2010 GMC YUKON DENALI ECO mode

Trailer Wiring Harness
Heavy-Duty Trailer Wiring Harness Package
The vehicle is equipped with the seven-wire trailer
towing harness. This harness with a seven-pin universal
trailer connector is attached to a bracket on the hitch
platform.The seven-wire harness contains the following trailer
circuits:
.Yellow: Left Stop/Turn Signal
.Dark Green: Right Stop/Turn Signal
.Brown: Taillamps
.White: Ground
.Light Green: Back-up Lamps
.Red: Battery Feed*
.Dark Blue: Trailer Brake*
*The fuses for these two circuits are installed in the
underhood electrical center, but the wires are not
connected. They should be connected by your
dealer/retailer or a qualified service center.
If charging a remote (non-vehicle) battery, press the
tow/haul mode button located at the end of the shift
lever. This will boost the vehicle system voltage and
properly charge the battery. If the trailer is too light for
tow/haul mode, turn on the headlamps as a second way
to boost the vehicle system and charge the battery.
5-59

Intended Outboard Sidewall:The side of an
asymmetrical tire, that must always face outward
when mounted on a vehicle.
Kilopascal (kPa)
:The metric unit for air
pressure.
Light Truck (LT‐Metric) Tire
:A tire used on light
duty trucks and some multipurpose passenger
vehicles.
Load Index
:An assigned number ranging from
1 to 279 that corresponds to the load carrying
capacity of a tire.
Maximum Inflation Pressure
:The maximum
air pressure to which a cold tire can be inflated.
The maximum air pressure is molded onto the
sidewall.
Maximum Load Rating
:The load rating for a tire
at the maximum permissible inflation pressure for
that tire.
Maximum Loaded Vehicle Weight
:The sum of
curb weight, accessory weight, vehicle capacity
weight, and production options weight. Normal Occupant Weight
:The number of
occupants a vehicle is designed to seat multiplied
by 150 lbs (68 kg). See Loading the Vehicle
on
page 5‑31
.
Occupant Distribution
:Designated seating
positions.
Outward Facing Sidewall
:The side of an
asymmetrical tire that has a particular side that
faces outward when mounted on a vehicle.
The side of the tire that contains a whitewall,
bears white lettering, or bears manufacturer,
brand, and/or model name molding that is higher
or deeper than the same moldings on the other
sidewall of the tire.
Passenger (P-Metric) Tire
:A tire used on
passenger cars and some light duty trucks and
multipurpose vehicles.
Recommended Inflation Pressure
:Vehicle
manufacturer's recommended tire inflation
pressure as shown on the tire placard. See
Inflation - Tire Pressure
on page 6‑64and Loading
the Vehicle
on page 5‑31.
6-62

Inflation - 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‐inflation or over‐inflation is all right.
It is not. If your tires do not have enough air
(under‐inflation), you can get the following:
.Too much flexing
.Too much heat
.Tire overloading
.Premature or irregular wear
.Poor handling
.Reduced fuel economy If your tires have too much air (over‐inflation),
you can get the following:
.Unusual wear
.Poor handling
.Rough ride
.Needless damage from road hazards
A vehicle specific Tire and Loading Information
label is attached to your vehicle. This label shows
your vehicle's original equipment tires and the
correct inflation pressures for your tires when they
are cold. The recommended cold tire inflation
pressure, shown on the label, is the minimum
amount of air pressure needed to support your
vehicle's maximum load carrying capacity.
For additional information regarding how much
weight your vehicle can carry, and an example of
the Tire and Loading Information label, see
Loading the Vehicle
on page 5‑31. How you load
your vehicle affects vehicle handling and ride
comfort. Never load your vehicle with more weight
than it was designed to carry.
6-64

TPMS Sensor Matching Process
Each TPMS sensor has a unique identification code.
Any time you rotate your vehicle's tires or replace one
or more of the TPMS sensors, the identification codes
will need to be matched to the new tire/wheel position.
The sensors are matched to the tire/wheel positions in
the following order: driver side front tire, passenger
side front tire, passenger side rear tire, and driver side
rear tire using a TPMS diagnostic tool. See your dealer/
retailer for service.
The TPMS sensors can also be matched to each
tire/wheel position by increasing or decreasing the tire's
air pressure. If increasing the tire's air pressure, do not
exceed the maximum inflation pressure indicated on the
tire's sidewall.
To decrease air-pressure out of a tire you can use the
pointed end of the valve cap, a pencil-style air pressure
gage, or a key.
You have two minutes to match the first tire/wheel
position, and five minutes overall to match all four
tire/wheel positions. If it takes longer than two minutes,
to match the first tire and wheel, or more than
five 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
QandKon the Remote Keyless Entry
(RKE) transmitter at the same time for
approximately five 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 five seconds,
or until a horn chirp sounds. The horn chirp, which
may take up to 30 seconds to sound, confirms that
the sensor identification 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.
6-70

Engine (cont.)Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40
Fan Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-35
Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Overheated Protection Operating Mode . . . . . . . . . . 6-35
Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-32
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
Engine Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Event Data Recorders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-18
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Extender, Safety Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-48
Exterior Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
F
Features Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Filter Engine Air Cleaner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20
Finish Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-105
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6 Flashers, Hazard Warning . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-79
Flat Tire, Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-80
Flat Tire, Storing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-94
Fluid
Automatic Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22
Power Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-36
Windshield Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-37
Fog Lamps Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-49
Front Reading Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-5 Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
California Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
E85 (85% Ethanol) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . 6-11
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Fuels in Foreign Countries . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Gage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-41
Gasoline Octane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Gasoline Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Low Fuel Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42
Management, Active . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29
i - 6

Lights (cont.)Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . 4-29
Safety Belt Reminders . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39
StabiliTrak
®Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-33
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40
Loading Your Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31
Locking Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8
Locks Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Programmable Automatic Door Locks . . . . . . . . . . . . 3-10
Rear Door Security Locks . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Low Fuel Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42
Lower Anchors and Tethers for Children . . . . . . . . . . . 2-59
Lumbar Power Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
M
Maintenance ScheduleMaintenance Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15
Maintenance Replacement Parts . . . . . . . . . . . . . . . . . 7-13
Owner Checks and Services . . . . . . . . . . . . . . . . . . . . . . . 7-9
Recommended Fluids and Lubricants . . . . . . . . . . . . 7-11
Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Malfunction Indicator Lamp . . . . . . . . . . . . . . . . . . . . . . . . 4-35
Memory Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Message DIC Warnings and Messages . . . . . . . . . . . . . . . . . . . . . 4-56
Mirrors Automatic Dimming Rearview . . . . . . . . . . . . . . . . . . . . . 3-42
Manual Rearview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42
Outside Convex Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44
Outside Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44
Outside Power Foldaway Mirrors . . . . . . . . . . . . . . . . . 3-42
Park Tilt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44
MP3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-94, 4-101
i - 9

N
Navigation System, Privacy . . . . . . . . . . . . . . . . . . . . . . . . 8-19
Navigation/Radio System, see NavigationManual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-110
Net, Convenience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-64
New Vehicle Break-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24
O
Object Detection, Side Blind Zone Alert (SBZA) . . . 3-47
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12 Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Engine Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
Pressure Gage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-38
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39
Older Children, Restraints . . . . . . . . . . . . . . . . . . . . . . . . . 2-49
Online Owner Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-5
OnStar, Privacy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-19
OnStar
®System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
Operation, Universal Home Remote System . . . . . . . 3-55
Outlet Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23 Outlets
Accessory Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
Outside Convex Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44
Power Foldaway Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42
Overheated Engine Protection Operating Mode . . . . 6-35
Owner Checks and Services . . . . . . . . . . . . . . . . . . . . . . . . .7-9
Owners, Canadian . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
P
Paint, Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-105
Park
Shifting Into . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37
Shifting Out of . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38
Park Aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45
Park Tilt Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44
Parking Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45
Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36
Over Things That Burn . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39
PASS-Key
®III+ Electronic Immobilizer . . . . . . . . . . . . . 3-22
PASS-Key®III+ Electronic Immobilizer
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . 4-29
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . . . 2-85
i - 10

Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34
Tow/Haul Mode Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40
TowingRecreational Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-37
Towing a Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-42
Trailer Recommendations . . . . . . . . . . . . . . . . . . . . . . . . 5-60
Your Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-37
Traction StabiliTrak
®System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Trailer Towing Recommendations . . . . . . . . . . . . . . . . . . . . . . . . 5-60
Transmission Fluid, Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22
Transmission Operation, Automatic . . . . . . . . . . . . . . . . 3-30
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . 8-10
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . .4-5
Turn Signal/Multifunction Lever . . . . . . . . . . . . . . . . . . . . . .4-4
U
Ultrasonic Rear Parking Assist (URPA) . . . . . . . . . . . . 3-45
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . . 6-76
Universal Home Remote System . . . . . . . . . . . . . . . . . . 3-55 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-55
V
VehicleControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31
Remote Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Running While Parked . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Vehicle Customization, DIC . . . . . . . . . . . . . . . . . . . . . . . . 4-66
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . 8-18
Vehicle Identification Number (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-106
Service Parts Identification Label . . . . . . . . . . . . . . . .6-106
Ventilation Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
Voltmeter Gage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
i - 15