Abstract: A method and a system for providing TTY services in a vehicle. The method may be carried out by the following steps: (a) providing a vehicle telematics unit configured to receive calls according to a first telecommunication standard and a second telecommunication standard, wherein the second telecommunication standard is newer than the first; (b) receiving an indication that a vehicle user desires to use a TTY device at the vehicle; (c) in response to step (b), switching to the first telecommunication standard until another indication is received indicating the user no longer desires to use the TTY device; and (d) sending or receiving a TTY message from the vehicle using the TTY device via the first telecommunications standard.

Abstract: Systems and methods are provided for detecting low vehicle battery charge and responding appropriately to prevent complete vehicle battery drainage. One method includes: monitoring the charge of the vehicle battery; determining, by a telematics unit, that the charge of the vehicle battery has reached a low battery charge threshold while the vehicle engine is off; and providing, by the telematics unit, a notification to a telematics subscriber that the vehicle battery has low charge. Another method includes: monitoring the charge of the vehicle battery; determining, by a telematics unit, that the charge of the vehicle battery has reached a low battery charge threshold while the vehicle engine is off; and in response to determining that the low battery charge threshold has been reached, disabling at least one load draining the vehicle battery.

Abstract: A method and a system for providing TTY services in a vehicle. The method may be carried out by the following steps: (a) providing a vehicle telematics unit configured to receive calls according to a first telecommunication standard and a second telecommunication standard, wherein the second telecommunication standard is newer than the first; (b) receiving an indication that a vehicle user desires to use a TTY device at the vehicle; (c) in response to step (b), switching to the first telecommunication standard until another indication is received indicating the user no longer desires to use the TTY device; and (d) sending or receiving a TTY message from the vehicle using the TTY device via the first telecommunications standard.

Abstract: A motor vehicle has an engine kill device that can automatically stop the engine. The vehicle has components for determining the engine may have been errantly left running, in which case the vehicle sends a notice to the user. The vehicle is capable of receiving a response from the user with instructions to leave the engine running. If no response is received, the vehicle can activate the engine kill device and stop the engine, or the vehicle can leave the engine running if a response is received from the user indicating the engine should remain running.

Abstract: Methods and systems are provided for detecting a power line of a telematics unit is incorrectly wired. In one example, a system includes a first module that evaluates at least one of a validity of a global positioning system and a powered on status of the telematics unit. A second module determines that the power line of the telematics unit is incorrectly wired based on the at least one of the validity of a global positioning system and the powered on status.

Abstract: A motor vehicle has an engine kill device that can automatically stop the engine. The vehicle has components for determining the engine may have been errantly left running, in which case the vehicle sends a notice to the user. The vehicle is capable of receiving a response from the user with instructions to leave the engine running. If no response is received, the vehicle can activate the engine kill device and stop the engine, or the vehicle can leave the engine running if a response is received from the user indicating the engine should remain running.

Abstract: Systems and methods are provided for detecting low vehicle battery charge and responding appropriately to prevent complete vehicle battery drainage. One method includes: monitoring the charge of the vehicle battery; determining, by a telematics unit, that the charge of the vehicle battery has reached a low battery charge threshold while the vehicle engine is off; and providing, by the telematics unit, a notification to a telematics subscriber that the vehicle battery has low charge. Another method includes: monitoring the charge of the vehicle battery; determining, by a telematics unit, that the charge of the vehicle battery has reached a low battery charge threshold while the vehicle engine is off; and in response to determining that the low battery charge threshold has been reached, disabling at least one load draining the vehicle battery.

Abstract: A method of controlling a Wi-Fi service provided by a vehicle includes detecting at the vehicle that an ignition switch of the vehicle is turned off; wirelessly receiving at the vehicle a message that controls the operation of the Wi-Fi service while the ignition switch of the vehicle is turned off; and activating or deactivating the Wi-Fi service provided by the vehicle in response to the wirelessly-received message while the ignition switch of the vehicle is turned off.

Abstract: Methods and systems are provided for detecting a power line of a telematics unit is incorrectly wired. In one example, a system includes a first module that evaluates at least one of a validity of a global positioning system and a powered on status of the telematics unit. A second module determines that the power line of the telematics unit is incorrectly wired based on the at least one of the validity of a global positioning system and the powered on status.