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Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CRC - 8/19/19
360 Vehicle Care
Rear Axle
When to Check Lubricant
It is not necessary to regularly
check the rear axle fluid unless a
leak is suspected or an unusual
noise is heard. A fluid loss could
indicate a problem. Have it
inspected and repaired. This service
can be complex. See your dealer.
Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water
can overcome the seals and
contaminate the fluid. Contaminated
fluid will decrease the life of the
transfer case and/or drive axles and
should be replaced.
Noise Control System
NOISE 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 SYSTEM
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.
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