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 RecordersPark Brake and P (Park) Mechanism Check Automatic Transmission Unit Parking Lock Mechanism
Warning:When you are doing this check, the vehicle could begin tomove. You or others could be injured and property could be damaged.Make sure there is room in front of the vehicle in case it beginsto roll. Be ready to apply the regular brake at once should thevehicle begin to move.Park on a fairly s ...