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 RecordersBattery Disconnect Warning
Warning: Unless directed otherwise, the ignition and start switch
must be in the OFF or LOCK position, and all electrical loads must be
OFF before servicing any electrical component. Disconnect the negative battery
cable to prevent an electrical spark should a tool or
equipment come in contact ...
Door Ajar Indicator Description and Operation
Door Ajar Indicator System Components
The door ajar indicator system consists of the following components:
Body control module (BCM)
Instrument cluster
Driver information center
Driver door latch
Passenger door latch
Left rear door latch
Right rear door latch
Liftgate door latch
...
Inflatable Restraint Seat Position Sensors - If Equipped
The inflatable restraint seat position sensor is used to determine the
proximity of a front driver or passenger seat position with respect to
the frontal air bag. The seat position sensor interfaces with the inflatable
restraint sensing and diagnostic module (SDM). The state of the
seat positi ...