2004 GMC SIERRA Rear axle

4. Make sure the jack head is positioned so that the
rear axle is resting securely between the grooves
that are on the jack head. Turn the wheel
wrench clockwise to raise the vehicle. Raise the
vehicle far enough off the ground so there is enough
room for the spare tire to ®t under the wheel well. Front Position All Other Models
Rear Position
5-104

(b)Visually inspect front and rear suspension and
steering system for damaged, loose or missing parts,
signs of wear or lack of lubrication. Inspect power
steering lines and hoses for proper hook-up, binding,
leaks, cracks, cha®ng, etc. Visually check constant
velocity joints, rubber boots and axle seals for leaks.
(c)Visually inspect hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
®ttings and clamps; replace with genuine GM parts as
needed. To help ensure proper operation, a pressure test
of the cooling system and pressure cap and cleaning the
outside of the radiator and air conditioning condenser is
recommended at least once a year.
(d)Visually inspect wiper blades for wear or cracking.
Replace blade inserts that appear worn or damaged
or that streak or miss areas of the windshield.
(e)Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages
are working properly. Look for any other loose or
damaged safety belt system parts. If you see anything
that might keep a safety belt system from doing its
job, have it repaired. Have any torn or frayed safety belts
replaced. Also look for any opened or broken air bag
coverings, and have them repaired or replaced. (The air
bag system does not need regular maintenance.)
(f)Lubricate all key lock cylinders, body door hinges,
hood latch assembly, secondary latch, pivots, spring
anchor, release pawl, tailgate hinges, tailgatelinkage,
tailgate handle pivot points, latch bolt, fuel door
hinge, locks and folding seat hardware. More frequent
lubrication may be required when exposed to a corrosive
environment. Applying silicone grease on weatherstrips
with a clean cloth will make them last longer, seal
better and not stick or squeak.
(g)Add ¯uid as needed. A ¯uid loss could indicate a
problem; repair as needed. Check vent hose at transfer
case for kinks and proper installation.
(h)Change automatic transmission ¯uid and ®lter if the
vehicle GVWR is over 8600 lbs. or if the vehicle is
mainly driven under one or more of these conditions:
þIn heavy city traffic where the outside temperature
regularly reaches 90ÉF (32ÉC) or higher.
þIn hilly or mountainous terrain.
þWhen doing frequent trailer towing.
þUses such as found in taxi, police or delivery
service.
(i)Drain, ¯ush and re®ll cooling system. See Engine
Coolant on page 5-33for what to use. Inspect hoses.
Clean radiator, condenser, pressure cap and ®ller neck.
Pressure test the cooling system and pressure cap.
6-9

Usage Fluid/Lubricant
Manual
Transmission
(5±Speed
without Low
Gear, RPO
MG5)Synchromesh Transmission Fluid
(GM Part No. U.S. 12345349, in
Canada 10953465).
Manual
Transmission
(6±Speed)TranSyndŸ Synthetic Transmission
Fluid (GM Part No. U.S. 12378515,
in Canada 88900701).
Automatic
TransmissionDEXRON
ž-III Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Floor Shift
LinkageLubriplate Lubricant Aerosol
(GM Part No. U.S. 12346293, in
Canada 992723) or lubricant
meeting requirements of NLGI #2
Category LB or GC-LB.
Usage Fluid/Lubricant
Chassis
LubricationChassis Lubricant (GM Part No.
U.S. 12377985, in Canada
88901242) or lubricant meeting
requirements of NLGI #2, Category
LB or GC-LB.
Front AxleSAE 80W-90 Axle Lubricant
(GM Part No. U.S. 1052271, in
Canada 10950849).
Rear AxleSAE 75W-90 Synthetic Axle
Lubricant (GM Part No. U.S.
12378261, in Canada 10953455)
meeting GM Speci®cation 9986115.
Rear Axle
(Steerable)Synthetic Axle Lubricant; use only
GM Part No. U.S. 12378557, in
Canada 88901362.
Do not add
friction modi®er.
Manual
Transfer CaseDEXRONž-III Automatic
Transmission Fluid.
6-15

Usage Fluid/Lubricant
Automatic
Transfer CaseAUTO-TRAK II Fluid
(GM Part No. U.S. 12378508, in
Canada 10953626).
Front Axle
Propshaft
Spline or
One-Piece
Propshaft
Spline
(Two-Wheel
Drive with
Auto. Trans.)Spline Lubricant, Special Lubricant
(GM Part No. U.S. 12345879, in
Canada 10953511) or lubricant
meeting requirements of
GM 9985830.
Rear Driveline
Center SplineChassis Lubricant (GM Part No.
U.S. 12377985, in Canada
88901242) or lubricant meeting
requirements of NLGI #2, Category
LB or GC-LB.
Hood HingesMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).Usage Fluid/Lubricant
Body Door
Hinge Pins,
Tailgate Hinge
and Linkage,
Folding Seats
and Fuel Door
HingeMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Tailgate Handle
Pivot Points,
Hinges, Latch
Bolt and
LinkageMulti-Purpose Lubricant, Superlube
(GM Part No. U.S 12346241, in
Canada 10953474).
Weatherstrip
ConditioningDielectric Silicone Grease
(GM Part No. U.S. 12345579, in
Canada 992887).
Weatherstrip
SqueaksSynthetic Grease with Te¯on,
Superlube (GM Part No. U.S.
12371287, in Canada 10953437).
6-16

Fluid (cont.)
Windshield Washer......................................5-46
FM Stereo....................................................3-129
Fog Lamps....................................................3-17
Folding the Rear Seat....................................... 1-9
Following Distance..........................................4-92
Four-Wheel Drive....................................2-35, 5-60
Four-Wheel-Drive Light....................................3-53
Front Axle......................................................5-61
Front Axle Locking Feature...............................2-35
Front Reading Lamps......................................3-19
Front Storage Area.........................................2-67
Fuel............................................................... 5-4
Additives...................................................... 5-6
California Fuel.............................................. 5-5
Filling a Portable Fuel Container..................... 5-9
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-6
Gage.........................................................3-54
Gasoline Octane........................................... 5-4
Gasoline Speci®cations.................................. 5-5
Low Warning Light.......................................3-54
Fuel Information Button....................................3-58
FUEL LEVEL LOW.........................................3-68
Fuses
Fuses and Circuit Breakers.........................5-126
Windshield Wiper.......................................5-126G
Gage
Engine Coolant Temperature.........................3-46
Fuel..........................................................3-54
Oil Pressure...............................................3-52
Speedometer..............................................3-35
Tachometer.................................................3-35
Transmission Temperature.............................3-47
Voltmeter Gage...........................................3-42
Gasoline
Octane........................................................ 5-4
Speci®cations............................................... 5-5
Getting Familiar with Off-Road Driving................4-24
Glove Box.....................................................2-66
GM Mobility Program for Persons with
Disabilities.................................................... 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-8
Headlamp High/Low-Beam Changer.................... 3-9
Headlamps....................................................5-64
Bulb Replacement.......................................5-64
7

K
Key Release Button (Manual Transmission)........2-23
KEYFOB X BATTERY LOW.............................3-68
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Lamps
Exterior......................................................3-14
Interior.......................................................3-19
Lamps On Reminder.......................................3-16
Lap Belt........................................................1-26
Lap-Shoulder Belt...........................................1-16
LATCH System
Child Restraints...........................................1-48
Securing a Child Restraint Designed for the
LATCH System................................1-50, 1-51
Latches, Seatback............................................ 1-8
Leaving Your Vehicle With
the Engine Running (Automatic
Transmission Only)......................................2-50
LEFT REAR DOOR AJAR (Crew Cab)...............3-69
Light
Air Bag Off .................................................3-37
Air Bag Readiness.......................................3-36
Anti-Lock Brake System Warning...................3-45
Battery Warning..........................................3-42Light (cont.)
Brake System Warning.................................3-43
Cruise Control.............................................3-53
Four-Wheel-Drive.........................................3-53
Low Fuel Warning.......................................3-54
Malfunction Indicator....................................3-49
Passenger Air Bag Status Indicator................3-40
Safety Belt Reminder...................................3-36
Tow/Haul Mode...........................................3-53
Traction Off................................................3-45
Up-Shift.....................................................3-43
Listening to a DVD..............................3-101, 3-115
Loading Your Vehicle.......................................4-57
Loading Your Vehicle for Off-Road Driving..........4-23
Locking Rear Axle...........................................4-12
Lockout Protection..........................................2-13
Lock-Out Switch.............................................2-18
Locks
Delayed Locking..........................................2-10
Door........................................................... 2-8
Lockout Protection.......................................2-13
Power Door.................................................. 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-12
Loss of Control...............................................4-18
LOW COOLANT LEVEL..................................3-69
Low Fuel Warning Light...................................3-54
Lumbar
Power Controls............................................. 1-5
9

PASSENGER DOOR AJAR..............................3-69
Passenger Sensing System..............................1-81
Passing.................................................4-17, 4-92
Passlock
ž......................................................2-21
Payload.........................................................4-63
Personalization Button.....................................3-59
Pickup Conversion to Chassis Cab....................4-70
Plan Ahead When Possible................................ 7-8
Playing a Cassette Tape..................................3-96
Playing a CD...............................3-85, 3-99, 3-110
Playing a Speci®c Loaded CD.........................3-111
Playing the Radio.................3-74, 3-78, 3-89, 3-103
Power
Accessory Outlets........................................3-20
Door Locks.................................................. 2-9
Electrical System.......................................5-126
Lumbar Controls........................................... 1-5
Seat............................................................ 1-4
Steering Fluid.............................................5-45
Windows....................................................2-17
Power Steering...............................................4-12
Power Winches.............................................4-101
Programmable Automatic Door Locks.................2-10
Q
QUADRASTEERŸ..........................................4-14
Questions and Answers About Safety Belts.........1-15
R
Radio Data System (RDS)..............3-77, 3-88, 3-102
Radio Messages.............................3-76, 3-83, 3-94
Radios..........................................................3-73
AM-FM Radio.............................................3-74
Care of Your Cassette Tape Player...............3-129
Care of Your CD and DVD Player................3-131
Care of Your CDs and DVDs.......................3-130
Radio with Cassette and CD.........................3-88
Radio with CD............................................3-77
Radio with Six-Disc CD..............................3-102
Rear Seat Audio........................................3-126
Setting the Time for Radios with Radio Data
Systems (RDS)........................................3-74
Setting the Time for Radios without Radio
Data Systems (RDS)................................3-74
Theft-Deterrent..........................................3-127
Understanding Reception............................3-129
RANGE SHIFT INHIBITED (Allison
Transmission
žOnly).....................................3-69
RDS Messages.............................3-82, 3-93, 3-107
Rear Axle......................................................5-59
Locking......................................................4-12
Rear Door Security Locks................................2-12
Rear Doors....................................................2-13
Rear Safety Belt Comfort Guides......................1-30
Rear Seat Audio Controls...............................3-126
Rear Seat Audio (RSA)..................................3-126
12