1999 GMC JIMMY parking brake

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7-44
Parking Brake and Automatic Transmission
PARK (P) Mechanism Check
CAUTION:
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged. Make
sure there is room in front of your vehicle in case
it begins to roll. Be ready to apply the regular
brake at once should the vehicle begin to move.
Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake, set the
parking brake.

To check the parking brake's holding ability:
With the engine running and transmission in
NEUTRAL (N), slowly remove foot pressure from
the regular brake pedal. Do this until the vehicle is
held by the parking brake only.

To check the PARK (P) mechanism's holding ability:
With the engine running, shift to PARK (P). Then
release all brakes.
Underbody Flushing Service
At least every spring, use plain water to flush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.

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7-46 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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7-47
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.
Hydraulic Clutch
SystemHydraulic Clutch Fluid (GM Part
No. 12345347 or equivalent
DOT
-3 Brake Fluid).
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).
Manual
TransmissionSynchromesh Transmission Fluid
(GM Part No. 12345349
or equivalent).
Automatic
TransmissionDEXRON
-III Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant,
Superlube
(GM Part
No. 12346241 or equivalent).

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9-2
BBB Auto Line 8-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Better Business Bureau Mediation 8-4 . . . . . . . . . . . . . . . . . . .
Blizzard, Driving In 4-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Fluid 6-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake, Parking 2-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake System Warning Light 2-79 . . . . . . . . . . . . . . . . . . . . . .
Brakes
Adjustment 6
-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Anti-Lock 4-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Master Cylinder 6-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pedal Travel 6-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing System Parts 6-33 . . . . . . . . . . . . . . . . . . . . . . . .
Trailer 4-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wear 6-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake-Transmission Shift Interlock Check 7-43 . . . . . . . . . . .
Braking 4-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Braking in Emergencies 4-8 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Break-In, New Vehicle 2-16 . . . . . . . . . . . . . . . . . . . . . . . . . .
Brightness Control 2-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BTSI Check 7-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bulb Replacement 6-34, 6-65 . . . . . . . . . . . . . . . . . . . . . . . . .
Canadian Roadside Assistance 8-8 . . . . . . . . . . . . . . . . . . . .
Capacities and Specifications 6-65 . . . . . . . . . . . . . . . . . . . . . .
Carbon Monoxide 2-9, 2-38, 4-40, 4-51 . . . . . . . . . . . . . . . .
Care of Your Cassette Tape Player 3-42 . . . . . . . . . . . . . . . . . .
Cargo Cover 2-63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cargo Tie Downs 2-63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Center Front Passenger Position 1-30 . . . . . . . . . . . . . . . . . . . Certification/Tire Label 4
-42 . . . . . . . . . . . . . . . . . . . . . . . . . .
Chains
Safety 4
-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire 6-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing a Flat Tire 5-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging System Light 2-77 . . . . . . . . . . . . . . . . . . . . . . . . . .
Check Gages Light 2-85 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Your Restraint Systems 1-56 . . . . . . . . . . . . . . . . . .
Chemical Paint Spotting 6-56 . . . . . . . . . . . . . . . . . . . . . . . . . .
Child Restraints 1-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Center Seat Positions 1-50 . . . . . . . . . . . . . . . . . . . . . . . . . .
Securing in a Rear Outside Seat Position 1-48 . . . . . . . . . . .
Securing in the Right Front Seat Position 1-50 . . . . . . . . . .
Top Strap 1-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Where Not to Put 1-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Where to Put 1-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cigarette Lighter 2-65 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Breakers and Fuses 6-59 . . . . . . . . . . . . . . . . . . . . . . .
Cleaner, Air 6-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning
Aluminum Wheels 6
-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior Lamps and Lenses 6-54 . . . . . . . . . . . . . . . . . . . . .
Fabric 6-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glass 6-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inside of Your Vehicle 6-50 . . . . . . . . . . . . . . . . . . . . . . . . .
Instrument Panel 6-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior Plastic Components 6-52 . . . . . . . . . . . . . . . . . . . . .
Leather 6-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outside of Your Vehicle 6-53 . . . . . . . . . . . . . . . . . . . . . . . .
Stains 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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9-8
Outside Mirror
Convex 2-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Adjust 2-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Remote Control 2-54 . . . . . . . . . . . . . . . . . . . . . . . . .
Overhead Console 2-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overheating Engine 5-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Owner Checks and Services 7-40 . . . . . . . . . . . . . . . . . . . . . . .
Owner Publications 8-12, 8-13 . . . . . . . . . . . . . . . . . . . . . . . .
Paint Spotting, Chemical 6-56 . . . . . . . . . . . . . . . . . . . . . . . .
Park 2-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shifting Into 2-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shifting Out of 2-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking
At Night 2
-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake 2-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Mechanism Check 7-44 . . . . . . . . . . . . . . . . . . . . . . .
Lots 2-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On Hills with a Trailer 4-54 . . . . . . . . . . . . . . . . . . . . . . . . .
Over Things That Burn 2-38 . . . . . . . . . . . . . . . . . . . . . . . .
Your Vehicle, Manual Transmission 2-37 . . . . . . . . . . . . . .
Passing 4-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Passlock
2-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Payload 4-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Periodic Maintenance Inspections 7-45 . . . . . . . . . . . . . . . . . .
Power
Accessory Outlets 2
-67 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door Locks 2-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lumbar Controls 1
-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Control Mirror 2-54 . . . . . . . . . . . . . . . . . . . . . . . .
Seat 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering 4-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering Fluid 6-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windows 2-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pregnancy, Use of Safety Belts 1-23 . . . . . . . . . . . . . . . . . . . .
Problems on the Road 5-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Publications, Service and Owner 8-12, 8-13 . . . . . . . . . . . . . .
Radiator, Adding Coolant 5-16 . . . . . . . . . . . . . . . . . . . . . . .
Radiator Pressure Cap 6-24 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radio Reception 3-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radios
AM
-FM Stereo 3-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cassette Tape Player 3-12, 3-15, 3-20 . . . . . . . . . . . . . . . .
Cassette Tape Player Care 3-42, 7-40 . . . . . . . . . . . . . . . . .
Compact Disc Player 3-24, 3-28 . . . . . . . . . . . . . . . . . . . . .
Compact Disc Player Care 3-43 . . . . . . . . . . . . . . . . . . . . . .
Remote Cassette Player 3-32 . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Clock 3-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theft-Deterrent Feature 3-37 . . . . . . . . . . . . . . . . . . . . . . . .
Rain, Driving 4-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RAP 2-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear
Axle 6
-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door Security Locks 2-5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Belt Comfort Guides 1-35 . . . . . . . . . . . . . . . . . . . . .

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9-11
Wear Indicators 6-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
When It's Time for New 6-44 . . . . . . . . . . . . . . . . . . . . . . .
Top Strap 1-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Torque Lock 2-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Torque, Wheel Nut 5-28, 6-65 . . . . . . . . . . . . . . . . . . . . . . . . .
Tow/Haul Mode 4-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tow/Haul Selector Switch 2-24 . . . . . . . . . . . . . . . . . . . . . . . .
Towing a Trailer 4-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Towing, Recreational Vehicle 4-40 . . . . . . . . . . . . . . . . . . . . .
Towing Your Vehicle 5-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trailer
Brakes 4
-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driving on Grades 4-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driving with a Trailer 4-51 . . . . . . . . . . . . . . . . . . . . . . . . . .
Hitches 4-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance When Towing 4-55 . . . . . . . . . . . . . . . . . . . . .
Parking on Hills 4-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Chains 4-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tongue Weight 4-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total Weight on Tires 4-49 . . . . . . . . . . . . . . . . . . . . . . . . . .
Towing 4-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn Signals 4-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weight 4-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring Harness 4-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transfer Case 6-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transfer Case, Automatic 2-29 . . . . . . . . . . . . . . . . . . . . . . . . .
Transfer Case, Electronic 2-27 . . . . . . . . . . . . . . . . . . . . . . . . .
Transmission Fluid
Automatic 6
-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual 6-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Transmitters, Keyless Entry 2
-6 . . . . . . . . . . . . . . . . . . . . . . . .
Transportation, Courtesy 8-8 . . . . . . . . . . . . . . . . . . . . . . . . . .
Trip, Before Leaving 4-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trip Odometer 2-75 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TTY Users 8-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn Signal and Lane Change Signals 2-42 . . . . . . . . . . . . . . .
Turn Signals When Towing a Trailer 4-53 . . . . . . . . . . . . . . . .
Underbody Maintenance 6-56 . . . . . . . . . . . . . . . . . . . . . . . .
Universal Transmitter 2-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessories 2-71 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Erasing Channels 2-71 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 2-70 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Programming 2-69 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rolling Code Openers 2-71 . . . . . . . . . . . . . . . . . . . . . . . . .
Used Replacement Wheels 6-48 . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle
Control 4-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Damage Warnings iv. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions 6
-67 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identification Number 6-58 . . . . . . . . . . . . . . . . . . . . . . . . .
Loading 4-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage 6-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ventilation System 3-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Visors, Sun 2-66 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltmeter 2-78 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .