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 RecordersHeadlamps
Driver Side Shown, Passenger Side Similar
Headlamp
To replace one of the headlamp
bulbs:
Open the hood. See Hood.
For the driver side bulb,
remove the battery cover.
Remove the windshield washer
bottle filler neck by firmly
pulling it straight up and out of
th ...