brake fluid GMC ENVOY 1999 User Guide

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6-26
NOTICE:

When using concentrated washer fluid,
follow the manufacturer's instructions for
adding water.

Don't mix water with ready
-to-use washer
fluid. Water can cause the solution to freeze
and damage your washer fluid tank and
other parts of the washer system. Also,
water doesn't clean as well as washer fluid.

Fill your washer fluid tank only
three
-quarters full when it's very cold. This
allows for expansion if freezing occurs,
which could damage the tank if it is
completely full.

Don't use engine coolant (antifreeze) in
your windshield washer. It can damage
your washer system and paint.
Brakes
Brake Fluid
Your brake master cylinder reservoir is here. It is filled
with DOT
-3 brake fluid.
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6-27
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 ªtop offº 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.
CAUTION:
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.
Refer to the Maintenance Schedule to determine when to
check your brake fluid. See ªPeriodic Maintenance
Inspectionsº in the Index.
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6-28
Checking Brake Fluid
You can check the brake
fluid without taking off
the cap.
Just look at the brake fluid reservoir. The fluid level
should be above MIN. If it isn't, have your brake system
checked to see if there is a leak.
After work is done on the brake hydraulic system,
make sure the level is above the MIN but not over the
MAX mark.What to Add
When you do need brake fluid, use only DOT-3 brake
fluid. Refer to ªRecommended Fluids and Lubricantsº
in the Index. 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.
CAUTION:
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.
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6-29
NOTICE:

Using the wrong fluid can badly damage
brake system parts. For example, just a few
drops of mineral
-based oil, such as engine
oil, in your brake system can damage brake
system parts so badly that they'll have to be
replaced. Don't let someone put in the
wrong kind of fluid.

If you spill brake fluid on your vehicle's
painted surfaces, the paint finish can be
damaged. Be careful not to spill brake fluid
on your vehicle. If you do, wash it off
immediately. See ªAppearance Careº in
the Index.
Brake Wear
Your vehicle has four-wheel disc brakes.
Disc brake pads have built
-in wear indicators that make a
high
-pitched warning sound when the brake pads are worn
and new pads are needed. The sound may come and go or
be heard all the time your vehicle is moving (except when
you are pushing on the brake pedal firmly).
CAUTION:
The brake wear warning sound means that soon
your brakes won't work well. That could lead to
an accident. When you hear the brake wear
warning sound, have your vehicle serviced.
NOTICE:
Continuing to drive with worn-out brake pads
could result in costly brake repair.
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Short Trip/City Scheduled Maintenance
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7-7
The services shown in this schedule up to 100,000 miles
(166 000 km) should be performed after 100,000 miles
(166 000 km) at the same intervals. The services shown
at 150,000 miles (240 000 km) should be performed at
the same interval after 150,000 miles (240 000 km).
See ªOwner Checks and Servicesº and ªPeriodic
Maintenance Inspectionsº following.
Footnotes
 The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to the
completion of the vehicle's useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the maintenance
be recorded.# Lubricate the front suspension, ball joints, steering
linkage, parking brake cable guides, propshaft splines,
universal joints and brake pedal springs.
+ A good time to check your brakes is during tire
rotation. See ªBrake System Inspectionº under ªPeriodic
Maintenance Inspectionsº in Part C of this schedule.
** Drive axle service (see ªRecommended Fluids and
Lubricantsº in the Index for proper lubricant to use):

Locking Differential -- Drain fluid and refill at first
engine oil change. At subsequent oil changes, check
fluid level and add fluid as needed. If driving in
dusty areas or towing a trailer, drain fluid and refill
every 15,000 miles (25 000 km).

More frequent lubrication may be required for
heavy
-duty or off-road use.
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Long Trip/Highway Scheduled Maintenance
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7-27
The services shown in this schedule up to 100,000 miles
(166 000 km) should be performed after 100,000 miles
(166 000 km) at the same intervals. The services shown
at 150,000 miles (240 000 km) should be performed at
the same interval after 150,000 miles (240 000 km).
See ªOwner Checks and Servicesº and ªPeriodic
Maintenance Inspectionsº following.
Footnotes
 The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to the
completion of the vehicle's useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the maintenance
be recorded.# Lubricate the front suspension, ball joints, steering
linkage, parking brake cable guides, propshaft splines,
universal joints and brake pedal springs.
+ A good time to check your brakes is during tire
rotation. See ªBrake System Inspectionº under ªPeriodic
Maintenance Inspectionsº in Part C of this schedule.
** Drive axle service (see ªRecommended Fluids and
Lubricantsº in the Index for proper lubricant to use):

Locking Differential -- Drain fluid and refill at first
engine oil change. At subsequent oil changes, check
fluid level and add fluid as needed.
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7-44 Throttle System Inspection
Inspect the throttle system for interference or binding,
and for damaged or missing parts. Replace parts as
needed. Replace any components that have high effort
or excessive wear. Do not lubricate accelerator and
cruise control cables.
Drive Axle Service
Check rear/front axle fluid level and add as needed.
Check constant velocity joints and axle seals for leaking.
Transfer Case (Four-Wheel Drive)
Inspection
Every 12 months or at oil change intervals, check front
axle and transfer case and add lubricant when necessary.
Check vent hose at transfer case for kinks and proper
installation. More frequent lubrication may be required
on off
-road use.
Brake System Inspection
Inspect the complete system. Inspect brake lines and
hoses for proper hook
-up, binding, leaks, cracks,
chafing, etc. Inspect disc brake pads for wear and rotors
for surface condition. Inspect other brake parts,
including calipers, parking brake, etc. Check parking
brake adjustment. You may need to have your brakes
inspected more often if your driving habits or conditions
result in frequent braking.
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7-45
Part D: Recommended Fluids
and Lubricants
NOTE: Fluids and lubricants identified below by name,
part number or specification may be obtained from
your dealer.
USAGE
FLUID/LUBRICANT
Engine OilEngine Oil with the American
Petroleum Institute Certified For
Gasoline Engines ªStarburstº
symbol of the proper viscosity. To
determine the preferred viscosity
for your vehicle's engine, see
ªEngine Oilº in the Index.
Engine Coolant50/50 mixture of clean, drinkable
water and use only GM
Goodwrench

DEX-COOL
or
Havoline
DEX-COOL

Coolant. See ªEngine Coolantº in
the Index.
Hydraulic Brake
SystemDelco Supreme 11
Brake Fluid
(GM Part No. 12377967 or
equivalent DOT
-3 Brake Fluid).
USAGEFLUID/LUBRICANT
Windshield
Washer SolventGM Optikleen
Washer Solvent
(GM Part No. 1051515)
or equivalent.
Parking Brake
Cable GuidesChassis Lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements of
NLGI # 2, Category LB
or GC
-LB.
Power Steering
SystemGM Power Steering Fluid (GM
Part No. 1052884
- 1 pint,
1050017
- 1 quart, or equivalent).
Automatic
TransmissionDEXRON
-III Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant,
Superlube
(GM Part
No. 12346241 or equivalent).
Chassis
LubricationChassis Lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements of
NLGI # 2, Category LB or
GC
-LB.
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9-yellowblue
9-1
Section 9 Index
A
ccessory Inflator 2-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessory Power Outlets 2-57 . . . . . . . . . . . . . . . . . . . . . . . . .
Adding Equipment to the Outside of Your Vehicle 6-3 . . . . . .
Adding Sound Equipment 3-25 . . . . . . . . . . . . . . . . . . . . . . . .
Add-On Equipment 4-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Bag
Adding Equipment 1
-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How Does it Restrain 1-25 . . . . . . . . . . . . . . . . . . . . . . . . . .
How it Works 1-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Location 1-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Readiness Light 1-22, 2-67 . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing 1-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System 1-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What Makes it Inflate 1-25 . . . . . . . . . . . . . . . . . . . . . . . . . .
What You See After it Inflates 1-25 . . . . . . . . . . . . . . . . . . .
When Should it Inflate 1-24 . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner 6-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning 3-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning Refrigerants 6-61 . . . . . . . . . . . . . . . . . . . . .
Alignment and Balance, Tire 6-43 . . . . . . . . . . . . . . . . . . . . . .
Aluminum Wheels, Cleaning 6-51 . . . . . . . . . . . . . . . . . . . . . .
Antenna, Fixed 3-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Anti-Lock Brake System Warning Light 2-69, 4-7 . . . . . . . . .
Anti-Lock Brakes 4-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appearance Care 6-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appearance Care and Materials 6-53 . . . . . . . . . . . . . . . . . . . .
Arbitration Program 8-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Armrest, Storage 2
-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ashtrays 2-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio Steering Wheel Controls 3-23 . . . . . . . . . . . . . . . . . . . .
Audio Systems 3-8, 3-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Headlamp System 2-40 . . . . . . . . . . . . . . . . . . . . . .
Automatic Transmission
Check 7
-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid 6-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 2-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Park Mechanism Check 7-42 . . . . . . . . . . . . . . . . . . . . . . . .
Shifting 2-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting Your Engine 2-16 . . . . . . . . . . . . . . . . . . . . . . . . . .
Axle
Front 6
-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Locking Rear 2-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear 6-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Backglass Wiper, Blade Replacement 6-37 . . . . . . . . . . . . . .
Battery 6-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charge Light 2-67 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jump Starting 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement, Keyless Entry 2-7 . . . . . . . . . . . . . . . . . . . . .
Run-Down Protection 2-43 . . . . . . . . . . . . . . . . . . . . . . . . .
Warnings 5-3, 5-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BBB Auto Line 8-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Better Business Bureau Mediation 8-4 . . . . . . . . . . . . . . . . . . .
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9-2
Blizzard 4-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blizzard, Driving In 4-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Fluid 6-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake, Parking 2-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake System Warning Light 2-68 . . . . . . . . . . . . . . . . . . . . . .
Brakes
Adjustment 6
-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Master Cylinder 6-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pedal Travel 6-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing System Parts 6-30 . . . . . . . . . . . . . . . . . . . . . . . .
Wear 6-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake-Transmission Shift Interlock Check 7-41 . . . . . . . . . . .
Braking 4-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Braking in Emergencies 4-9 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Break-In, New Vehicle 2-14 . . . . . . . . . . . . . . . . . . . . . . . . . .
Brightness Control 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BTSI Check 7-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bulb Replacement 6-31, 6-60 . . . . . . . . . . . . . . . . . . . . . . . . .
Canadian Roadside Assistance 8-7 . . . . . . . . . . . . . . . . . . . .
Capacities and Specifications 6-60 . . . . . . . . . . . . . . . . . . . . . .
Carbon Monoxide 2-9, 2-30, 4-39, 4-50 . . . . . . . . . . . . . . . .
Care of Your Cassette Tape Player 3-25 . . . . . . . . . . . . . . . . . .
Cargo Security Shade 2-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cargo Tie Downs 2-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cellular Telephone 2-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Center Rear Passenger Position 1-34 . . . . . . . . . . . . . . . . . . . .
Certification/Tire Label 4-41 . . . . . . . . . . . . . . . . . . . . . . . . . .
Chains
Safety 4
-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire 6-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing a Flat Tire 5-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging System Light 2-67 . . . . . . . . . . . . . . . . . . . . . . . . . . Check Gages Light 2
-75 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Your Restraint Systems 1-52 . . . . . . . . . . . . . . . . . .
Chemical Paint Spotting 6-52 . . . . . . . . . . . . . . . . . . . . . . . . . .
Child Restraints 1-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Center Seat Position 1-46 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Different Types 1-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Securing in a Rear Outside Seat Position 1-44 . . . . . . . . . . .
Securing in the Right Front Seat Position 1-46 . . . . . . . . . .
Top Strap 1-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Where Not to Put 1-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Where to Put 1-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cigarette Lighter 2-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Breakers and Fuses 6-55 . . . . . . . . . . . . . . . . . . . . . . .
Cleaner, Air 6-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning
Aluminum Wheels 6
-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior Lamps and Lenses 6-50 . . . . . . . . . . . . . . . . . . . . .
Fabric 6-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glass 6-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inside of Your Vehicle 6-46 . . . . . . . . . . . . . . . . . . . . . . . . .
Instrument Panel 6-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior Plastic Components 6-48 . . . . . . . . . . . . . . . . . . . . .
Leather 6-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outside of Your Vehicle 6-50 . . . . . . . . . . . . . . . . . . . . . . . .
Stains 6-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tires 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vinyl 6-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weatherstrips 6-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheels 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield, Backglass and Wiper Blades 6-49 . . . . . . . . . .
Wood Panels 6-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Climate Control System 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clock, Setting 3-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Comfort Controls 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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