The vehicle has a number of computers that record information about the vehicle’s
performance and how it is driven or used. 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 or to help GM improve
safety or features. 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.
GM collects information about the use of your vehicle including operational and
safety related information. We collect this information to provide, evaluate, improve,
and troubleshoot our products and services and to develop new products and services...
Other information:
Adding accessories that change the vehicle's frame, bumper system, height, front
end, or side sheet metal, may keep the airbag system from working properly.
The operation of the airbag system can also be affected by changing, including
improperly repairing or replacing, any parts of the following:
Airbag system, including airbag modules, front or side impact sensors, sensing
and diagnostic module, or airbag wiring
Front seats, including stitching, seams, or zippers
Seat belts
Steering wheel, instrument panel, overhead console, ceiling trim, or pillar
garnish trim
Inner door seals, including speakers
Your dealer and the service manual have information about the location of the
airbag modules and sensors, sensing and diagnostic module, and airbag wiring along
with the proper replacement procedures...
Adding non-dealer accessories or making modifications to the vehicle can affect
vehicle performance and safety, including such things as airbags, braking, stability,
ride and handling, emissions systems, aerodynamics, durability, and electronic systems
like antilock brakes, traction control, and stability control...