Abstract: A gateway of a vehicle is connected to a telematics control unit (TCU) and a plurality of electronic control units (ECUs). The gateway is programmed to receive a command from the TCU, the command specifying an electronic serial number (ESN) of a target ECU of the ECUs, and forward the command to the target ECU responsive to confirmation that the ESN of the target ECU is included in the web of trust.

Abstract: A gateway of a vehicle is connected to a telematics control unit (TCU) and a plurality of electronic control units (ECUs). The gateway is programmed to receive a command from the TCU, the command specifying an electronic serial number (ESN) of a target ECU of the ECUs, and forward the command to the target ECU responsive to confirmation that the ESN of the target ECU is included in the web of trust.

Abstract: A system includes a mobile-device processor configured to generate a first code based on a changing variable and a generation schema, both known by a mobile device and a vehicle and display the first code. The vehicle processor is configured to receive input of the first code, generate a second code based on the variable and schema, and grant vehicle access when the first code corresponds to the second code.

Abstract: Methods and systems to update controls in vehicle modules. Updating controls can include downloading an update to a vehicle from a server, upon interruption of the update, sending a download instruction to a proxy operating on a mobile device to resume update download at an offset location, resuming download of the update from the offset location using the mobile device, and sending the resumed part of the update from the mobile device to the vehicle when the vehicle requests an update from the proxy. The proxy can be an application running on the mobile device, which can use cellular or non-cellular communication and be away from the vehicle when completing download of a control update.

Abstract: Methods and systems to update controls in vehicle modules. Updating controls can include downloading an update to a vehicle from a server, upon interruption of the update, sending a download instruction to a proxy operating on a mobile device to resume update download at an offset location, resuming download of the update from the offset location using the mobile device, and sending the resumed part of the update from the mobile device to the vehicle when the vehicle requests an update from the proxy. The proxy can be an application running on the mobile device, which can use cellular or non-cellular communication and be away from the vehicle when completing download of a control update.