Accessories and Modifications

Adding nondealer 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 vehicle components resulting from modifications or the installation or use of nonGM 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.

    See also:

    Flash-to-Pass
    The flashtopass feature works with the low beams or Daytime Running Lamps (DRL) on or off. To flash the high beams, pull the turn signal/lane change lever all the way toward you, then release i ...

    Vehicle Speed Messages
    ICE POSSIBLE DRIVE WITH CARE This message displays when the outside temperature is cold enough to create icy road conditions. Adjust your driving accordingly. SPEED LIMITED TO XXX KM/H (MPH ...

    A spirit of lightness and balance
    Making the Cadillac ATS one of the segment's lightest cars was a fundamental criterion for and the guiding principle during its development, but it was done in a nuanced manner that ensures a refi ...