ECU GMC YUKON 2006 Repair Manual

4. Repeat this procedure at least two times. If the
spare tire lowers to the ground, continue with
Step 5 ofRemoving the Spare Tire and Tools
on page 5-78.
5. If the spare does not lower, turn the wrench
counterclockwise until approximately 6 inches
(15 cm) of cable is exposed.
6. Stand the wheel blocks on their shortest ends,
with the backs facing each other.
7. Place the bottom
edge of the jack (A) on
the wheel blocks (B),
separating them so that
the jack is balanced
securely.
8. Attach the jack handle, extension, and wheel
wrench to the jack and place it (with the wheel
blocks) under the vehicle toward the front of the
rear bumper.
5-89

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.
8. Reinstall the spare tire lock (if equipped).A. Retaining Bracket and Wing Nut
B. Jack Tools
C. Wing Nut Retaining Wheel
BlocksD. Wheel Blocks
E. Jack
F. Knob
1. Put the jack tools (B), in the tool bag and place
in the retaining clip above the jack (E).
2. Tighten down with the wing nut (A).
3. Assemble the wheel blocks (D) and jack (E)
together with the wing nut (D) and knob (F).
4. Position the jack storage cover in the left rear
side panel and tighten, adjusting clockwise until
the jack is secured tight in the mounting bracket.
Regular Models - Rear Access Panel
5-94

Be sure to position the holes in the base of the jack
onto the pin in the mounting bracket.
A. Knob
B. Removable Storage Tray
C. Retaining Hook
D. Retaining Bracket
and Wing Nut
E. Jack ToolsF. Mounting Bracket
G. Wing Nut
Retaining Wheel
Blocks
H. Wheel Blocks
I. Jack1. Return the jack tools (E), to the tool bag.
2. Assemble wheel blocks (H) and jack (I) together
with the wing nut (G) and retaining hook (C).
3. Position under the jack storage tray (B) 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 (B) to its original location.
Spare Tire
Your vehicle, when new, had a fully-inated spare tire.
A spare tire may lose air over time, so check its
ination pressure regularly. SeeInation - Tire Pressure
on page 5-63andLoading Your Vehicle on page 4-46
for information regarding proper tire ination and loading
your vehicle. For instruction on how to remove, install
or store a spare tire, seeRemoving the Flat Tire
and Installing the Spare Tire on page 5-81andStoring
a Flat or Spare Tire and Tools on page 5-92. Extended Models
5-95

At Each Fuel Fill
It is important to perform these underhood checks
at each fuel ll.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-15for further
details.
Notice:It is important to check your oil regularly
and keep it at the proper level. Failure to keep your
engine oil at the proper level can cause damage
to your engine not covered by your warranty.
Engine Coolant Level Check
Check the engine coolant level and add
DEX-COOL®coolant mixture if necessary.
SeeEngine Coolant on page 5-25for further details.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in the
windshield washer uid reservoir 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.
6-10

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, call1-888-889-2438.
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.
Courtesy Transportation
To enhance your ownership experience, we and our
participating dealers are proud to offer Courtesy
Transportation, a customer support program for
new vehicles.
The Courtesy Transportation program is offered to
customers in conjunction with the Bumper-to-Bumper
coverage provided by the New Vehicle Limited Warranty.
Several transportation options are available when
warranty repairs are required. This will reduce your
inconvenience during warranty repairs.
7-7

C
California Fuel.................................................. 5-5
California Proposition 65 Warning....................... 5-3
Canadian Owners................................................ ii
Capacities and Specications..........................5-114
Carbon Monoxide...................2-13, 2-35, 4-40, 4-60
Care of
Safety Belts................................................5-99
Your Cassette Tape Player..........................3-134
Your CD and DVD Player...........................3-135
Your CDs and DVDs..................................3-135
Cargo Cover..................................................2-59
Center Console Storage Area...........................2-57
Center Passenger Position, Safety Belts.............1-40
Chains, Tire...................................................5-74
Check
Engine Light...............................................3-46
Checking Things Under the Hood......................5-10
Chemical Paint Spotting.................................5-103
Child Restraints
Child Restraint Systems...............................1-53
Infants and Young Children...........................1-50
Lower Anchors and Tethers for Children..........1-58
Older Children.............................................1-47
Securing a Child Restraint in a Rear
Outside Seat Position...............................1-66
Securing a Child Restraint in the Center
Front Seat Position...................................1-70Child Restraints (cont.)
Securing a Child Restraint in the Center
Rear Seat Position...................................1-68
Securing a Child Restraint in the Right
Front Seat Position...................................1-70
Where to Put the Restraint...........................1-57
Chime Level Adjustment.................................3-136
Cigarette Lighter.............................................3-21
Cleaning
Aluminum or Chrome-Plated Wheels.............5-102
Exterior Lamps/Lenses................................5-100
Fabric/Carpet..............................................5-98
Finish Care...............................................5-100
Inside of Your Vehicle..................................5-96
Instrument Panel, Vinyl, and Other
Plastic Surfaces.......................................5-99
Leather......................................................5-98
Tires........................................................5-103
Underbody Maintenance.............................5-103
Washing Your Vehicle.................................5-100
Weatherstrips..............................................5-99
Windshield, Backglass, and Wiper Blades......5-101
Climate Control System...................................3-22
Dual..........................................................3-23
Dual Automatic............................................3-25
Outlet Adjustment........................................3-31
Rear Air Conditioning and Heating System......3-32
Rear Air Conditioning and Heating System,
Electronic................................................3-33
3

Collision Damage Repair..................................7-11
Comfort Guides, Rear Safety Belt.....................1-44
Content Theft-Deterrent....................................2-17
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-58
Coolant
Engine Temperature Gage............................3-43
Heater, Engine............................................2-22
Surge Tank Pressure Cap.............................5-27
Cooling System..............................................5-30
Cruise Control................................................3-11
Cruise Control Light........................................3-49
Cupholder(s)..................................................2-56
Customer Assistance Information
Courtesy Transportation.................................. 7-7
Customer Assistance for Text
Telephone (TTY) Users............................... 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Reimbursement Program............... 7-5
Reporting Safety Defects to
General Motors........................................7-15
Reporting Safety Defects to the
Canadian Government..............................7-14
Reporting Safety Defects to the
United States Government.........................7-14
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-15D
Daytime Running Lamps..................................3-16
Defensive Driving............................................. 4-2
Delayed Locking.............................................2-10
Doing Your Own Service Work........................... 5-4
Dome Lamp Override......................................3-20
Dome Lamps.................................................3-19
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.....................................1-32
Driver Information Center (DIC).........................3-52
DIC Operation and Displays..........................3-53
DIC Vehicle Customization............................3-67
DIC Warnings and Messages........................3-56
Driving
At Night.....................................................4-31
City...........................................................4-34
Defensive..................................................... 4-2
Drunken....................................................... 4-3
Freeway.....................................................4-35
Hill and Mountain Roads..............................4-38
In Rain and on Wet Roads...........................4-32
Off-Road....................................................4-16
Recovery Hooks..........................................4-45
4

Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn............................................................... 3-6
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-32
I
Ignition Positions.............................................2-19
Infants and Young Children, Restraints...............1-50
Ination -- Tire Pressure..................................5-63
Instrument Panel
Overview..................................................... 3-4
Instrument Panel (I/P)
Brightness..................................................3-19
Cluster.......................................................3-36
J
Jump Starting.................................................5-42
K
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Labeling, Tire Sidewall.....................................5-58
Lamps
Auxiliary Roof Mounted Lamp........................3-19
Battery Run-Down Protection.........................3-20
Dome........................................................3-19
Dome Lamp Override...................................3-20
Fog ...........................................................3-18
Front Reading.............................................3-20
LATCH System
Child Restraints...........................................1-58
Level Control..................................................4-59
Liftgate..........................................................2-13
Light
Airbag Readiness........................................3-38
Anti-Lock Brake System Warning...................3-43
Battery Warning..........................................3-40
Brake System Warning.................................3-42
Cruise Control.............................................3-49
Four-Wheel-Drive.........................................3-50
Highbeam On.............................................3-50
Low Fuel Warning.......................................3-51
Malfunction Indicator....................................3-46
Passenger Airbag Status Indicator..................3-38
Safety Belt Reminder...................................3-37
Security.....................................................3-49
Tire Pressure..............................................3-45
Tow/Haul Mode...........................................3-50
7

Lighting
Entry.........................................................3-20
Exit...........................................................3-20
Loading Your Vehicle.......................................4-46
Locking Rear Axle............................................ 4-8
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...............................................4-15
Low Fuel Warning Light...................................3-51
Luggage Carrier..............................................2-57
Lumbar
Power Controls............................................. 1-4
MMaintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill.........................................6-10
At Least Once a Month................................6-10
At Least Once a Year..................................6-11
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-8
Maintenance Record....................................6-17
Maintenance Requirements............................. 6-2Maintenance Schedule (cont.)
Normal Maintenance Replacement Parts.........6-15
Owner Checks and Services........................... 6-9
Recommended Fluids and Lubricants.............6-13
Scheduled Maintenance................................. 6-4
Using.......................................................... 6-3
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Light................................3-46
Manual Seats................................................... 1-3
Memory Seat.................................................2-62
Message
DIC Warnings and Messages........................3-56
Mirrors
Automatic Dimming Rearview with Compass....2-42
Automatic Dimming Rearview with Compass
and Temperature Display...........................2-44
Automatic Dimming Rearview with OnStar
®
and Compass..........................................2-37
Automatic Dimming Rearview with OnStar®,
Compass and Temperature Display.............2-39
Manual Rearview Mirror................................2-37
Outside Automatic Dimming Mirror.................2-48
Outside Camper-Type Mirrors........................2-46
Outside Convex Mirror.................................2-49
Outside Curb View Assist Mirrors...................2-49
Outside Heated Mirrors................................2-49
Outside Manual Mirrors................................2-46
Outside Power Foldaway Mirrors....................2-48
Outside Power Mirrors..................................2-47
MyGMLink.com................................................ 7-3
8

Q
Questions and Answers About Safety Belts.........1-31
R
Radios..........................................................3-74
AM-FM Radio.............................................3-76
Care of Your Cassette Tape Player...............3-134
Care of Your CD and DVD Player................3-135
Care of Your CDs and DVDs.......................3-135
Navigation/Radio System, see Navigation
Manual.................................................3-118
Radio with Cassette and CD.........................3-90
Radio with CD............................................3-79
Radio with Six-Disc CD..............................3-104
Rear Seat Audio........................................3-130
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..........................................3-132
Understanding Reception............................3-133
Rear Air Conditioning and Heating System.........3-32
Rear Air Conditioning and Heating System
and Electronic Climate Controls.....................3-33
Rear Axle......................................................5-46
Locking........................................................ 4-8Rear Door Security Locks................................2-12
Rear Outside Passenger Positions,
Safety Belts................................................1-42
Rear Safety Belt Comfort Guides......................1-44
Rear Seat Audio (RSA)..................................3-130
Rear Seat Entertainment System.....................3-118
Rear Seat Operation......................................... 1-8
Rear Storage Area..........................................2-58
Rear Windshield Washer/Wiper.........................3-10
Rearview Mirror, Automatic Dimming with
Compass....................................................2-42
Rearview Mirror, Automatic Dimming with
Compass and Temperature Display................2-44
Rearview Mirror, Automatic Dimming with
OnStar
®and Compass.................................2-37
Rearview Mirror, Automatic Dimming with
OnStar
®, Compass and Temperature Display.....2-39
Rearview Mirrors.............................................2-37
Reclining Seatbacks.......................................... 1-6
Recommended Fluids and Lubricants.................6-13
Recovery Hooks.............................................4-45
Recreational Vehicle Towing.............................4-56
Remote Keyless Entry System............................ 2-4
Remote Keyless Entry System, Operation............ 2-5
Removing the Flat Tire and Installing the
Spare Tire..................................................5-81
Removing the Spare Tire and Tools...................5-78
Replacement Bulbs.........................................5-55
10