2001 GMC SIERRA brake fluid

6-41
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.

7-24 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.
Transfer Case and Front Axle
(Four-Wheel Drive) Inspection
Every 12 months or at engine oil change intervals,
check front axle and transfer case and add lubricant
when necessary. A fluid loss could indicate a problem;
check and have it repaired, if needed. On manual
shift transfer case, oil the control lever pivot point.
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. You may need to
have your brakes inspected more often if your driving
habits or conditions result in frequent braking.

7-25
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 starburst
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.
Hydraulic
Clutch SystemHydraulic Clutch Fluid
(GM Part No. 12345347 or
equivalent DOT
-3 brake fluid).
Power Steering
SystemGM Power Steering Fluid
(GM Part No. 1052884
- 1 pint,
1050017
- 1 quart, or equivalent).
Manual
Transmission
(5
-Speed with
Low Gear,
RPO MW3)
GM Goodwrench Synthetic
Manual Transmission Fluid
(GM Part No. 12346190
- 1 qt.)
or equivalent SAE 75W
-85 GL-4
gear oil.
Manual
Transmission
(5
-Speed without
Low Gear,
RPO MG5)
Synchromesh Transmission Fluid
(GM Part No. 12345349
or equivalent).
Manual
Transmission
(6
-Speed)
TranSynd Synthetic Automatic
Transmission Fluid
(GM Part No. 12378515).