
Downloaded from www.Manualslib.com manuals search engine A 50/50 mixture of water and the proper coolant for
your Catera will:
0 Give freezing protection down to -34°F (-37°C).
Give boiling protection up to 265 "F (1 29 " C).
0 Protect against rust and corrosion.
0 Help keep the proper engine temperature.
Let the warning lights and gages work as
they should.
NOTICE:
When adding coolant, it is important that you
use only
DEX-COOL@ (silicate-free) coolant.
If coolant other than DEX-COOL@ is added to
the system, premature engine, heater core or
radiator corrosion may result. In addition, the
engine coolant will require change sooner
-- at
30,000 miles (50 000 km) or 24 months,
whichever occurs first. Damage caused
by the
use of coolant other than DEX-COOL@ is not
covered by your new vehicle warranty.
What to Use
Use a mixture of one-half clean water (preferably
distilled) and one-half
DEX-COOL' coolant which
won't damage aluminum parts.
If you use this mixture,
you don't need to add anything else.
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant mix will. Your vehicle's coolant warning
system is set for the proper coolant mix. With
plain water or the wrong mix, your engine could
get too hot but you wouldn't get the overheat
warning. Your engine could catch fire and you or
others could be burned. Use
a 50/50 mix of clean
water and
DEX-COOL@ coolant.
6-20

Downloaded from www.Manualslib.com manuals search engine NOTICE:
If you use an improper coolant mix, your engine
could overheat and be badly damaged. The
repair cost wouldn't be covered by your
warranty.
Too much water in the mix can freeze
and crack the engine, radiator, heater core and
other parts.
If you have to add coolant more than four times a year,
have your dealer check your cooling system.
NOTICE:
If you use the proper coolant, you don't have to
add extra inhibitors or additives which claim to
improve the system. These can be harmful.
Checking Coolant
The surge tank is located behind the air cleaner on the
passenger's side of the engine.
The cooling system when hot is under a lot of pressure.
If the low coolant warning light on the instrument panel
appears,
you will need to add coolant.
6-21

Downloaded from www.Manualslib.com manuals search engine There are only two reasons why the brake fluid level in the
reservoir might go down. The first is that the brake fluid
goes down to an acceptable level during normal brake
lining wear.
When new linings are put in, the fluid level
goes back up. The other reason is that fluid is leaking out
of the brake system. If it is, you should have your brake
system fixed, since a leak means that sooner or later your
brakes won’t work well, or won’t work at all.
So, it isn’t a good idea to “top off’ your brake fluid.
Adding brake fluid won’t correct a leak. If you add fluid
when your linings are worn, then you’ll have too much
fluid when you get new brake linings.
You should add
(or remove) brake fluid, as necessary, only when work is
done on the brake hydraulic system.
r
If you have too much brake fluid, it can spill on
the engine. The fluid will burn
if the engine is
hot enough. You or others could be burned,
and your vehicle could be damaged. Add brake
fluid only when work
is done on the brake
hydraulic system.
When your brake fluid falls to a low level, your brake
warning light will come on. See “Brake System Warning
Light” in the Index.
What to Add
When you do need brake fluid, use only DOT-3
brake fluid -- such as Delco Supreme 11 @ (GM
Part No. 12377967). Use new brake fluid from a
sealed container only.
Always clean the brake fluid reservoir cap and the area
around the cap before removing it. This will help keep
dirt from entering the reservoir.
0
With the wrong kind of fluid in your brake
system, your brakes may not work well, or they
may not even work at all. This could cause
a
crash. Always use the proper brake fluid.
6-26

Downloaded from www.Manualslib.com manuals search engine Mixing tires could cause you to lose control while
driving.
If you mix tires of different sizes or types
(radial and bias-belted tires), the vehicle may not
handle properly, and you could have a crash. Using tires
of different sizes may also cause
damage to your vehicle. Be sure to use the same
size and type tires on all wheels.
Uniform Tire Quality 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.)
The grades are molded on the sidewalls of most
passenger car tires. The Uniform Tire Quality Grading
system does not apply to deep tread, winter-type snow
tires, space-saver or temporary use spare tires, tires with
nominal rim diameters
of 10 to 12 inches (25 to 30 cm),
or to some limited-production tires.
While the tires available on General Motors passenger
cars and light trucks may vary with respect to these grades,
they must also conform to Federal safety
requirements and additional General Motors Tire
Performance Criteria
(TPC) standards.
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
( 1 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, and 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 (straightahead) traction tests and does not
include cornering (turning) traction.
6-42

Downloaded from www.Manualslib.com manuals search engine Temperature -- A, B, 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 failure.
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
A and B represent higher levels of performance on the
laboratory test wheel than the minimum required by law.
Warning: The temperature grade for this tire is
established for
a tire that is properly inflated and not
overloaded. Excessive speed, underinflation or
excessive loading, either separately or
in combination,
can cause heat buildup and possible tire failure.
Wheel Alignment and Tire Balance
The wheels on your vehicle were aligned and balanced
carefully at the factory to give you the longest tire life
and best overall performance.
Scheduled wheel alignment and wheel balancing are not
needed. However, if you notice unusual tire wear
or
your vehicle pulling one way or the other, the alignment
may need to be reset. If you notice your vehicle
vibrating when driving on a smooth road, your wheels
may need to be rebalanced.
Wheel Replacement
Replace any wheel that is bent, cracked or badly rusted
or corroded. If wheel bolts keep coming loose, the wheel
and wheel bolts should be replaced. If the wheel leaks
air, replace
it (except some aluminum wheels, which can
sometimes be repaired). See your Catera dealer if any of
these conditions exist.
Your dealer will know the kind
of wheel you need.
Each new wheel should have the same load-carrying
capacity, diameter, width, offset and be mounted the
same way
as the one it replaces.
6-43

Downloaded from www.Manualslib.com manuals search engine Tire Chains
I NOTICE:
Use tire chains only where legal and only when
you must. Use only
SAE Class “S” type chains
that are the proper size for your tires. Install
them on the rear tires and tighten them as tightly
as possible with the ends securely fastened. Drive
slowly and follow the chain manufacturer’s
instructions.
If you can hear the chains
contacting your vehicle, stop and retighten them.
If the contact continues, slow down until it stops.
Driving too fast
or spinning the wheels with
chains on will damage your vehicle.
Appearance Care
Remember, cleaning products can be hazardous. Some
are toxic. Others can burst into flames if
you strike a
match or get them on a hot part of the vehicle. Some are
dangerous if you breathe their fumes in a closed space.
When you use anything from a container to clean your
Catera, be sure to follow the manufacturer’s warnings
and instructions. And always open your doors
or
windows when you’re cleaning the inside.
Never use these to clean your vehicle:
0 Gasoline
Benzene
Naphtha
Carbon Tetrachloride
Acetone
Paint Thinner
0 Turpentine
Lacquer Thinner
Nail Polish Remover
They can all be hazardous
-- some more than
others
-- and they can all damage your vehicle, too.
Don’t use any
of these unless this manual says you can.
In many uses, these will damage your vehicle:
Alcohol
Laundry Soap
Bleach
Reducing Agents
6-45

Downloaded from www.Manualslib.com manuals search engine 33 HEATER BLOWER I 34 RR WDO DEFOG I 35PWRSEAT I
WIPER 20 19 18 17 16 15 14 13 12 11 10 9 HIDSEAT ABS FUEL
HORN CLAMP15 CLAMP 15 CIG HZD HTD CLAMP 15a MIRROR CRUISE FRONT PUMP AfT
PWF RADIO PWR AUDIO CLAMP30 HTDSEAT FLASHER CUMPIS 1 8 234567
PESL BAH GUARD All RE4R
Fuse
1
2
3
4
5
6
Usage
RH
and LH Front Side Door Window
Regulator Motor,
LH Front Side Door Window
Switch
Stoplamp Switch
Automatic Transmission Switch and Control
Indicator, Power Steering Control Module,
Hazard Warning Switch
RH and LH Rear Seat Cushion Heater Relay
Transmission Control Module
Sound Processor Amplifier
Fuse
7
8
9
10
11
12
13
14
Usage
RH and LH Rear Side Door Window
Regulator Motor
Headlamp Switch, Turn Signal Switch, Horn
Relay, CD Changer, Multifunction Relay
Module
Windshield Wiper Motor and Relay, Windshield
Wiper and Windshield Washer Switch
Body Control Module (BCM), Auxiliary
Water Pump, Heater and A/C Control, Fan
Control Relays
Heater and A/C Control, RH and
LH Outside
Rearview Mirrors, Outside Remote Control
Rearview Mirror Switch
Hazard Warning Switch, Instrument Cluster,
Data Link Connector (DLC), Stoplamp
Switch, Gage Cluster, Heater and A/C Control
Remote Control Outside Rearview Mirror
Switch, A/C Compressor Relay, Test
Connector, A/C Control Switch
Cellular Telephone, Cigarette Lighter, RH and
LH Windshield Washer Nozzle, Driver and Passenger Heated Seat Switch, Heater and A/C
Control, Heated Outside Rearview Mirror and
Rear Window Defogger Relay
6-58

Downloaded from www.Manualslib.com manuals search engine Instrument Panel Fuse Block (Passenger’s Side)
f I I[: rn
m
PRK LP
RR WDO DEFOG
m
FLASHER HTD MIRROR 7x
HI BEAM LH ALC
Ip LO BEAM
P IZI x
HI BEAM RH HORN x
DRL
Fusemelay
I
I1
I11
IV V
VI
VI1
VI11
IX
X
XI
Usage
High-Beam Headlamp - LH
Automatic Level Control
Heated Rear Window, Heated
Power Mirrors
Hazard Warning Flashers
High-Beam Headlamp
- RH
Horn
Parking Lamps
Low-Beam Headlamps
Daytime Running Lamps
6-60