2004 GMC SAFARI automatic transmission

At Least Twice a Year
Restraint System Check
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.)
Wiper Blade Check
Inspect wiper blades for wear or cracking. Replace
blade inserts that appear worn or damaged or that
streak or miss areas of the windshield. Also see
Cleaning the Outside of Your Vehicle on page 5-96.
Spare Tire Check
At least twice a year, after the monthly ination check of
the spare tire determines that the spare is inated to
the correct tire ination pressure, make sure that
the spare tire is stored securely. Push, pull, and then try
to rotate or turn the tire. If it moves, use the wheel
wrench to tighten the cable. SeeChanging a Flat Tire
on page 5-80.
Weatherstrip Lubrication
Silicone grease on weatherstrips will make them last
longer, seal better, and not stick or squeak. Apply
silicone grease with a clean cloth. During very cold,
damp weather more frequent application may be
required. SeePart D: Recommended Fluids and
Lubricants on page 6-32.
Automatic Transmission Check
Check the transmission uid level; add if needed. See
Automatic Transmission Fluid on page 5-23. A uid loss
may indicate a problem. Check the system and repair
if needed.
6-26

Automatic Transmission Shift Lock
Control System Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough room
around the vehicle. It should be parked on a level
surface.
2. Firmly apply the parking brake. SeeParking Brake
on page 2-24if necessary.
Be ready to apply the regular brake immediately if
the vehicle begins to move.3. With the engine off, turn the key to the RUN
position, but do not start the engine. Without
applying the regular brake, try to move the shift
lever out of PARK (P) with normal effort. If the shift
lever moves out of PARK (P), your vehicle needs
service.Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition key to LOCK in each shift lever position.
The key should turn to LOCK only when the
shift lever is in PARK (P).
The key should come out only in LOCK.
6-28

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 the parking brake followed by the regular
brake.
Underbody Flushing Service
At least every spring, use plain water to ush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.
6-29

Part D: Recommended Fluids and
Lubricants
Fluids and lubricants identied below by name, part
number or specication may be obtained from your
dealer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets GM
Standard GM6094M and displays
the American Petroleum Institute
Certied for Gasoline Engines
starburst symbol. To determine the
proper viscosity for your vehicle’s
engine, seeEngine Oil on
page 5-13.
Engine Coolant50/50 mixture of clean, drinkable
water and use only
DEX-COOL
®Coolant. SeeEngine
Coolant on page 5-26.
Hydraulic Brake
SystemDelco Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Windshield
Washer SolventGM Optikleen
®Washer Solvent.
Usage Fluid/Lubricant
Parking Brake
Cable GuidesChassis Lubricant (GM Part No.
U.S. 12377985, in Canada
88901242) or lubricant meeting
requirements of NLGI #2, Category
LB or GC-LB.
Power Steering
SystemGM Power Steering Fluid (GM Part
No. U.S. 89021184, in Canada
89021186).
Automatic
TransmissionDEXRON
®-III Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
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 Wheel
BearingsWheel bearing lubricant meeting
requirements of NLGI #2, Category
GC or GC-LB (GM Part No. U.S.
1051344, in Canada 993037).
6-32

A
Accessory Power Outlets.................................3-16
Activating the Theft-Deterrent Feature................3-48
Adding Equipment to Your Air Bag-Equipped
Vehicle.......................................................1-71
Adding Washer Fluid.......................................5-39
Additional Program Information........................... 7-9
Additives, Fuel................................................. 5-6
Add-On Equipment..........................................4-34
Adjusting the Speakers (Balance/Fade)......3-40, 3-43
Air Bag
Readiness Light..........................................3-26
Air Bag System..............................................1-63
Adding Equipment to Your Air Bag-Equipped
Vehicle...................................................1-71
How Does an Air Bag Restrain?....................1-68
Servicing Your Air Bag-Equipped Vehicle.........1-70
What Makes an Air Bag Inate?....................1-67
What Will You See After an Air Bag Inates?......1-68
When Should an Air Bag Inate?...................1-67
Where Are the Air Bags?..............................1-65
Air Cleaner/Filter, Engine.................................5-22
Airbag Sensing and Diagnostic Module (SDM)....7-10
All Overseas Locations...................................... 7-5
All-Wheel Drive...............................................5-50
All-Wheel Drive (AWD) System.........................2-24
All-Wheel-Drive Service Light............................3-35
AM ...............................................................3-50
AM-FM Radio.................................................3-39Antenna, Fixed Mast.......................................3-50
Anti-lock Brake System..................................... 4-7
Anti-Lock Brake, System Warning Light..............3-29
Appearance Care............................................5-93
Care of Safety Belts....................................5-96
Chemical Paint Spotting...............................5-99
Cleaning the Inside of Your Vehicle................5-93
Cleaning the Outside of Your Vehicle..............5-96
Finish Damage............................................5-98
Sheet Metal Damage...................................5-98
Underbody Maintenance...............................5-99
Vehicle Care/Appearance Materials................5-99
Weatherstrips..............................................5-96
Ashtrays........................................................3-17
Audio System(s).............................................3-38
AM-FM Radio.............................................3-39
Care of Your CD Player...............................3-50
Care of Your CDs........................................3-50
Fixed Mast Antenna.....................................3-50
Radio with CD............................................3-41
Rear Seat Audio (RSA)................................3-46
Setting the Time for Radios with HR and MN
Buttons...................................................3-38
Setting the Time for Radios with the Set
Button....................................................3-38
Theft-Deterrent Feature................................3-47
Understanding Radio Reception.....................3-50
Automatic Headlamp System............................3-13
Automatic Transmission
Fluid..........................................................5-23
1

Automatic Transmission (cont.)
Operation...................................................2-21
Automatic Transmission Check..........................6-26
Automatic Transmission Shift Lock Control
System Check.............................................6-28
B
Backing Up....................................................4-42
Battery..........................................................5-44
Battery Replacement......................................... 2-5
Battery Run-Down Protection............................3-16
Before Leaving on a Long Trip.........................4-21
Bench Seat............................................1-11, 1-58
Body Lubrication Service..................................6-27
Brake
Parking......................................................2-24
System Inspection.......................................6-31
System Warning Light..................................3-28
Brake Adjustment............................................5-43
Brake Fluid....................................................5-40
Brake Pedal Travel.........................................5-43
Brake Wear...................................................5-43
Brakes..........................................................5-40
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-9
Break-In, New Vehicle.....................................2-17
Bucket Seats, Rear.........................................1-12Bulb Replacement...........................................5-53
Front Turn Signal Lamps..............................5-57
Halogen Bulbs............................................5-53
Headlamps.................................................5-53
Replacement Bulbs......................................5-59
Taillamps....................................................5-58
Buying New Tires...........................................5-75C
California Fuel.................................................. 5-5
Canada........................................................... 7-5
Canadian Owners................................................ ii
Canadian Roadside Assistance........................... 7-8
Canceling the Sliding Door
Security Lock..............................................2-10
Capacities and Specications..........................5-109
Carbon Monoxide...........................4-24, 4-35, 2-28
Care of
Safety Belts................................................5-96
Your CD Player...........................................3-50
Your CDs ...................................................3-50
Cargo Van Models..........................................1-50
Cargo Vans...........................................1-41, 1-48
CD Messages................................................3-45
Center Passenger Position, Safety Belts.............1-27
Chains, Tires..................................................5-78
Charging System Light....................................3-27
2

Electrical System (cont.)
Windshield Wiper Fuses.............................5-102
Emissions Inspection and Maintenance
Programs...................................................3-33
Engine
Air Cleaner/Filter.........................................5-22
Battery.......................................................5-44
Check and Service Engine Soon Light............3-30
Coolant......................................................5-26
Coolant Heater............................................2-20
Coolant Temperature Gage...........................3-30
Cooling System Inspection............................6-30
Cover........................................................5-18
Drive Belt Routing......................................5-112
Engine Compartment Overview......................5-12
Exhaust.....................................................2-28
Fan Noise..................................................5-37
Oil .............................................................5-13
Overheating................................................5-29
Starting......................................................2-19
Engine Coolant Level Check.............................6-25
Engine Oil Additives........................................5-16
Engine Oil Level Check...................................6-25
Entry Lighting.................................................3-15
Erasing HomeLink
®Buttons..............................2-34
Event Data Records (EDR)..............................7-10
Except Cargo Vans.................................1-38, 1-47
Exit Lighting...................................................3-15Express-Down Window....................................2-15
Extender, Safety Belt.......................................1-34
Exterior Lamps...............................................3-12
F
Filter
Engine Air Cleaner......................................5-22
Finding a Station....................................3-39, 3-41
Finish Care....................................................5-97
Finish Damage...............................................5-98
Fixed Mast Antenna........................................3-50
Flash-to-Pass................................................... 3-7
Flat Tire........................................................5-79
Flat Tire, Changing.........................................5-80
Fluid
Automatic Transmission................................5-23
Power Steering...........................................5-38
Windshield Washer......................................5-39
FM ...............................................................3-50
Following Distance..........................................4-42
Footnotes................................................6-7, 6-18
Front Axle......................................................5-52
Fuel............................................................... 5-4
Additives...................................................... 5-6
California Fuel.............................................. 5-5
Filling a Portable Fuel Container..................... 5-9
5

Parking (cont.)
Parking Brake and Automatic Transmission
Park (P) Mechanism Check...........................6-29
Parking on Hills..............................................4-43
Part A - Scheduled Maintenance Services............ 6-4
Part B - Owner Checks and Services................6-25
Part C - Periodic Maintenance Inspections..........6-30
Part D - Recommended Fluids and Lubricants....6-32
Part E - Maintenance Record...........................6-34
Passenger Van Models....................................1-51
Passing.................................................4-12, 4-42
Passlock
®......................................................2-16
Payload.........................................................4-34
Plan Ahead When Possible................................ 7-8
Playing a CD.................................................3-43
Playing the Radio...................................3-39, 3-41
Power
Accessory Outlets........................................3-16
Door Locks.................................................. 2-7
Electrical System.......................................5-102
Seat............................................................ 1-3
Steering Fluid.............................................5-38
Windows....................................................2-15
Power Steering................................................ 4-9
Programmable Automatic Door Locks.................. 2-7
Programming the HomeLink
®Transmitter...........2-32
Q
Questions and Answers About Safety Belts.........1-17
R
Radiator Pressure Cap....................................5-28
Radios..........................................................3-38
AM-FM Radio.............................................3-39
Care of Your CD Player...............................3-50
Care of Your CDs........................................3-50
Radio with CD............................................3-41
Rear Seat Audio..........................................3-46
Setting the Time for Radios with HR and MN
Buttons...................................................3-38
Setting the Time for Radios with the Set
Button....................................................3-38
Theft-Deterrent............................................3-47
Understanding Reception..............................3-50
Reading Lamps..............................................2-37
Rear Air Conditioning System...........................3-21
Rear Axle......................................................5-51
Locking........................................................ 4-9
Rear Doors....................................................2-11
Rear Heating System......................................3-21
Rear Safety Belt Comfort Guides......................1-32
10