Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-18528029) - 2025
188 Vehicle Care
Noise Control System
N
OI
SE EMISSIONS WARRANTY
General Motors LLC, warrants to the first person
who purchases this vehicle for purposes other
than resale and to each subsequent purchaser
that this vehicle as manufactured by General
Motors LLC, was designed, built and equipped
to conform at the time it left General Motors
LLC’s control with all applicable U.S. EPA Noise
Control Regulations. This warranty covers this
vehicle as designed, built and equipped by
General Motors LLC, and is not limited to
any particular part, component or system of
the vehicle manufactured by General Motors
LLC. Defects in design, assembly or in any
part, component or system of the vehicle as
manufactured by General Motors LLC, which,
at the time it left General Motors LLC’s control,
caused noise emissions to exceed Federal
standards, are covered by this warranty for
the life of the vehicle.
TAMPERING WITH NOISE CONTROL
SYS
TEM PROHIBITED
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.
Among those acts presumed to constitute
tampering are the acts listed below.
Insulation:
Removal of the noise shields or any
undercab insulation.
Engine:
Removal or rendering engine speed governor, if
so equipped, inoperative so as to allow engine
speed to exceed manufacturer specifications.
Modification of the engine control system
or
calibration.
Fan and Drive:
•
Removal of fan clutch or rendering
clutch inoperative.
•
Removal of the fan shroud.
Air Intake:
•
Removal of air cleaner silencer.
•
Reversing air cleaner cover.
Exhaust:
•
Removal of muffler, catalytic converter,
and/or resonator.
•
Removal of exhaust pipes and exhaust
pipe clamps.
Starter Switch Check
{ Warning
Wh
en you are doing this inspection, the
veh
icle could move suddenly. If the vehicle
moves, you or others could be injured.
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