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. These accessories or modifications could even cause malfunction or damage not covered by the vehicle warranty.
Damage to suspension components caused by modifying vehicle height outside of factory settings will not be covered by the vehicle warranty.
Damage to vehicle components resulting from modifications or the installation or use of non-GM certified parts, including control module or software modifications, is not covered under the terms of the vehicle warranty and may affect remaining warranty coverage for affected parts.
GM Accessories are designed to complement and function with other systems on the vehicle. See your dealer to accessorize the vehicle using genuine GM Accessories installed by a dealer technician.
Also, see Adding Equipment to the Airbag-Equipped Vehicle.
Engine Identification (LAF, LEA, or LUK)
Identification can be made through the use of the BroadcastCode label on the engine-(1) and the use of the partialVIN etched in one of two places - the primary location is on thestarter motor flange-(2). The secondary location is theoil filter bowl.1ornat005010010Barcode-(1)Sequence Number-(2)Day-(3 ...