Service; Accessories And Modifications - GMC 2010 T-Series Owner's Manual

Service

For service and parts needs, visit your dealer/retailer.
You will receive genuine GM parts and GM-trained and
supported service people.
Genuine GM parts have one of these marks:

Accessories and Modifications

Adding non-dealer accessories to the vehicle can affect
its performance and safety. Such things as airbags,
braking, stability, ride and handling, emissions systems,
aerodynamics, durability, and electronic systems like
anti-lock brakes, traction control, and stability control
could be affected. Some non-dealer accessories could
even cause malfunction or damage to parts and
systems and would not be covered by the vehicle
warranty.
Damage to vehicle components resulting from the
installation or use of non-GM certified parts, including
control module 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. Your GM
dealer can accessorize the vehicle using genuine GM
Accessories. When you go to your GM dealer and ask
for GM Accessories, you will know that GM-trained and
supported service technicians will perform the work
using genuine GM Accessories.
5-3