2005 GMC YUKON ECU

7. Make sure the tire is stored securely. Push, pull (A),
and then try to turn (B) the tire. If the tire moves,
use the wheel wrench to tighten the cable. Reinstall
the spare tire lock (if equipped).
To store the tools, follow these procedures:
For Yukon, do the following:
1. Put the tool kit, with the jack tools, in the tool bag
and place in the retaining clip above the jack.
2. Tighten down with the wing nut.3. Then, assemble wheel chocks and jack together
with the wing nut and retaining hook.
4. Position behind the jack storage cover in the left
rear side panel and tighten, adjusting clockwise
until the jack is secured tight in the mounting
bracket. Be sure to position the holes in the base
of the jack onto the pin in the mounting bracket.
For Yukon XL, do the following:
1. Return the tool kit, with the jack tools, to the
tool bag.
2. Assemble wheel chocks and jack together with the
wing nut and retaining hook.
3. Position under the jack storage tray in the left rear
side panel below the wheelbase and tighten,
adjusting clockwise until the jack is secured tight in
the mounting bracket. Be sure to position the
holes in the base of the jack onto the pin in the
mounting bracket.
4. Use the retaining clip to fasten the tool kit on the stud
in the storage compartment in the rear left trim panel
and turn the wing nut clockwise to secure.
5. Return the storage tray.
5-93

Engine Coolant Level Check
Check the engine coolant level and add
DEX-COOL®coolant mixture if necessary.
SeeEngine Coolant on page 5-24for 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 Ination Check
Visually inspect your vehicle’s tires and make sure they
are inated to the correct pressures. Do not forget to
check the spare tire. SeeTires on page 5-57for further
details. Check to make sure the spare tire is stored
securely. SeeChanging a Flat Tire on page 5-76.
Tire Wear Inspection
Tire rotation may be required for high mileage highway
drivers prior to the Engine Oil Life System service
notication. Check the tires for wear and, if necessary,
rotate the tires. SeeTire Inspection and Rotation on
page 5-68.
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. SeeParking Brake on page 2-35.
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 vehicle
should start only in PARK (P) or NEUTRAL (N).
If the vehicle starts in any other position, contact
your GM Goodwrench
®dealer for service.
6-10

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 specic
information regarding this feature.
Trip Interruption Expense Benets:Your
Roadside Assistance Representative can provide
you with specic 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.
For prompt and efficient assistance when calling, please
provide the following to the Roadside Assistance
Representative:
Your name, home address, and home telephone
number.
Telephone number of your location.
Location of the vehicle.
Model, year, color, and license plate number of the
vehicle.
Mileage, Vehicle Identication Number (VIN) and
delivery date of the vehicle.
Description of the problem.
While we hope you never have the occasion to use our
service, it is added security while traveling for you
and your family. Remember, we are only a phone call
away. GMC Roadside Assistance: 1-800-462-8782, text
telephone (TTY) users, call 1-888-889-2438.
GMC reserves the right to limit services or
reimbursement to an owner or driver when, in GMC’s
judgement, the claims become excessive in frequency or
type of occurrence.
Roadside Assistance is not part of or included in the
coverage provided by the New Vehicle Limited Warranty.
GMC reserves the right to make any changes or
discontinue the Roadside Assistance program at any
time without notication.
Canadian Roadside Assistance
Vehicles purchased in Canada have an extensive
roadside assistance program accessible from anywhere
in Canada or the United States. Please refer to the
Warranty and Owner Assistance Information book.
7-6

Bulb Replacement (cont.)
Roof Marker Lamps.....................................5-52
Side Identication Marker Lamps...................5-52
Taillamps....................................................5-54
Buying New Tires...........................................5-70
C
California Fuel.................................................. 5-5
Canadian Owners................................................ ii
Capacities and Specications..........................5-114
Carbon Monoxide...................2-13, 2-39, 4-45, 4-67
Care of
Safety Belts................................................5-99
Your Cassette Tape Player..........................3-133
Your CD and DVD Player...........................3-134
Your CDs and DVDs..................................3-134
Cargo Cover..................................................2-58
Center Console Storage Area...........................2-56
Center Passenger Position, Safety Belts.............1-36
Chains, Tire...................................................5-75
Check
Engine Light...............................................3-48
Checking Things Under the Hood......................5-10
Chemical Paint Spotting.................................5-102Child Restraints
Child Restraint Systems...............................1-49
Infants and Young Children...........................1-45
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-56
Older Children.............................................1-43
Securing a Child Restraint Designed for the
LATCH System........................................1-58
Securing a Child Restraint in a Center Rear
Seat Position...........................................1-61
Securing a Child Restraint in a Rear Outside
Seat Position...........................................1-59
Securing a Child Restraint in the Center Front
Seat Position...........................................1-62
Securing a Child Restraint in the Right Front
Seat Position...........................................1-63
Top Strap...................................................1-53
Top Strap Anchor Location............................1-54
Where to Put the Restraint...........................1-52
Chime Level Adjustment.................................3-135
Cigarette Lighter.............................................3-20
Cleaning
Aluminum or Chrome-Plated Wheels.............5-101
Exterior Lamps/Lenses.................................5-99
Fabric/Carpet..............................................5-97
Finish Care...............................................5-100
3

Door
Delayed Locking..........................................2-10
Locks.......................................................... 2-8
Power Door Locks......................................... 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-12
Driver
Position, Safety Belt.....................................1-28
Driver Information Center (DIC).........................3-54
DIC Operation and Displays..........................3-55
DIC Vehicle Customization............................3-68
DIC Warnings and Messages........................3-58
Driving
At Night.....................................................4-36
City...........................................................4-40
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-41
Hill and Mountain Roads..............................4-43
In Rain and on Wet Roads...........................4-37
Off-Road....................................................4-21
Recovery Hooks..........................................4-50
Rocking Your Vehicle to Get it Out.................4-50
Winter........................................................4-45
Dual Automatic Climate Control System.............3-24
Dual Climate Control System............................3-22
DVD
Rear Seat Entertainment System..................3-118E
Electrical System
Add-On Equipment.....................................5-105
Center Instrument Panel Fuse Block.............5-108
Fuses and Circuit Breakers.........................5-105
Instrument Panel Fuse Block.......................5-106
Power Windows and Other Power Options....5-105
Underhood Fuse Block...............................5-109
Windshield Wiper Fuses.............................5-105
Engine
Air Cleaner/Filter.........................................5-19
Battery.......................................................5-40
Check and Service Engine Soon Light............3-48
Coolant......................................................5-24
Coolant Heater............................................2-22
Coolant Temperature Gage...........................3-46
Engine Compartment Overview......................5-12
Exhaust.....................................................2-39
Fan Noise..................................................5-34
Oil .............................................................5-15
Oil Life System...........................................5-18
Overheated Protection Operating Mode...........5-29
Overheating................................................5-27
Starting......................................................2-21
Entry Lighting.................................................3-18
Event Data Recorders (EDR)............................. 7-8
Exit Lighting...................................................3-18
Extender, Safety Belt.......................................1-42
5

J
Jump Starting.................................................5-41
K
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Labelling, Tire Sidewall....................................5-58
Lamps
Auxiliary Roof Mounted Lamp........................3-17
Battery Run-Down Protection.........................3-19
Dome........................................................3-18
Dome Lamp Override...................................3-18
Fog ...........................................................3-17
Front Reading.............................................3-19
LATCH System
Child Restraints...........................................1-56
Securing a Child Restraint Designed for the
LATCH System........................................1-58Level Control..................................................4-65
Liftgate..........................................................2-13
Light
Airbag Readiness........................................3-39
Anti-Lock Brake System Warning...................3-44
Battery Warning..........................................3-42
Brake System Warning.................................3-43
Cruise Control.............................................3-52
Four-Wheel-Drive.........................................3-52
Highbeam On.............................................3-52
Low Fuel Warning.......................................3-53
Malfunction Indicator....................................3-48
Passenger Airbag Status Indicator..................3-40
Safety Belt Reminder...................................3-39
Security.....................................................3-52
Tire Pressure..............................................3-48
Tow/Haul Mode...........................................3-53
Traction Off................................................3-45
Lighting
Entry.........................................................3-18
Exit...........................................................3-18
Loading Your Vehicle.......................................4-51
Locking Rear Axle...........................................4-10
8

Lockout Protection..........................................2-13
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...............................................4-19
Low Fuel Warning Light...................................3-53
Luggage Carrier..............................................2-56
Lumbar
Power Controls............................................. 1-5
M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-9
At Least Once a Month................................6-10
At Least Once a Year..................................6-10
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-16
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-15Maintenance Schedule (cont.)
Owner Checks and Services........................... 6-9
Recommended Fluids and Lubricants.............6-13
Scheduled Maintenance................................. 6-4
Using.......................................................... 6-2
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Light................................3-48
Manual Seats................................................... 1-3
Manual Windows............................................2-15
Memory Seat.................................................2-61
Message
DIC Warnings and Messages........................3-58
Mirrors
Automatic Dimming Rearview with Compass
and Temperature Display...........................2-44
Automatic Dimming Rearview with OnStar
®,
Compass and Temperature Display.............2-41
Manual Rearview Mirror................................2-41
Outside Automatic Dimming Mirror.................2-49
Outside Camper-Type Mirrors........................2-47
Outside Convex Mirror.................................2-49
Outside Curb View Assist Mirrors...................2-49
Outside Heated Mirrors................................2-49
Outside Manual Mirrors................................2-46
Outside Power Camper-Type.........................2-47
Outside Power Foldaway Mirrors....................2-48
Outside Power Mirrors..................................2-47
MyGMLink.com................................................ 7-3
9

Power (cont.)
Lumbar Controls........................................... 1-5
Retained Accessory (RAP)............................2-20
Seat............................................................ 1-4
Steering Fluid.............................................5-35
Windows....................................................2-15
Programmable Automatic Door Locks.................2-10
Q
QUADRASTEER™..........................................4-15
Questions and Answers About Safety Belts.........1-26
R
Radios..........................................................3-74
AM-FM Radio.............................................3-76
Care of Your Cassette Tape Player...............3-133
Care of Your CD and DVD Player................3-134
Care of Your CDs and DVDs.......................3-134
Navigation/Radio System, see Navigation
Manual.................................................3-118
Radio with Cassette and CD.........................3-89
Radio with CD............................................3-78
Radio with Six-Disc CD..............................3-103Radios (cont.)
Rear Seat Audio........................................3-129
Setting the Time for Radios with Radio Data
Systems (RDS)........................................3-75
Setting the Time for Radios without Radio
Data Systems (RDS)................................3-75
Theft-Deterrent..........................................3-131
Understanding Reception............................3-132
Rear Air Conditioning and Heating System.........3-31
Rear Air Conditioning and Heating System and
Electronic Climate Controls...........................3-34
Rear Air Conditioning System...........................3-30
Rear Axle......................................................5-46
Locking......................................................4-10
Rear Door Security Locks................................2-12
Rear Safety Belt Comfort Guides......................1-40
Rear Seat Audio (RSA)..................................3-129
Rear Seat Entertainment System.....................3-118
Rear Seat Operation......................................... 1-8
Rear Seat Passengers, Safety Belts..................1-37
Rear Storage Area..........................................2-57
Rearview Mirror, Automatic Dimming with
Compass and Temperature Display................2-44
Rearview Mirror, Automatic Dimming with
OnStar
®, Compass and Temperature Display . . . 2-41
Rearview Mirrors.............................................2-41
11