1996 CHEVROLET SUBURBAN Owners Manual

Center High Mount Stoplamp (CHMSL)
The individual bulbs
in the
CHMSL are not
replaceable. See your
dealer for assistance.
Rear Lamps
1. Open the tailgate or rear doors.
2. Remove the two black plastic plugs in the rear lamp assembly access
holes.
3. Remove the two
rear lamp assembly screws
inside the fender
and pull out the
lamp assembly.
You may want to
use a magnetic
screwdriver
when
removing the
screws.
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4. Remove the screws from the
bulb retainer and take the bulb
retainer off
of the
lamp assembly.
straight out of the
socket
.
5. Pull the old bulb
6. Put in a new bulb and push it in until it is tight.
7. Replace the bulb retainer.
8. Replace the rear lamp assembly and tighten the screws. You may want
to use a magnetic screwdriver when installing the screws.
9. Close the tailgate or rear doors.
Exhaust System
To help prevent damage to your exhaust system, do not continue to drive
your vehicle
if you notice:
Engine misfiring
Loss of performance
0 Exhaust system components hanging lower than normal
Loud exhaust system noises
0 Other unusual operating conditions
Have your engine and exhaust system serviced regularly.
Three- Way Catalytic Converter (Gasoline Engines)
Your vehicle’s three-way catalytic converter is designed to reduce the
pollutants
in your vehicle’s exhaust. Use only unleaded fuel in your vehicle.
If you use leaded fuel, you could damage your three-way catalytic converter
and other engine components.
Oxidation Catalytic Converter (Diesel Engines)
Your vehicle’s oxidation catalytic converter is designed to reduce the
particulates
in your vehicle’s exhaust. If your vehicle’s oxidation catalytic
converter ever needs to be replaced,
it must be replaced with an oxidation
converter intended for use
with diesel engines only.
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Engine Control Module System
Gasoline Engines
This system has an oxygen sensor (OS) that helps keep your engine’s
air-fuel mixture at a proper
level. Use only unleaded fuel in your vehicle. If
you use leaded fuel, you could damage your oxygen sensor (OS) and
three-way catalytic converter.
Diesel Vehicles Below 8,500 (3 850 Kg) GVWR
This system monitors engine speed and throttle position. It adjusts exhaust
gas recirculation to limit emissions.
Malfunction Indicator (SERVICE ENGINE SOON)
Light
The Malfunction Indicator (SERVICE ENGINE SOON) Light on your
instrument panel lets you know when your emission system needs service.
The light will come on briefly
when you start your engine to let you know
that the system is working.
If it does not come on when you start your
engine, or if
it comes on and stays on while you’re driving, your system
may need service. Your vehicle should still be driveable, but
you should
have your system serviced right away.
Secondary Air Injection Reaction (AIR) System
(Gasoline Engines)
You may have this system. It has a control valve that will direct air to where
it is needed. If the AIR system needs service, your Malfunction Indicator
(SERVICE ENGINE
SOON) Lamp on your instrument panel will come on.
Tires
We don’t make tires. Your new vehicle comes with high-quality tires made
by
a leading tire manufacturer. These tires are warranted by the tire
manufacturers, and their warranties are delivered with every new vehicle.
If
your spare tire is a different brand than your road tires, you will have a tire
warranty folder from each
of these manufacturers.
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Inflation - lire Pressure
The CertificationD’ire label which is on the rear edge of the driver’s door, or
on the incomplete vehicle document in the cab, shows the correct inflation
pressures for your tires, when they’re cold. “Cold” means your vehicle has
been sitting for at least three hours or driven no more than a mile.
You can operate some vehicles at reduced inflation pressures
only when
you’ll be carrying reduced loads. On those vehicles, the minimum cold
inflation pressures for a typical reduced load are printed on the “Improved
Ride Tire Pressure” label located on
the driver’s door. Weigh the vehicle to
find the load on each tire and see the label for the minimum cold inflation
pressures for that load.
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NOTICE:
Don’t let anyone tell you that underinflation or overinflation is
all right. It’s not.
If your tires don’t have enough air
(underinflation) you can get:
Too much flexing
0 Too much heat
Tire overloading
Bad wear
Bad handling
0 Bad fuel economy.
If your tires have too much air (overinflation), you can get:
Unusual wear
Bad handling
Rough ride
Needless damage from road hazards.
When to Check
Check your tires once a month or more. Also, check the tire pressure of the
spare tire.
How to Check
Use a good quality pocket-type gage to check tire pressure. Simply looking
at the tires will not tell you the pressure, especially if you have radial tires
- which may look properly inflated even if they’re underinflated.
If your tires have valve caps, be sure
to put them back on. They help prevent
leaks by keeping
out dirt and moisture.
Tire Inspection and Rotation
Tires should be inspected every 6,000 to 8,000 miles (10 000 to 13 000 km)
for any signs
of unusual wear. If unusual wear is present, rotate your tires as
soon as possible and check wheel alignment. Also check for damaged tires
or wheels. See “When it’s Time for New Tires’’ and “Wheel Replacement”
later
in this section for more information.
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The purpose of regular rotation is to achieve more uniform wear for all tires
on the vehicle. The first rotation
is the most important. See “Scheduled
Maintenance Services”
in the Index for scheduled rotation intervals.
FRT FRT
When rotating your
tires, always use the
correct rotation
pattern shown here.
When rotating your
tires,
always use one
of the correct rotation
patterns shown here.
After the tires have been rotated, adjust the front and rear inflation pressures
as shown
on the CertificatiodTire label. Make certain that all wheel nuts are
properly tightened.
See “Wheel Nut Torque” in the Index.
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When it’s Time for New Tires
Tread Wear
Indicators
One way to tell when
it’s time for new tires
is to check the
treadwear indicators,
which will appear
when your tires have
only
1/16 inch (1.6
mm) or less of tread
remaining.
You need a new tire if
0 You can see the indicators at three or more places around the tire.
e You can see cord or fidbric showing through the tire’s rubber.
The tread or sidewall is cracked, cut or snagged deep enough to show
cord
or fabric.
0 The tire has a bump, bulge or split.
0 The tire has a puncture, cut, or other damage that can’t be repaired well
because of the size or location
of the damage.
Buying New Tires
To find out what kind and size of tires you need, look at the
Certification/Tire label.
The tires installed
on your vehicle when it was new had a Tire Performance
Criteria Specification (TPC Spec) number on each tire’s sidewall. When you
get new tires, get ones with that same TPC Spec number. That way, your
vehicle will
continue to have tires that are designed to give proper
endurance, handling, speed rating, traction, ride and other things during
normal service
on your vehicle. If your tires have an all-season tread
design, the TPC number
will be followed by an “MS” (for mud and snow).
If
you ever replace your tires with those not having a TPC Spec number,
make sure
they are the same size, load range, speed rating and construction
type (bias, bias-belted or radial)
as your original tires.
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Uniform lire Qualify Grading
The following information relates to the system developed by the United
States National Highway Traffic Safety Administration which grades tires
by treadwear, traction and temperature performance. (This applies
only to
vehicles sold in the United States.)
Treadwear
The treadwear grade is a comparative rating based on the wear rate of the
tire when tested under controlled conditions on a specified government test
course. For example, a tire graded 150 would wear one and a half
(I 1/2)
times as well on the government course as a tire graded 100. The relative
performance of tires depends upon the actual conditions
of their use,
however, and may depart significantly from the norm due to variations
in
driving habits, service practices and differences in road characteristics and
climate.
Traction - A, B, C
The traction grades. from highest to lowest are: A, B, and C. They represent
the tire’s ability to stop on wet pavement as measured under controlled
conditions on specified government test surfaces
of asphalt and concrete. A
tire marked
C may have poor traction performance.
Warning:
The traction grade assigned to this tire is based on braking
(straight-ahead) traction tests and does not include cornering (turning)
traction.
Temperature - A, 6, C
The temperature grades are A (the highest), B, and C, representing the tire’s
resistance to the generation
of heat and its ability to dissipate heat when
tested under controlled conditions on
a specified indoor laboratory test
wheel. Sustained high temperature can cause
the material of the tire to
degenerate and reduce
tire life, and excessive temperature can lead to
sudden tire fdilure. The grade
C corresponds to a level of performance
which all passenger car tires must meet under the Federal Motor Vehicle
Safety Standard
No. 109. Grades B and A represent higher levels of
performance on the laboratory test wheel than the minimum required
by
law.
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