2004 GMC SIERRA DENALI flat tire

Secondary Latch System
Your vehicle has an underbody mounted tire hoist
assembly equipped with a secondary latch system. It's
designed to stop the spare tire from suddenly falling
off your vehicle. For the secondary latch to work,
the spare must be installed with the valve stem pointing
down. See ªStoring a Flat or Spare Tire, Jack and
Toolsº earlier in this section.
{CAUTION:
Before beginning this procedure read all the
instructions. Failure to read and follow the
instructions could damage the hoist assembly
and you and others could get hurt. Read and
follow the instructions listed below.
To release the spare tire from the secondary latch do
the following:1. Check under the vehicle to see if the cable end is
visible.
2. If the cable is not visible proceed to Step 6.
If it is visible, ®rst try to tighten the cable by turning
the wheel wrench clockwise until you hear two
clicks or feel it skip twice. You cannot overtighten
the cable.
3. Loosen the cable by turning the wrench
counterclockwise three or four turns.
5-92

13. Tilt the retainer at the
end of the cable and
pull it through the
wheel opening. Pull the
tire out from under
the vehicle.
14. If the cable is hanging under the vehicle, turn
the wheel wrench clockwise to raise the cable
back up.
Have the hoist assembly inspected as soon as you can.
You will not be able to store a spare or ¯at tire using
the hoist assembly until it has been replaced.
To continue changing the ¯at tire, see ªRemoving the
Flat Tire and Installing the Spare Tireº earlier in
this section.Spare Tire
Your vehicle, when new, had a fully in¯ated spare tire.
A spare tire may lose air over time, so check its
in¯ation pressure regularly. See
In¯ation - Tire Pressure
on page 5-67andLoading Your Vehicle on page 4-48for information regarding proper tire in¯ation and loading
your vehicle. For instruction on how to remove, install
or store a spare tire, see
Changing a Flat Tire on
page 5-76.
After installing the spare tire on your vehicle, you should
stop as soon as possible and make sure the spare is
correctly in¯ated. Have the damaged or ¯at road
tire repaired or replaced as soon as you can and
installed back onto your vehicle. This way, a spare tire
will be available in case you need it again.
Your vehicle may have a different size spare tire than
the road tires, those originally installed on your vehicle.
This spare tire was developed for use on your vehicle,
so it is all right to drive on it.
5-95

Engine Coolant Level Check
Check the engine coolant level and add
DEX-COOLžcoolant mixture if necessary. SeeEngine
Coolant on page 5-21for further details.
Windshield Washer Fluid Level Check
Check the windshield washer ¯uid level in the windshield
washer tank and add the proper ¯uid if necessary.
At Least Once a Month
Tire In¯ation Check
Visually inspect your tires and make sure tires are
in¯ated to the correct pressures. Do not forget to check
your spare tire. See
Tires on page 5-59for further
details. Check to make sure the spare tire is stored
securely. Push, pull and then try to rotate or turn
the spare tire. If it moves, tighten it. See
Changing a
Flat Tire on page 5-76.
At Least Once a Year
Starter Switch 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.
2. Firmly apply both the parking brake and the regular
brake. See
Parking Brake on page 2-25if
necessary.
Do not use the accelerator pedal, and be ready to
turn off the engine immediately if it starts.
3. Try to start the engine in each gear. The starter
should work only in PARK (P) or NEUTRAL (N).
If the starter works in any other position, contact
your GM Goodwrench dealer for service.
6-10

Roadside Assistance Program
Security While You Travel
1-800-GMC-8782 (1-800-462-8782, Roadside
Assistance prompt)
As the proud owner of a new GMC vehicle, you are
automatically enrolled in the GMC Roadside Assistance
program. This value-added service is intended to
provide you with peace of mind as you drive in the city
or travel the open road. GMC's Roadside Assistance
toll-free number is staffed by courteous and capable
Roadside Assistance Representatives who are available
24 hours a day, 365 days a year.
We will provide the following services during the
Bumper-to-Bumper warranty period, at no expense
to you:
·Fuel Delivery:Delivery of enough fuel
($5 maximum) for the customer to get to the
nearest service station.
·Lock-out Service (identi®cation required):
Replacement keys or locksmith service will
be covered at no charge if you are unable to gain
entry into your vehicle. Delivery of the replacement
key will be covered within 10 miles.
·Emergency Tow:Tow to the nearest dealership for
warranty service or in the event of a
vehicle-disabling accident. Assistance when the
vehicle is mired in sand, mud or snow.
·Flat Tire Change:Installation of a spare tire will be
covered at no charge. (The customer is responsible
for the repair or replacement of the tire if not
covered by a warrantable failure.)
·Jump Start:No-start occurrences which require a
battery jump start will be covered at no charge.
·Dealer Locator Service
·Trip Routing:Your Roadside Assistance
Representative can provide you with speci®c
information regarding this feature.
·Trip Interruption Expense Bene®ts:Your
Roadside Assistance Representative can provide
you with speci®c information regarding this feature.
In many instances, mechanical failures are covered
under GMC's Bumper-to-Bumper warranty. However,
when other services are utilized, our Roadside
Assistance Representatives will explain any payment
obligations you might incur.
7-6

Engine (cont.)
Engine Compartment Overview......................5-10
Exhaust.....................................................2-29
Fan Noise..................................................5-34
Oil .............................................................5-11
Overheating................................................5-25
Starting......................................................2-19
ENGINE COOLANT HOT.................................3-59
Engine Hour Meter Display...............................3-29
Engine Oil Additives........................................5-14
ENGINE OVERHEATED..................................3-59
Entry Lighting.................................................3-16
Environmental Concerns..................................4-20
Erasing HomeLink
žButtons..............................2-41
Event Data Records (EDR)................................ 7-9
Exit Lighting...................................................3-16
Express-Down Windows...................................2-14
Extender, Safety Belt.......................................1-29
Exterior Lamps...............................................3-12
F
Filter
Engine Air Cleaner......................................5-16
Finding a Program Type (PTY) Station
(RDS and XMŸ).........................................3-69
Finding a Station............................................3-67
Finish Care....................................................5-99
Finish Damage.............................................5-102Fixed Mast Antenna........................................3-88
Flash-to-Pass................................................... 3-7
Flat Tire........................................................5-75
Flat Tire, Changing.........................................5-76
Fluid
Automatic Transmission................................5-18
Power Steering...........................................5-34
Windshield Washer......................................5-35
FM Stereo.....................................................3-86
Fog Lamps....................................................3-15
Folding the Rear Seat....................................... 1-8
Following Distance..........................................4-66
Front Axle......................................................5-48
Front Reading Lamps......................................3-17
Fuel............................................................... 5-4
Additives...................................................... 5-5
California Fuel.............................................. 5-5
Filling a Portable Fuel Container..................... 5-8
Filling Your Tank........................................... 5-6
Fuels in Foreign Countries.............................. 5-6
Gage.........................................................3-45
Gasoline Octane........................................... 5-4
Gasoline Speci®cations.................................. 5-4
Low Warning Light.......................................3-45
Fuel Information Button....................................3-49
FUEL LEVEL LOW.........................................3-59
Fuses
Fuses and Circuit Breakers.........................5-105
Windshield Wiper.......................................5-105
6

Removing the Flat Tire and Installing the
Spare Tire..................................................5-80
Removing the Spare Tire and Tools...................5-77
Replacement Bulbs.........................................5-57
Replacing Brake System Parts..........................5-40
Replacing Restraint System Parts After
a Crash.....................................................1-80
Reporting Safety Defects
Canadian Government..................................7-11
General Motors...........................................7-11
United States Government............................7-10
Reprogramming a Single HomeLink
žButton.......2-42
Resetting Defaults...........................................2-42
Restraint System Check
Checking Your Restraint Systems...................1-79
Replacing Restraint System Parts After
a Crash..................................................1-80
Restraint Systems
Checking....................................................1-79
Replacing Parts...........................................1-80
Resynchronization............................................. 2-6
Retained Accessory Power (RAP)......................2-19
Right Front Passenger Position, Safety Belts......1-22
Right Front Passenger Position Top Strap
Anchor.......................................................1-42
Roadside
Assistance Program....................................... 7-6
Rocking Your Vehicle To Get It Out...................4-46
Running Your Engine While You Are Parked.......2-30
S
Safety Belt
Reminder Light............................................3-29
Safety Belts
Care of......................................................5-98
Center Passenger Position............................1-22
Driver Position............................................1-14
How to Wear Safety Belts Properly................1-14
Questions and Answers About Safety Belts.....1-13
Rear Safety Belt Comfort Guides for Children
and Small Adults......................................1-27
Rear Seat Passengers.................................1-24
Right Front Passenger Position......................1-22
Safety Belt Extender....................................1-29
Safety Belt Use During Pregnancy.................1-21
Safety Belts Are for Everyone......................... 1-8
Safety Chains.................................................4-64
Safety Warnings and Symbols.............................. iii
Scanning the Terrain.......................................4-21
Scheduled Maintenance..................................... 6-4
Seats
Head Restraints............................................ 1-7
Heated Seats............................................... 1-4
Memory.....................................................2-45
Power Lumbar.............................................. 1-4
Power Seats................................................. 1-3
Rear Seat Operation...................................... 1-8
Reclining Seatbacks...................................... 1-5
12

Secondary Latch System.................................5-92
Securing a Child Restraint
Center Rear Seat Position............................1-54
Designed for the LATCH System...................1-46
Rear Outside Seat Position...........................1-51
Right Front Seat Position..............................1-56
Security While You Travel.................................. 7-6
Select Button.................................................3-57
Service........................................................... 5-3
Adding Equipment to the Outside of Your
Vehicle..................................................... 5-4
Doing Your Own Work................................... 5-3
Engine Soon Light.......................................3-40
Publications Ordering Information...................7-11
SERVICE 4 WHEEL STEER.............................3-62
SERVICE 4WD...............................................3-62
SERVICE AIR SUSPENSION...........................3-62
SERVICE AIRBAG..........................................3-60
SERVICE BRAKE BOOSTER...........................3-61
SERVICE BRAKE SYSTEM.............................3-61
Service Bulletins.............................................7-12
Service Manuals.............................................7-11
SERVICE RIDE CONTROL..............................3-62
Setting Preset PTYs (RDS Only).......................3-70
Setting Preset Stations....................................3-67
Setting the Time.............................................3-64
Setting the Tone (Bass/Treble)..........................3-68
Sheet Metal Damage.....................................5-101
Shifting Into Park (P).......................................2-26
Shifting Out of Park (P)...................................2-28Skidding........................................................4-17
Some Other Rainy Weather Tips.......................4-35
Spare Tire.....................................................5-95
Speci®cations, Capacities...............................5-114
Speedometer..................................................3-29
Stalling on an Incline.......................................4-29
Starting Your Engine.......................................2-19
Steering........................................................4-10
Steering in Emergencies..................................4-11
Steering Tips..................................................4-10
Steering Wheel Controls, Audio.........................3-85
Storage Areas
Center Console Storage Area........................2-42
Cupholder(s)...............................................2-42
Glove Box..................................................2-42
Storing a Flat or Spare Tire, Jack and Tools.......5-88
Stuck in Sand, Mud, Ice or Snow......................4-46
Sun Visors.....................................................2-15
Swing-Out Windows........................................2-15
T
Tachometer....................................................3-29
Tailgate.........................................................2-11
Tailgate Removal............................................2-12
Taillamps.......................................................5-56
Temperature and Compass Display....................2-31
Testing the Alarm............................................2-17
Theft-Deterrent, Radio.....................................3-85
13

Theft-Deterrent Systems...................................2-15
Content Theft-Deterrent................................2-16
Passlock
ž...................................................2-17
TIGHTEN FUEL CAP......................................3-62
Tilt Wheel........................................................ 3-5
Tire Sidewall Labeling......................................5-60
Tire Size.......................................................5-63
Tire Terminology and De®nitions........................5-64
Tires.............................................................5-59
Buying New Tires........................................5-70
Chains.......................................................5-74
Changing a Flat Tire....................................5-76
If a Tire Goes Flat.......................................5-75
In¯ation - Tire Pressure................................5-67
Inspection and Rotation................................5-68
Spare Tire..................................................5-95
Uniform Tire Quality Grading.........................5-71
Wheel Alignment and Tire Balance.................5-72
Wheel Replacement.....................................5-73
When It Is Time for New Tires......................5-69
To Use the Engine Coolant Heater....................2-21
Tonneau Cover...............................................2-43
Top Strap......................................................1-40
Top Strap Anchor Location...............................1-42
Torque Lock...................................................2-28
Total Weight on Your Vehicle's Tires..................4-63
Tow/Haul Mode...............................................2-24
Tow/Haul Mode Light.......................................3-44Towing
Recreational Vehicle.....................................4-48
Towing a Trailer..........................................4-58
Your Vehicle...............................................4-48
Traction
Manual Selectable Ride................................. 4-9
TRACTION ACTIVE........................................3-63
Trailer
Recommendations.......................................4-57
Trailer Brakes.................................................4-64
Trailer Wiring Harness.....................................4-69
Transfer Case................................................5-46
Transmission
Fluid, Automatic...........................................5-18
Temperature Gage.......................................3-39
TRANSMISSION HOT.....................................3-63
Transmission Operation, Automatic....................2-22
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-11
Transportation Options...................................... 7-8
Traveling to Remote Areas...............................4-20
Trip Information Button....................................3-47
Trip Odometer................................................3-29
Truck-Camper Loading Information....................4-55
Turn and Lane Change Signals.......................... 3-6
TURN SIGNAL ON.........................................3-63
Turn Signal/Multifunction Lever........................... 3-5
Turn Signals When Towing a Trailer..................4-66
Two-Tiered Loading.........................................4-54
14