ECO mode GMC YUKON 2009 Service Manual

Treadwear Indicators:Narrow bands, sometimes
called wear bars, that show across the tread of
a tire when only 1/16 inch (1.6 mm) of tread
remains. SeeWhen It Is Time for New Tires on
page 5-79.
UTQGS (Uniform Tire Quality Grading
Standards)
:A tire information system that
provides consumers with ratings for a tire’s
traction, temperature, and treadwear. Ratings
are determined by tire manufacturers using
government testing procedures. The ratings are
molded into the sidewall of the tire. SeeUniform
Tire Quality Grading on page 5-82.
Vehicle Capacity Weight
:The number of
designated seating positions multiplied by 150 lbs
(68 kg) plus the rated cargo load. SeeLoading
the Vehicle on page 4-33.
Vehicle Maximum Load on the Tire
:Load on an
individual tire due to curb weight, accessory
weight, occupant weight, and cargo weight.
Vehicle Placard
:A label permanently attached to
a vehicle showing the vehicle’s capacity weight
and the original equipment tire size and
recommended ination pressure. See “Tire and
Loading Information Label” underLoading
the Vehicle on page 4-33.
Ination - Tire Pressure
If your vehicle is a Two-mode Hybrid, see the
Two-mode Hybrid manual for more information.
Tires need the correct amount of air pressure
to operate effectively.
Notice:Do not let anyone tell you that
under-ination or over-ination is all right. It is
not. If your tires do not have enough air
(under-ination), you can get the following:
Too much exing
Too much heat
Tire overloading
Premature or irregular wear
Poor handling
Reduced fuel economy
If your tires have too much air (over-ination),
you can get the following:
Unusual wear
Poor handling
Rough ride
Needless damage from road hazards
5-70

You have two minutes to match the rst tire/wheel
position, and ve minutes overall to match all four
tire/wheel positions. If it takes longer than two minutes, to
match the rst tire and wheel, or more than ve minutes
to match all four tire and wheel positions the matching
process stops and you need to start over.
The TPMS sensor matching process is outlined below:
1. Set the parking brake.
2. Turn the ignition switch to ON/RUN with the
engine off.
3. Press the Remote Keyless Entry (RKE) transmitter’s
LOCK and UNLOCK buttons at the same time for
approximately ve seconds. The horn sounds twice
to signal the receiver is in relearn mode and TIRE
LEARNING ACTIVE message displays on the DIC
screen.
4. Start with the driver side front tire.
5. Remove the valve cap from the valve cap stem.
Activate the TPMS sensor by increasing or
decreasing the tire’s air pressure for ve seconds, or
until a horn chirp sounds. The horn chirp, which may
take up to 30 seconds to sound, conrms that the
sensor identication code has been matched to this
tire and wheel position.6. Proceed to the passenger side front tire, and repeat
the procedure in Step 5.
7. Proceed to the passenger side rear tire, and repeat
the procedure in Step 5.
8. Proceed to the driver side rear tire, and repeat the
procedure in Step 5. The horn sounds two times to
indicate the sensor identication code has been
matched to the driver side rear tire, and the TPMS
sensor matching process is no longer active. The
TIRE LEARNING ACTIVE message on the DIC
display screen goes off.
9. Turn the ignition switch to LOCK/OFF.
10. Set all four tires to the recommended air pressure
level as indicated on the Tire and Loading
Information label.
11. Put the valve caps back on the valve stems.
5-77

Tire Chains
If your vehicle is a Two-mode Hybrid, see the Two-mode
Hybrid manual for more information.
{CAUTION:
If your vehicle has P265/65R18 or P275/55R20
size tires, do not use tire chains. They can
damage your vehicle because there is not enough
clearance. Tire chains used on a vehicle without
the proper amount of clearance can cause
damage to the brakes, suspension, or other
vehicle parts. The area damaged by the tire
chains could cause you to lose control of your
vehicle and you or others may be injured in a
crash.
CAUTION: (Continued)
CAUTION: (Continued)
Use another type of traction device only if its
manufacturer recommends it for use on your
vehicle and tire size combination and road
conditions. Follow that manufacturer’s instructions.
To help avoid damage to your vehicle, drive
slowly, readjust or remove the device if it is
contacting your vehicle, and do not spin your
vehicle’s wheels.
If you do nd traction devices that will t, install
them on the rear tires.
Notice:If your vehicle has P265/70R17 size tires,
use tire chains only where legal and only when you
must. Use chains that are the proper size for your
vehicle’s tires. Install them on the rear tires only.
Do not use chains on the front tires.
Tighten them as tightly as possible with the ends
securely fastened. Drive slowly and follow the chain
manufacturer’s instructions. If you can hear the
chains contacting your vehicle, stop and retighten
them. If the contact continues, slow down until
it stops. Driving too fast or spinning the wheels with
chains on will damage your vehicle.
5-86

Capacities and Specications
If your vehicle is a Two-mode Hybrid, see the Two-mode Hybrid manual for more information.
The following approximate capacities are given in English and metric conversions. SeeRecommended Fluids and
Lubricants on page 6-13for more information.
ApplicationCapacities
English Metric
Air Conditioning Refrigerant R134aFor the air conditioning system refrigerant charge
amount, see the refrigerant caution label located
under the hood. See your dealer/retailer for more
information.
Cooling System
4.8L V8 17.8 qt 16.9 L
5.3L V8 18.3 qt 17.3 L
6.0L V8 1500 Series 17.9 qt 16.9 L
6.0L V8 2500 Series 17.4 qt 16.5 L
6.2L V8 17.6 qt 16.7 L
Engine Oil with Filter 6.0 qt† 5.7 L†
5-123

Current and Past Model Order Forms
Technical Service Bulletins and Manuals are available
for current and past model GM vehicles. To request
an order form, specify year and model name of
the vehicle.
ORDER TOLL FREE: 1-800-551-4123
Monday-Friday 8:00 AM - 6:00 PM
Eastern Time
For Credit Card Orders Only
(VISA-MasterCard-Discover), visit Helm, Inc.
on the World Wide Web at: helminc.com
Or you can write to:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207
Prices are subject to change without notice and without
incurring obligation. Allow ample time for delivery.
Note to Canadian Customers: All listed prices are
quoted in U.S. funds. Canadian residents are to make
checks payable in U.S. funds.
Vehicle Data Recording and
Privacy
Your GM vehicle has a number of sophisticated
computers that record information about the vehicle’s
performance and how it is driven. For example, your
vehicle uses computer modules to monitor and control
engine and transmission performance, to monitor the
conditions for airbag deployment and deploy airbags in
a crash and, if so equipped, to provide antilock braking
to help the driver control the vehicle. These modules
may store data to help your dealer/retailer technician
service your vehicle. Some modules may also store data
about how you operate the vehicle, such as rate of fuel
consumption or average speed. These modules may also
retain the owner’s personal preferences, such as radio
pre-sets, seat positions, and temperature settings.
7-16

Electrical System (cont.)
Electronic Immobilizer
PASS-Key
®III+...........................................2-22
Electronic Immobilizer Operation
PASS-Key
®III+...........................................2-23
Engine
Air Cleaner/Filter.........................................5-19
Check and Service Engine Soon Lamp...........3-44
Coolant......................................................5-29
Coolant Heater............................................2-28
Coolant Temperature Gage...........................3-43
Drive Belt Routing.......................................6-16
Engine Compartment Overview......................5-14
Exhaust.....................................................2-46
Fan Noise..................................................5-38
Oil .............................................................5-15
Oil Life System...........................................5-18
Overheated Protection Operating Mode...........5-37
Overheating................................................5-35
Starting......................................................2-26
Entry Lighting.................................................3-19
Event Data Recorders.....................................7-17
Exit Lighting...................................................3-19
Extender, Safety Belt.......................................1-53
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-19
Finish Damage.............................................5-114
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-87
Flat Tire, Changing.........................................5-88
Flat Tire, Storing...........................................5-103
Fluid
Automatic Transmission........................5-21, 5-24
Power Steering...........................................5-38
Windshield Washer......................................5-39
Fog Lamp
Fog ...........................................................3-17
Fog Lamp Light..............................................3-49
Four-Wheel Drive....................................2-37, 5-52
Front Axle......................................................5-53
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Driving for Better Economy............................. 4-2
E85 (85% Ethanol)........................................ 5-7
Filling a Portable Fuel Container....................5-11
Filling the Tank............................................. 5-9
Fuels in Foreign Countries.............................. 5-8
5

N
Navigation System, Privacy..............................7-18
Navigation/Radio System, see Navigation
Manual.....................................................3-114
New Vehicle Break-In......................................2-24
O
Odometer......................................................3-36
Odometer, Trip...............................................3-36
Off-Road Driving.............................................4-12
Off-Road Recovery..........................................4-11
Oil
Engine.......................................................5-15
Pressure Gage............................................3-46
Pressure Light.............................................3-48
Oil, Engine Oil Life System..............................5-18
Older Children, Restraints................................1-54
Online Owner Center........................................ 7-5
OnStar, Privacy..............................................7-18
OnStar
®System, see OnStar®Manual...............2-64
Operation, Universal Home Remote System........2-68
Outlet Adjustment............................................3-31
Outlets
Accessory Power.........................................3-20
Outside
Automatic Dimming Mirror.............................2-51
Convex Mirror.............................................2-52
Heated Mirrors............................................2-52Outside (cont.)
Manual Mirrors............................................2-49
Power Foldaway Mirrors...............................2-50
Power Mirrors.............................................2-50
Towing Mirrors............................................2-49
Overheated Engine Protection
Operating Mode..........................................5-37
Owner Checks and Services.............................6-10
Owners, Canadian.............................................. iii
P
Paint, Damage..............................................5-114
Park
Shifting Into................................................2-44
Shifting Out of............................................2-45
Park Aid................................................2-53, 2-59
Park Brake....................................................2-42
Park Tilt Mirrors..............................................2-51
Parking
Assist........................................................2-53
Over Things That Burn.................................2-46
Passenger Airbag Status Indicator.....................3-38
Passenger Sensing System..............................1-90
Passing.........................................................4-11
PASS-Key
®III+ Electronic Immobilizer...............2-22
PASS-Key®III+ Electronic Immobilizer
Operation...................................................2-23
9

Tire
Pressure Light.............................................3-43
Tires.............................................................5-62
Aluminum or Chrome-Plated Wheels,
Cleaning...............................................5-113
Buying New Tires........................................5-80
Chains.......................................................5-86
Changing a Flat Tire....................................5-88
Cleaning...................................................5-114
Different Size..............................................5-82
If a Tire Goes Flat.......................................5-87
Ination - Tire Pressure................................5-70
Inspection and Rotation................................5-78
Installing the Spare Tire................................5-94
Pressure Monitor Operation...........................5-74
Pressure Monitor System..............................5-72
Removing the Flat Tire.................................5-94
Removing the Spare Tire and Tools...............5-89
Secondary Latch System............................5-100
Spare Tire................................................5-107
Storing a Flat or Spare Tire and Tools..........5-103
Tire Sidewall Labeling..................................5-63
Tire Terminology and Denitions....................5-67
Uniform Tire Quality Grading.........................5-82
Wheel Alignment and Tire Balance.................5-84
Wheel Replacement.....................................5-84Tires (cont.)
When It Is Time for New Tires......................5-79
Tow/Haul Mode ...............................................2-35
Tow/Haul Mode Light.......................................3-49
Towing
Recreational Vehicle.....................................4-44
Towing a Trailer..........................................4-52
Your Vehicle...............................................4-44
Traction
StabiliTrak
®System....................................... 4-6
Trailer
Recommendations.......................................4-73
Transmission
Fluid, Automatic..................................5-21, 5-24
Transmission Operation, Automatic....................2-29
Trip Odometer................................................3-36
Turn and Lane-Change Signals.......................... 3-7
Turn Signal/Multifunction Lever........................... 3-7
U
Ultrasonic Rear Parking Assist (URPA)...............2-53
Uniform Tire Quality Grading............................5-82
Universal Home Remote System.......................2-68
Operation...................................................2-68
13