The vehicle has a number of computers that record information about the vehicle's performance and how it is driven. For example, the vehicle uses computer modules to monitor and control engine and transmission performance, to monitor the conditions for airbag deployment and deploy them in a crash, and, if equipped, to provide antilock braking to help the driver control the vehicle. These modules may store data to help the dealer technician service the vehicle.
Some modules may also store data about how the vehicle is operated, such as rate of fuel consumption or average speed. These modules may retain personal preferences, such as radio presets, seat positions, and temperature settings.
Reporting Safety Defects to
General Motors
Event Data RecordersDrive Range, Third Gear Default Automatic Transmission Unit
If the transmission is in 1st, 2nd or 3rd gear during a transmission electrical componentfailure, the transmission will default to 3rd-gear. All solenoids will default totheir normal state. If the torque converter clutch was applied, it will release. Thisdefault action will enable the vehicle to be ...