Chevrolet EXPRESS - 2011 Manual page 274

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.
Also, see
.
The following information relates to
compliance with federal noise
emission standards for vehicles
with a Gross Vehicle Weight Rating
(GVWR) of more than 4 536 kg
(10,000 lbs). The Maintenance
Schedule provides information on
maintaining the noise control system
to minimize degradation of the noise
emission control system during the
life of your vehicle. The noise
control system warranty is given in
your warranty booklet.
These standards apply only to
vehicles sold in the United States.
Federal law prohibits the following
acts or the causing thereof:
1. The removal or rendering
inoperative by any person,
other than for purposes of
maintenance, repair or
replacement, of any device or
element of design incorporated
into any new vehicle for the
purpose of noise control, prior to
its sale or delivery to the ultimate
purchaser or while it is in use; or
2. The use of the vehicle after such
device or element of design has
been removed or rendered
inoperative by any person.