Abstract: A method, system, and computer program product for vehicle presence indication. The method includes receiving a request including an announcement type at a first vehicle. The receiving is from a second vehicle via a mobile ad-hoc network that includes the first vehicle and the second vehicle. The announcement type is initiated at the first vehicle in response to receiving the request.

Abstract: A mesh lighting system for emergency vehicles and method for retrofitting a vehicle with emergency lights is disclosed. The system comprises a plurality of independent signalling light sources each supplied by a dedicated source of energy, a control module, and a low powered wireless network connecting said control module with the plurality of light sources. The plurality of independent signalling light sources emit at least one light flash in response to a control signal received from the control module.

Abstract: A tail lamp system for a vehicle includes a dynamic signal unit, a control unit, a set of input lines electrically connecting the dynamic signal unit with the control unit, an LED display board, and a set of output lines electrically connecting the LED display board with the control unit. The dynamic signal unit provides a plurality of dynamic signals relating to various instant driving information of the vehicle. The control unit receives each of the dynamic signals of the dynamic signal unit and outputs a corresponding control signal. The LED display board receives the control signal from the control unit and displays a corresponding pattern according to the received control signal to indicate instant driving information of the vehicle, for example, turning, braking, temporary stop and breakdown of the vehicle.

Abstract: A control device for a vehicle flasher assembly configured with an informing circuit to inform a disconnection state of any one of main flashers out of vehicle flasher assembly including a left front part main flasher disposed at a left position on a front part of a motor vehicle, a left rear part main flasher disposed at the left position on a rear part of the vehicle, a left side part sub-flasher disposed at the left position on a side part of the vehicle, a right front part main flasher disposed at a right position on the front part of the vehicle, a right rear part main flasher disposed at the right position on the rear part of the vehicle, and a right side part sub-flasher disposed at the right position on the side part of the vehicle.

Abstract: A vehicle flasher hazard function is implemented on an electrical controller having control over vehicle exterior lights. The flasher hazard function features an optimized duty cycle and operational frequency, consistent with legal requirements for the flasher rate. The point in time that individual bulbs are turned on is staggered in time to avoid all bulbs being simultaneously activated. This distributes the current surges associated with bulb activation being distributed in time. When a vehicle battery can no longer sustain the legally mandated flasher rate an optional path for flasher operation at a reduced rate is provided.

Abstract: The present invention relates to an emergency assistance beacon signal methodology for law enforcement, emergency and military personnel by which such personnel who encounter an imminent need for assistance or rescue while on duty in a vehicle, may utilize such methodology to invite the assistance or rescue of other such personnel. Upon a first personnel determining that assistance or rescue is needed, the first personnel activate a powerful light element attached to a such that the powerful light directs a beam of light upwardly and non-horizontally from the vehicle. Upon a second personnel recognizing the beam of light, travels to a general area of the beam of light to locate the first and provides first personnel assistance or rescue.

Abstract: The invention relates to a system for signalling and locating vehicles involved in accidents, stopped vehicles and vehicles with mechanical problems in daytime and night-time conditions as well as in adverse weather conditions. According to the invention, the occupants of the vehicle can raise the alarm without leaving the vehicle such as to avoid any physical risk. The invention comprises a case and a hinged cover housing an air container. One end of the air container is connected to a gaseous fluid outlet pipe and to a manual quick-opening non-return valve which is located in the mouth of an empty aerostatic inflatable fluorescent body. The aforementioned body is folded inside the case when not in use and is deployed in the event of a vehicle impact by means of a device comprising an inertia sensor which is activated by a deceleration force exceeding 3G and which is powered by a power source comprising batteries or accumulators belonging to the electric circuit of the vehicle or independent batteries.

Abstract: In one illustrative example, a vehicular flasher unit is operative to provide a heartbeat flasher scheme in vehicle flasher lights. One illustrative technique in the vehicular flasher unit involves monitoring a flasher enable input to identify a flasher enable signal and producing, at a light illumination output in response to identifying the flasher enable signal, a heartbeat flashing scheme in the vehicle flasher lights. The heartbeat flashing scheme has a repeating sequence of two heartbeat pulse flashes in the vehicle flasher lights which include a first heartbeat pulse flash and a second heartbeat flash. Each first heartbeat pulse flash has a first peak intensity in the vehicle flasher lights and each second heartbeat pulse flash has a second peak intensity in the vehicle flasher lights that is preferably different from the first peak intensity.

Abstract: A brake-actuated message device. An illustrative embodiment of the brake-actuated message device includes a device casing having a front panel, a plurality of lights carried by the front panel, a message panel carried by the front panel generally adjacent to the plurality of lights, a message provided in the message panel, a lighting module connected to the plurality of lights and brake circuit wiring connected to the lighting module.

Abstract: The present invention is operative to disable at least one infotainment device under certain conditions relative to the current driving environment of the user. The system uses a weighted matrix to assign risk to certain sensed conditions while driving. A changed condition is assigned a weight and the weighted risks are summed to calculate risk level information. The risk level information is thereafter compared to priority level information associated with at least one infotainment device. When the risk level information exceeds or is equal to the priority level information of the at least one infotainment device the system temporarily disables the infotainment device until the driving environment changes to a condition where it is safe to operate the infotainment device.

Abstract: Embodiments for lighted see-through displays include a plurality of light elements positioned thereon at select points arranged to convey information. The light elements may be selectively lit to provide fixed or moving information, or may even be programmed to change or even display like a marquee or even a television. Particular embodiments of the invention employ a lightweight, flexible substrate to support the light elements. Other embodiments employ one or more comparatively rigid substrates supporting rows of light elements. Particular applications for the lighted sign embodiments include display in vehicle windows such as police vehicle windows, construction and utility vehicle windows, and school bus and public transportation windows. Global Positioning System and radio signal receiver components allow for regional display of pertinent information in particular embodiments of the invention.

Abstract: Systems, devices, and methods for alerting pedestrians as to the presence of a vehicle are provided. The system for providing alert tones may include a personal communication device, such as a mobile terminal, a vehicle communication system, and an output device. A driver of a vehicle equipped with a vehicle communication system may select an alert tone to download to his vehicle directly using the vehicle communication system or indirectly via a communications link between the personal communication device and the vehicle communication system. Upon approaching a pedestrian, the driver may actuate the vehicle communication system to sound the alert tone through the output device by interacting with an input device, such as a button or a switch. Actuation may also be caused by a voice command or automatically, through the detection of an object within a certain distance of the vehicle via one or more sensors.

Abstract: A method of controlling a plurality of lights on a vehicle lighting system provides a first and second light having a first and second processor. Each is in operative communication with a bus establishing an operative communication between the first and second processor. A master processor is arbitrated among the first and second processors. Thereafter the master processor signals the first and second processors to execute a preconfigured flash pattern.

Abstract: Potential disadvantages of the enhanced emergency hazard warning lights set forth in U.S. Pat. No. 7,352,278 are overcome by adding a lamp that beams its light rearward toward approaching traffic, is located approximately midway between and above the horizontal alignment of the rear turn signal lamps, thereby forming a triangular flashing emergency hazard warning signal that cannot be discontinued or otherwise disturbed when the vehicle's brakes and brake lights are simultaneously operated.

Abstract: A third light is added above the lower two rear turn signal lights of an automotive vehicle Detection hardware is included which senses when both lower lights begin flashing simultaneously due to activation of the vehicle's 4-way hazard warning system. Such detection also introduces current pulses to the third light which flashes simultaneously with the lower two lights to generate a triangular configuration of the three flashing lights. Retrofit circuitry is described to enable installing the modified triangular signal into existing vehicles.

Abstract: A method of providing a user controllable sign, on the trailer of a tractor-trailer rig. The tractor includes a cab and the trailer is electrically connected to the tractor by way of a jack that provides a set number of electrical connections between the tractor and the trailer. The method begins with the installation of a manual input device in the cab. This device creates a signal that can be overlaid on a jack input without disrupting the input and is electrically connected to a jack input. Also, a signal receiving unit is installed in the trailer, and is connected to a wire electrically connected to the jack input that receives the user signal from the manual input device. This unit is able to determine the presence of the signal from the manual input device. Also installed in the trailer, is a sign deployment controller that is at least in part responsive to the user signal receiving unit. Finally, a sign assembly, controlled by the sign deployment controller, is installed.

Abstract: The Universal Help Light is a rectangular shaped light that is positioned or mounted along the rear windshield of an automobile. When the light is connected to the vehicles flasher system, it flashes the word “H E L P” concurrently with the auto's hazard or emergency flashers. The light flashes as described, to give clear notice that help is needed and is being summoned.

Abstract: The progressive brake light apparatus sequentially lights three separate brake lights via hydraulic pressure sensing of the brake system between the master cylinder and the rear brakes. The apparatus provides a brake light assembly with the three distinctly different light sources disposed within, each of different size and different color, the brightest and largest being disposed at the top of the brake light assembly and the smallest and dimmest at the bottom of the brake light assembly. The apparatus thereby provides signal to trailing vehicles of the intensity of braking force applied, and therefore with a distinct signal of only initial brake pressure, versus average stopping, versus intense braking.

Abstract: A warning device comprising a lightbar, a programmable chip for controlling LED lights, a controller, and a rechargeable battery. The lightbar is removably coupled to the emergency vehicle or another object such as a road block, where a dangerous situation exists, to warn persons of a hazard. Rechargeable batteries are recharged by solar panels on the lightbar. Rechargeable batteries are used to power the warning device. The programmable chip for controlling the LED is linked wirelessly to the controller, a remote control. The lightbar may be activated by a remote control from inside or outside the vehicle or from a base station to perform a variety of tasks. Warnings may be transmitted from the lightbar using visual and audio signals. Visual signals may include flashing at various speeds and intensities in various colors, text messages and other warning signals to advise persons of dangers in an effort to promote safety.

Abstract: A system includes lights coupled to a vehicle power supply source. One light is located at the vehicle's rear window. Remaining lights are independently and simultaneously operable with the one light. A mechanism is included for determining whether the vehicle is parked. Another mechanism determines whether a vehicle brake pedal has been engaged beyond a threshold level while the vehicle is not parked. A further mechanism flashes the one light and is mated to the park determining mechanism for activating the one light when the vehicle is parked and the brake pedal is engaged. The flashing mechanism is coupled to the brake pedal pressure level determining mechanism for activating the one light when the vehicle is not parked and the brake pedal is engaged beyond the threshold level. The flashing mechanism is automatically reset to a non-operating mode when the brake pedal is disengaged during parked and non-parked conditions.

Abstract: A hazard warning apparatus for use in motor vehicles enabling a driver observing a road hazard to warn other drivers. One embodiment is provided with at least one light preferably an array of lights arranged as a hazard warning signal mounted a body associated of the vehicle in a forward facing direction in order to warn oncoming traffic when illuminated. A power supply circuit provides an intermittently pulsed power signal to the array of lights for a limited period of time in response to an input signal and then automatically turns off. An input switch located proximate the driver when engaged communicates with the power supply causing the array of lights to be intermittently pulsed. In another embodiment the hazard warning apparatus communicates with other vehicles providing a hazard warning via a wireless signal.

Abstract: The lighting system having a plurality of winker lamps disposed on front and rear portions of a vehicle body, a winker switch, and a lighting control circuit which performs changeover function allowing the winker lamps at a front portion of the vehicle body to lit as position lamps. The lighting control circuit is connected to a battery through an ignition switch. The lighting system further includes a power supply circuit which supplies, in an ignition off state, power to the lighting control circuit in response to an output signal from an antitheft apparatus to cause the winker lamps to light up or flicker. The output terminal of the antitheft device is connected to an electrical connection formed between the winker switch and the left and right rear lamps.

Abstract: A hazard flasher system for a personal motor vehicle is disclosed. The hazard flasher system comprises at least a first light-emitting diode (LED), a second LED, and a circuit board. The first LED is mounted on the personal motor vehicle such that light from the first LED is projected generally forward from the personal motor vehicle. The second LED is mounted on the personal motor vehicle such that light from the second LED is projected generally rearward from the personal motor vehicle. The circuit board uses electrical energy from the personal motor vehicle's primary battery to output periodic pulses of electric energy that cause the first and second LEDs to flash.

Abstract: The invention teaches a passive vehicle rear end warning and collision prevention method and apparatus thereof, comprising: a traveling data monitoring unit serving to monitor and sample the traveling data of present vehicle; a collision prevention information transmitting and receiving unit serving to transmit and receive the collision prevention information; an electronic control unit serving to analyze and process the sampled data so as to generate the collision prevention information and to receive the collision prevention information from other vehicle, and to control the traveling status of prevent vehicle based on the received collision prevention information so as to avoid rear end collision with other vehicle, so that the purpose of rear end warning and collision prevention is realized by receiving passively the collision prevention information from another vehicle.

Abstract: A self leveling warning light for vehicles employing a light assembly that is pivotedly secured to an inner surface of a vehicle window by a mounting base suction cup. The light assembly has a plurality of LEDs whose intensity is amplified by a reflector and focused by an optical lens providing light emission in distances exceeding one mile with minimal battery drain. A control circuit having a power source is mounted within said light assembly and electrically coupled to the LEDs, the control circuit controlling four red LEDs separated by a centrally located yellow LED, the four red LEDs alternate on and off at sync rate of approximately 500 ms and the yellow LED turns on for about 750 ms and off for about 1 second. The light assembly maintaining directional pointing of the LEDs in a horizontal plane when the mounting base is moved between vertical and horizontal orientations by gravity weighting of the light assembly.

Abstract: An integrated LED warning and vehicle lamp has a base configured to replace an existing vehicle lamp by reception into the lamp's reflector shell. The integrated warning and vehicle lamp includes first and second arrays of LEDs arranged on a support projecting from the base. One array is used to reproduce the vehicle signal and the second array provides a warning light signal. A collimator organizes light from one or more LED in a direction aligned with the intended direction of light emission from the vehicle lamp. An interface electrical circuit connects one array of LEDs to the vehicle electrical system. A warning signal electrical circuit energizes the other array to produce a variety of warning signals and/or illumination patterns.

Abstract: Vehicle brake lights, hazard lights, bicycle lights, and safety lights for pedestrians, walkers, and runners. The human eye perceives light differently depending on its frequency (or wavelength) relative to the condition or degree of ambient lighting. Moreover, the human visual system perceives changes more readily than a static scene or state. Additionally, light in the green/blue part of the visual spectrum is perceived with much greater apparent intensity compared to red, particularly in low ambient light conditions. Accordingly, a lighting system and method that includes using brake lights that provide continuous changes in color during deceleration and, moreover, that uses blue, green, blue-green, yellow-green, and amber (or yellow) light or combinations thereof.

Abstract: A traffic signal system for utilizing an efficient and simplistic structure to regulate vehicle and pedestrian traffic. The traffic signal system includes a support member including at least one receiver member and at least one light module including a plug member extending outwardly from the light module, wherein the plug member is positionable within a cavity of the receiver member.

Abstract: The present invention relates to a communication systems, and more specifically to a vehicular messaging display unit. The unit allows one of a plurality of messages to be displayed on at least one of the front or rear windshield to other drivers. A remote control unit is provided for customizing messages by the user in terms of content and appearance as well as for controlling the display of the messages. The display is designed so that it does not impede the safety of drivers.

Abstract: Vehicle 4-way emergency flasher circuits are modified by circuit branches which enable flashing selected pairs of emergency lamps at a higher frequency or in other discernible different ways. These selected lamps become visible and recognizable as right or left turn signals while the 4-way flasher circuit is operating.

Abstract: A device and system is provided for alerting or signaling a vehicle driver after the driver leaves a vehicle compartment. A signaling device, in a deployed condition, is physically located in a forward line-of-sight of a driver operator of the vehicle. The signaling device is deployed automatically in the event of the opening of a vehicle door from the inside of a vehicle compartment. Resetting of the signaling device, out of the line-of-sight, requires manual operation by the vehicle operator outside the vehicle compartment. The system ensures that the operator will be alerted to safety procedures required after activities outside vehicle.

Abstract: An Abrupt Braking Indicator (ABI) that complements a vehicle's existing rear brake light by determining the difference between regular brake pedal usage and dangerous abrupt stops or abrupt-braking that often causes accidents. It is when, and only when, an abrupt stop or hard brake occurs at the differential gravitational value of 0.5 G or more that the present invention emits highly noticeable flashing lights that warn following drivers of the sudden hazard ahead.

Abstract: Potential disadvantages of the enhanced emergency hazard warning lights set forth in U.S. Pat. No. 7,352,278 are overcome by adding a lamp that beams its light rearward toward approaching traffic, is located approximately midway between and above the horizontal alignment of the rear turn signal lamps, thereby forming a triangular flashing emergency hazard warning signal that cannot be discontinued or otherwise disturbed when the vehicle's brakes and brake lights are simultaneously operated.

Abstract: The present invention relates to an emergency assistance beacon signal methodology for law enforcement, emergency and military personnel by which such personnel who encounter an imminent need for assistance or rescue while on duty in a vehicle, may utilize such methodology to invite the assistance or rescue of other such personnel. Upon a first personnel determining that assistance or rescue is needed, the first personnel activate a powerful light element attached to a such that the powerful light directs a beam of light upwardly and non-horizontally from the vehicle. Upon a second personnel recognizing the beam of light, travels to a general area of the beam of light to locate the first and provides first personnel assistance or rescue.

Abstract: A system for providing warning lights for emergency vehicles in which the warning lights are incorporated into standard appearing accessories of the vehicle. A hood mounted deflector includes warning lights and takedown lights. Side window vent visors include warning lights, alley lights, and a convenience light. A rear spoiler includes warning lights. The warning lights are connected to at least one controller that provides various patterns of warning lights involving at least one color. In one embodiment, the takedown lights are connected to a controller that provides for flashing the takedown lights in addition to operating them continuously. The convenience light is connected to the interior lights of the vehicle. An operator panel in the vehicle is connected to the controllers and the alley lights.

Abstract: A winker assembly for a vehicle has a hazard maintaining function that can maintain a hazard state even if a key is removed when moving away from the vehicle, with a comparatively simple and inexpensive structure. If a hazard switch is turned on with the ignition switch in an on state, the LOAD terminal of the winker relay is connected to the winkers, and all the winkers are flashed to give a hazard state. The winker relay is provided with a current detection circuit for detecting current flowing in the winkers, and a maintaining circuit for maintaining a winker flashing signal based on detected current, and when it has been determined that detected current is equivalent to four winker lamps being lit current for flashing the winkers is maintained even after the ignition switch is turned off.

Abstract: The automotive hazard flashers described make more usable the distinctive, high-visibility flash hazard signal of U.S. Pat. No. 6,515,584 B2. That signal is here made available, at the driver's selection, as an auxiliary alternative hazard signal to a standard hazard signal. Both signals are displayed in a vehicle's turn signal lamps. The auxiliary high-visibility hazard signal may also be displayed in supplementary lamps. Automatic cancellation of hazard signals by activating a turn signal is made available. The use of one distinctive, high-visibility hazard signal, such as that of U.S. Pat. No. 6,515,584 B2, is made available as a single, consistent warning signal for different types of hazards, including manually signaled hazard warnings, vehicle-in-reverse warning and rapid deceleration warning.

Abstract: The present invention discloses a lane departure warning method, which functions to choose the data acquiring source according to brightness of the environment surrounding a vehicle and weather status so as to reduce the erroneous judgment of lane departure during image processing and analyzing. In addition, the present invention also presents a lane departure warning apparatus using the foregoing method, which comprises at least a first information acquisition unit, at least a second information acquisition and a information processing/information processing/controlling unit. The first information acquisition unit disposed on the vehicle is capable of capturing the image around the vehicle while the second information acquisition unit disposed on the bottom of the vehicle is capable of capturing image under the bottom of the vehicle.

Abstract: An inter-vehicle communication device for a vehicle includes: a transmission element for transmitting information about the vehicle to other vehicles with a predetermined period; a transmission controller for controlling the transmission element; and a detector for detecting a state of an indicator in the vehicle. The indicator informs a person around the vehicle about a state and existence of the vehicle, and the transmission controller controls the transmission element to transmit the information with a period shorter than the predetermined period when the detector detects that the indicator functions.

Abstract: A novel optical design based on a faceted conical or curved reflector centered within an upward facing circular array of light emitting diodes (LED) and protected by a transparent cover.

Abstract: An automatic warning light control device is applicable to an automobile and includes a controller electrically coupled to directional signal lights of the automobile. The controller is electrically coupled to a warning light system, a windshield wiper system, at least one door of the automobile, and a trunk lid. When the windshield is activated in a rain condition, or when the door or the trunk lid is not properly closed, the controller automatically activates the warning light system, wherein both directional signal lights blink simultaneously. When the directional signal lights are used for indication of direction, the directional signal lights are automatically switched from the warning mode to a direction indication mode where only the designated directional signal light blinks. Once the direction indication operation is completed, the directional signal lights automatically go back to the warning mode to blink simultaneously.

Abstract: A vehicle on-board unit of a host vehicle is configured to communicate with other vehicle to alert the driver of a potential braking situation in a preceding vehicle. The vehicle on-board unit has an incoming message receiving section, an incoming message relevancy section and a driver warning section. The incoming message receiving section receives a preceding vehicle message containing throttle release data of a preceding vehicle located in front of the host vehicle. The incoming message relevancy section performs a relevancy determination of the throttle release data received. The driver warning section selectively alerts a driver of the host vehicle of a potential braking situation of the preceding vehicle based upon the relevancy determination.

Abstract: A vehicle on-board unit of a host vehicle is configured to activate its brake lights upon determining a vehicle traveling condition exists that is indicative of a potentially inadequate safety zone between the host vehicle and a following vehicle. The vehicle on-board unit has a vehicle traveling condition detecting section, an automatic brake light triggering section and a brake light activating section. The vehicle traveling condition detecting section detects the vehicle traveling condition indicative of a potentially inadequate safety zone. The automatic brake light triggering section outputs a brake light activation signal upon determining a predetermined condition has been satisfied based upon the detected vehicle traveling condition. The brake light activating section activates the brake lights without a braking operation being performed upon receiving the brake light activation signal from the automatic brake light triggering section.

Abstract: A vehicular wireless signal controller to work in an emergency warning system is provided that is simultaneously operable through a control head or a remote. The vehicular wireless signal controller includes a remote, a control head, a remote receiver and a control unit. The driver in pursuit or high speed chase situation because of emergent duty or timing wants to operate the emergency signaling system, he or she may needs to look for the control head. As a result, the driver can't mind his or her road's condition and it may cause accidents easily. A remote can be mounted on the top of turning axis of the steering wheel's shaft where is very close to the driver's hands holding with to improve the operability of the signaling system and reduce hazardous situation while in use with emergency vehicles.

Abstract: A vehicle flasher hazard function is implemented on an electrical controller having control over vehicle exterior lights. The flasher hazard function features an optimized duty cycle and operational frequency, consistent with legal requirements for the flasher rate. The point in time that individual bulbs are turned on is staggered in time to avoid all bulbs being simultaneously activated. This distributes the current surges associated with bulb activation being distributed in time. When a vehicle battery can no longer sustain the legally mandated flasher rate an optional path for flasher operation at a reduced rate is provided.

Abstract: The Universal Help Light is a rectangular shaped light that is positioned or mounted along the rear windshield of an automobile. When the light is connected to the vehicles flasher system, it flashes the word “H E L P” concurrently with the auto's hazard or emergency flashers. The light flashes as described, to give clear notice that help is needed and is being summoned.

Abstract: A modular warning signal light system comprising at least one support. The at least one support having at least one module receiving port. The module receiving ports constructed and arranged to removably receive the support engagement member of a module. Each module having at least one visible side. The at least one visible side having at least one light emitting diode light source engaged thereto. The at least one light emitting diode light source, module and support all in independent electrical communication with a controller. The controller constructed and arranged to selectively activate the at least one support, the at least one module, the at least one light emitting diode light source, and any combinations thereof to create at least one warning light signal.

Abstract: A hazard warning means for a vehicle, including: deceleration triggered actuation means, controlling means, and visual indicators, wherein said deceleration triggered actuation means including means for detection of a deceleration of a prescribed threshold and means for generating an actuation signal upon detection of said deceleration, said controlling means includes means for causing said visual indicating means to generate visible signals representing hazard conditions for a predetermined time.

Abstract: Embodiments for lighted see-through displays include a plurality of light elements positioned thereon at select points arranged to convey information. The light elements may be selectively lit to provide fixed or moving information, or may even be programmed to change or even display like a marquee or even a television. Particular embodiments of the invention employ a lightweight, flexible substrate to support the light elements. Other embodiments employ one or more comparatively rigid substrates supporting rows of light elements. Particular applications for the lighted sign embodiments include display in vehicle windows such as police vehicle windows, construction and utility vehicle windows, and school bus and public transportation windows. Global Positioning System and radio signal receiver components allow for regional display of pertinent information in particular embodiments of the invention.

Abstract: The warning device contains a plastic sheet having a number of through holes and/or a number of magnetic elements positioned alternately along the edges. On a major surface of the plastic sheet, one or more reflective plastic shapes are affixed by high-frequency fusion along which a number of light emitting diodes are arranged beneath and protected by transparent covers. The light emitting diodes draws electricity from a battery or from a cigarette lighter of a vehicle. When the vehicle is broken down, the warning device can be attached to a metallic surface by the magnetic elements, or it can be hanged or tied to something by running a number of threads through the through holes.