Noise Control System - GMC Savana 2011 Owner's Manual

10-36 Vehicle Care
What to Use
Refer to Recommended Fluids and
Lubricants on page 11 7 to
determine what kind of lubricant
to use.

Noise Control System

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 the vehicle. The noise control
system warranty is given in the
vehicle 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.
Among those acts presumed to
constitute tampering are the acts
listed below.
I n f o r ma t i o n P r o v i d e d b y :
Insulation:
Removal of the noise shields or
any underhood insulation.
Engine:
Removal or rendering engine
speed governor, if the vehicle
has one, inoperative so as to
allow engine speed to exceed
manufacturer specifications.
Fan and Drive:
Removal of fan clutch, if the
vehicle has one, or rendering
clutch inoperative.
Removal of the fan shroud, if the
vehicle has one.
Air Intake:
Removal of the air cleaner
silencer.
Modification of the air cleaner.