
2010 GMC Sierra Denali Owner ManualM
In Brief. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Instrument Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Initial Drive Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Vehicle Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
Performance and Maintenance . . . . . . . . . . . . . . . . . . 1-24
Seats and Restraint System . . . . . . . . . . . . . . . . . . . . . . 2-1
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Safety Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Child Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
Airbag System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-56
Restraint System Check . . . . . . . . . . . . . . . . . . . . . . . . . 2-73
Features and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Doors and Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
Theft-Deterrent Systems . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Starting and Operating Your Vehicle . . . . . . . . . . . . . 3-22
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39 Object Detection Systems . . . . . . . . . . . . . . . . . . . . . . . 3-43
Universal Home Remote System . . . . . . . . . . . . . . . . 3-51
Storage Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-57
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-61
Instrument Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Instrument Panel Overview . . . . . . . . . . . . . . . . . . . . . . . 4-3
Climate Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Warning Lights, Gages, and Indicators . . . . . . . . . . 4-27
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . 4-44
Audio System(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-76
Driving Your Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Your Driving, the Road, and the Vehicle . . . . . . . . . . 5-2
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-38
Service and Appearance Care . . . . . . . . . . . . . . . . . . . 6-1
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Checking Things Under the Hood . . . . . . . . . . . . . . . 6-14
All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-49
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-50

Section 1 In Brief
Instrument Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Initial Drive Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Remote Keyless Entry (RKE) System . . . . . . . . . . . 1-4
Remote Vehicle Start . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Seat Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Heated Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Heated and Ventilated Seats . . . . . . . . . . . . . . . . . . . . 1-9
Head Restraint Adjustment . . . . . . . . . . . . . . . . . . . . 1-10
Safety Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Sensing System for Passenger Airbag . . . . . . . . . 1-11
Mirror Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Steering Wheel Adjustment . . . . . . . . . . . . . . . . . . . . 1-12
Throttle and Brake Pedal Adjustment . . . . . . . . . . 1-13
Interior Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Exterior Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
Windshield Wiper/Washer . . . . . . . . . . . . . . . . . . . . . . 1-15
Climate Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17 Vehicle Features
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
Radio(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
Satellite Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
Portable Audio Devices . . . . . . . . . . . . . . . . . . . . . . . . 1-19
Steering Wheel Controls . . . . . . . . . . . . . . . . . . . . . . . 1-20
Bluetooth
®. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
Navigation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
Driver Information Center (DIC) . . . . . . . . . . . . . . . . 1-21
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
Rear Vision Camera (RVC) . . . . . . . . . . . . . . . . . . . . 1-23
Ultrasonic Parking Assist . . . . . . . . . . . . . . . . . . . . . . 1-23
Power Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
Universal Remote System . . . . . . . . . . . . . . . . . . . . . 1-23
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
Performance and Maintenance . . . . . . . . . . . . . . . . . .1-24
StabiliTrak
®. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
Tire Pressure Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
Engine Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 1-25
Fuel E85 (85% Ethanol) . . . . . . . . . . . . . . . . . . . . . . . 1-26
Driving for Better Fuel Economy . . . . . . . . . . . . . . . 1-26
Roadside Assistance Program . . . . . . . . . . . . . . . . . 1-27
OnStar
®. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27
1-1

Windows
Turn the hand crank on each door to manually raise or
lower the manual windows.
Power Windows
Crew Cab ShownIf available, the power
window switches are
located on each of the
side doors in the front and
rear, if equipped.
The driver door has a switch for the passenger window
and rear windows as well.
Press the switch to lower the window. Pull the switch up
to raise it.
For more information, see:
.Windows on page 3‑15.
.Power Windows on page 3‑16.
Power Sliding Rear Window
On vehicles with a power
sliding rear window, the
switch is located in the
overhead console.
The power sliding rear window cannot be operated
manually. Push or pull the switch to open or close the
window.
1-6

Windshield Wiper/Washer
8:Single wipe, turn to8, then release. Several
wipes, hold the band on
8longer.
9: Turns the windshield wipers off.
6:Turn the band up for more frequent wipes or down
for less frequent wipes.
6: Slow wipes.
?:Fast wipes.
L(Washer Fluid): Push the paddle at the top of the
lever to spray washer fluid on the windshield.
See Windshield Wipers
on page 4‑6andWindshield
Washer on page 4‑6.
Climate Controls
These systems control the heating, cooling, and
ventilation.
Climate Control System
(With Air Conditioning)
A. Fan Control
B. Temperature Control
C. Air Delivery Mode Control
D. Air Conditioning E. Outside Air
F. Air Recirculation
G. Rear Window Defogger
1-15

Climate Control System (With Heater Only)
A. Fan Control
B. Temperature Control
C. Air Delivery Mode Control
Dual Automatic Climate Control System
A. Driver and Passenger Temperature Controls
B. Fan Control
C. AUTO
D. Defrost E. Air Recirculation
F. Outside Air G. Air Delivery Mode
Control
H. Display I. Power Button
J. Rear Window Defogger
K. Air Conditioning
L. PASS (Passenger)
See Climate Control System (With Air Conditioning)
on
page 4‑17or Climate Control System (With Heater
Only)on page 4‑20and Dual Automatic Climate
Control System on page 4‑21.
1-16

A forward-facing child
seat (B) provides restraint
for the child's body with
the harness.
A booster seat (C-D) is a child restraint designed to
improve the fit of the vehicle's safety belt system.
A booster seat can also help a child to see out the
window.
2-40

{WARNING:
Airbags inflate with great force, faster than the
blink of an eye. Anyone who is up against, or very
close to, any airbag when it inflates can be
seriously injured or killed. Do not sit unnecessarily
close to the airbag, as you would be if you were
sitting on the edge of your seat or leaning forward.
Safety belts help keep you in position before and
during a crash. Always wear your safety belt,
even with airbags. The driver should sit as far
back as possible while still maintaining control of
the vehicle.
Occupants should not lean on or sleep against the
door or side windows in seating positions with
seat-mounted side impact airbags and/or roof-rail
airbags.
{WARNING:
Children who are up against, or very close to, any
airbag when it inflates can be seriously injured or
killed. Airbags plus lap-shoulder belts offer
protection for adults and older children, but not for
young children and infants. Neither the vehicle's
safety belt system nor its airbag system is
designed for them. Young children and infants
need the protection that a child restraint system
can provide. Always secure children properly in
your vehicle. To read how, seeOlder Children
on
page 2‑33
or Infants and Young Childrenon
page 2‑36
.
2-57

Driver Side shown, Passenger Side similar
The roof-rail airbags for the driver, right front passenger,
and second row outboard passengers are in the ceiling
above the side windows.
{WARNING:
If something is between an occupant and an
airbag, the airbag might not inflate properly or it
might force the object into that person causing
severe injury or even death. The path of an
inflating airbag must be kept clear. Do not put
anything between an occupant and an airbag, and
do not attach or put anything on the steering
wheel hub or on or near any other airbag
covering.
Do not use seat accessories that block the
inflation path of a seat-mounted side impact
airbag.
Never secure anything to the roof of a vehicle with
roof-rail airbags by routing a rope or tie down
through any door or window opening. If you do,
the path of an inflating roof-rail airbag will be
blocked.
2-60