Page 359 of 478

Black plate (31,1)GMC Acadia/Acadia Denali Owner Manual - 2011
Vehicle Care 10-31
License Plate Lamp
To replace one of these bulbs:
1. Remove the two screws holdingeach of the license plate lamps
to the liftgate trim.
2. Turn and pull the license plate
lamp forward through the lift gate
trim opening. 3. Turn the bulb socket
counterclockwise and pull the
bulb straight out of the socket.
4. Install the new bulb.
5. Reverse steps 1 through 3 to reinstall the license plate lamp.
Replacement Bulbs
Exterior Lamp Bulb
Number
License Plate Lamp 194LL
For replacement bulbs not listed
here, contact your dealer.
Electrical System
High Voltage Devices and
Wiring
{WARNING
Exposure to high voltage
can cause shock, burns, and
even death. The high voltage
components in the vehicle can
only be serviced by technicians
with special training.
High voltage components are
identified by labels. Do not
remove, open, take apart,
or modify these components.
High voltage cable or wiring has
orange covering. Do not probe,
tamper with, cut, or modify high
voltage cable or wiring.
Page 360 of 478

Black plate (32,1)GMC Acadia/Acadia Denali Owner Manual - 2011
10-32 Vehicle Care
Electrical System
Overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.
When the current electrical load
is too heavy, the circuit breaker
opens and closes, protecting the
circuit until the current load returns
to normal or the problem is fixed.
This greatly reduces the chance of
circuit overload and fire caused by
electrical problems.
Fuses and circuit breakers protect
the following in the vehicle:
.Headlamp Wiring
.Windshield Wiper Motor
.Power Windows and Other
Power Accessories
Replace a bad fuse with a new one
of the identical size and rating.
If there is a problem on the road
and a fuse needs to be replaced,
the same amperage fuse can be borrowed. Choose some feature of
the vehicle that is not needed to use
and replace it as soon as possible.
Headlamp Wiring
An electrical overload may cause
the lamps to go on and off, or in
some cases to remain off. Have
the headlamp wiring checked right
away if the lamps go on and off or
remain off.
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop until the motor cools
and will then restart.
Although the circuit is protected
from electrical overload, overload
due to heavy snow or ice may
cause wiper linkage damage.
Always clear ice and heavy snow
from the windshield before using
the windshield wipers.
If the overload is caused by an
electrical problem and not snow
or ice, be sure to get it fixed.
Fuses and Circuit
Breakers
The wiring circuits in your vehicle
are protected from short circuits
by a combination of fuses, circuit
breakers and fusible thermal links.
This greatly reduces the chance of
fires caused by electrical problems.
Look at the silver-colored band
inside the fuse. If the band is broken
or melted, replace the fuse. Be sure
you replace a bad fuse with a new
one of the identical size and rating.
Fuses of the same amperage
can be temporarily borrowed from
another fuse location, if a fuse goes
out. Replace the fuse as soon as
you can.
Page 470 of 478

Black plate (6,1)GMC Acadia/Acadia Denali Owner Manual - 2011
i-6 INDEX
H
Halogen Bulbs . . . . . . . . . . . . . . . . 10-30
Hazard Warning Flashers . . . . . . . 6-3
Head Restraints . . . . . . . . . . . . . . . . 3-2
Head Up Display . . . . . . . . . . . . . . 5-33
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . 10-30
Bulb Replacement . . . . . . . . . . 10-30
Daytime Running
Lamps/Automatic
Headlamp System . . . . . . . . . . . 6-3
Flash-to-Pass . . . . . . . . . . . . . . . . . . 6-3
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . 10-30
High-Beam On Light . . . . . . . . . . 5-24
High/Low Beam Changer . . . . . . 6-2
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . 3-9 Heated Mirrors . . . . . . . . . . . . . . . . . 2-18
Heater
Engine . . . . . . . . . . . . . . . . . . . . . . . . 9-20
Heating and Air Conditioning . . . 8-1
High Voltage Devices and Wiring . . . . . . . . . . . . . . . . . . . . . . . 10-31
High-Beam On Light . . . . . . . . . . . 5-24
Highway Hypnosis . . . . . . . . . . . . . . 9-8
Hill and Mountain Roads . . . . . . . . 9-8
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
How to Wear Safety Belts
Properly . . . . . . . . . . . . . . . . . . . . . . 3-19
I
Ignition Positions . . . . . . . . . . . . . . 9-18
Ignition Transmission LockCheck . . . . . . . . . . . . . . . . . . . . . . . 10-28
Immobilizer . . . . . . . . . . . . . . . . . . . . 2-15 Infants and Young Children,
Restraints . . . . . . . . . . . . . . . . . . . . 3-51
Infotainment . . . . . . . . . . . . . . . . . . . . 7-1
Instrument Cluster . . . . . . . . . . . . . 5-12
Instrument Panel Storage Area . . . . . . . . . . . . . . . . . . 4-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . iii
J
Jump Starting . . . . . . . . . . . . . . . . . 10-83
K
Key and Lock Messages . . . . . . . 5-41
Keyless Entry
Remote (RKE) System . . . . . . . . 2-3
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Page 478 of 478

Black plate (14,1)GMC Acadia/Acadia Denali Owner Manual - 2011
i-14 INDEX
Vehicle CareStoring the Tire Sealant
and Compressor Kit . . . . . . . 10-70
Tire Pressure . . . . . . . . . . . . . . . 10-45
Vehicle Identification Service Parts IdentificationLabel . . . . . . . . . . . . . . . . . . . . . . . . 12-1
Ventilation, Air . . . . . . . . . . . . . . . . . 8-12
Visors . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Voltage Devices, and Wiring . . . . . . . . . . . . . . . . . . . . . . . 10-31
Voltmeter Gauge . . . . . . . . . . . . . . 5-14
W
Warning Brake System Light . . . . . . . . . . . 5-20
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . 5-11
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . iv Cautions and Danger . . . . . . . . . . . .iv
Hazard Flashers . . . . . . . . . . . . . . . 6-3
Washer Fluid . . . . . . . . . . . . . . . . . 10-23
Washer Fluid Messages . . . . . . . 5-46 Wheels
Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . 10-59
Different Size . . . . . . . . . . . . . . . 10-56
Replacement . . . . . . . . . . . . . . . 10-59
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-53
Where to Put the Restraint . . . . 3-55
Windows . . . . . . . . . . . . . . . . . . . . . . 2-20 Power . . . . . . . . . . . . . . . . . . . . . . . . 2-20
Windshield
Replacement . . . . . . . . . . . . . . . 10-29
Wiper/Washer . . . . . . . . . . . . . . . . . 5-5
Winter Driving . . . . . . . . . . . . . . . . . . 9-9
Wiper Blade Replacement . . . . 10-29
Wipers Rear Washer . . . . . . . . . . . . . . . . . . 5-6
Wiring, High Voltage Devices . . . . . . . . . . . . . . . . . . . . . 10-31