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 Recorders#PIT4720C: Odometer Servicing When The Odometer Cannot Be Set To The Actual Mileage - (May 2, 2013) Gauges Odometer
Subject:Odometer Servicing When The Odometer Cannot Be Set To The Actual MileageModels: 2014 and Prior GM Passenger Cars and Trucks This PI was superseded to update model years. Please discard PIT4720B.The following diagnosis might be helpful if the vehicle exhibits the symptom(s) describedin th ...