2003 GMC SIERRA DENALI brake

Move the lever up as far as it will go.
3. Turn the ignition key to LOCK.
4. Remove the key and take it with you. If you can
leave your vehicle with the ignition key in your
hand, your vehicle is
in PARK (P).
Leaving Your Vehicle With the Engine
Running
It can be dangerous to leave your vehicle with
the engine running. Your vehicle could move
suddenly if the shift lever is not fully
in
PARK (P) with the parking brake firmly set.
And, if you leave the vehicle with the engine
running,
it could overheat and even catch fire.
You or others could be injured. Don’t leave
your vehicle with the engine running.
If you have to leave your vehicle with the engine
running, be sure your vehicle is in PARK
(P) and the
parking brake
is firmly set before you leave it. After you
move the shift lever into PARK
(P), hold the regular
brake pedal down. Then, see
if you can move the shift
lever away from PARK
(P) without first pulling it
toward you.
If you can, it means that the shift lever
wasn’t fully locked into PARK (P).
2-24

Torque Lock
If you are parking on a hill and you don’t shift your
transmission into PARK
(P) properly, the weight of the
vehicle may put too much force on the parking pawl
in the transmission. You may find it difficult to pull the
shift lever out of PARK
(P). This is called ”torque
lock.” To prevent torque lock, set the parking brake and
then shift into PARK (P) properly before you leave
the driver’s seat.
To find out how, see Shifting lnto
Park
(P) on page 2-23.
When you are ready to drive, move the shift lever out of
PARK
(P) before you release the parking brake.
If torque lock does occur, you may need to have another
vehicle push yours a little uphill to take some of the
pressure from the parking pawl in the transmission,
so
you can pull the shift lever out of PARK (P).
Shifting Out of Park (P)
Your vehicle has an automatic transmission shift lock
control system. You have to fully apply your regular
brakes before you can shift from PARK (P) when the
ignition
is in RUN. See Automatic Transmission
Operation on page
2- 18.
If you cannot shift out of PARK (P), ease pressure on
the shift lever and push the shift lever all the way up into
PARK
(P) as you maintain brake application. Then,
move the shift lever into the gear you want.
If you ever hold the brake pedal down but still can’t shift
out of PARK (P), try this:
1. Turn the key to LOCK.
2. Apply and hold the brake until the end of Step 4.
3. Shift the vehicle to NEUTRAL (N).
4. Start the vehicle and then shift to the drive gear
5. Have the system fixed as soon as you can.
you want.
2-25

Running Your Engine While You
Are Parked
It’s better not to park with the engine running. But if you
ever have
to, here are some things to know.
Idling the engine with the climate control
system
off could allow dangerous exhaust into
your vehicle. See the earlier Caution under
“Engine Exhaust.’’
Also, idling in a closed-in place can let deadly
carbon monoxide (CO) into your vehicle even if
the fan is at the highest setting. One place
this
can happen is a garage. Exhaust - with
CO
- can come in easily. NEVER park in a
garage with the engine running.
Another closed-in place can be
a blizzard. See
“Winter Driving’’ in the Index.
It can be d,,,gersus to b-. dt of your vehicle
if the shift lever
is not fully in PARK (P) with
the parking brake firmly set. Your vehicle can
roll. Don’t leave your vehicle when the engine
is running unless you have to. If you’ve left the
engine running, the vehicle can move suddenly. You or others could be injured.
To
be sure your vehicle won’t move, even when
you’re on fairly level ground, always set your parking brake and move the shift lever to
PARK (P).
Follow the proper steps to be sure your vehicle won’t
move. See
Shifting Into Park (P) on page 2-23.
If you’re pulling a trailer, see Towing a Trailer on
page 4-5 1.
2-27

Section 3 Instrument Panel
I~s~Pu~~~IP Panel OWWV~~W ............................... 3.2
Hazard Warning Flashers
................................ 3.3
Other Warning Devices ................................... 3.4
Horn
............................................................. 3.4
Tilt Wheel
..................................................... 3.4
Turn SignaVMultifunction Lever
......................... 3.5
Exterior Lamps
............................................. 3.11
Interior Lamps
.............................................. 3.15
Accessory Power Outlets
............................... 3.16
Ashtrays and Cigarette Lighter
........................ 3.17
Climate Controls
............................................ 3.18
Dual Automatic Climate Control System
........... 3.18
Warning Lights, Gages and Indicators
............. 3.24
Instrument Panel Cluster
................................ 3.25
Speedometer and Odometer
........................... 3.26
Tachometer
................................................ -3-26
Safety Belt Reminder Light
............................. 3.26
Air Bag Readiness Light
................................ 3-27
Passenger Air Bag Status Indicator
................. 3.30
Battery Warning Light
.................................... 3.33
Brake System Warning Light
.......................... 3.34
Anti-Lock Brake System Warning Light
............. 3.35
Air
Bag
Off Light .......................................... 3-28
Voltmeter Gage
............................................ 3-33
Engine Coolant Temperature Gage
..... ..... 3.36 Transmission Temperature
Gage
..................... 3.36
Malfunction Indicator Lamp
............................. 3.38
Oil Pressure Gage
........................................ 3-40
Cruise Control Light
...................................... 3.41
Tow/Haul Mode Light
.................................... 3-41
Fuel Gage
................................................... 3.42
Driver Information Center (DIC)
....................... 3.43
DIC Operation and Displays
........................... 3.43
DIC Warnings and Messages
......................... 3.53
Audio System(s)
............................................. 3.61
Setting the Time
...................... .......... 3.6 1
Radio with Cassette and CD ..... .............. 3.62
Rear Seat Audio (RSA)
............................. 3.76
CD Changer
................................................ 3-78
Theft-Deterrent Feature
................................. -3-81
Audio Steering Wheel Controls
....................... 3.81
Understanding Radio Reception
...................... 3-82
Care of Your Cassette Tape Player
................ -3-83
Care of Your CDs
......................................... 3.84
Care of Your CD Player
................................ 3.84
Fixed Mast Antenna
...................................... 3.84
XMTM Satellite Radio Antenna System
............. 3.84
DAB Radio Antenna System
........................... 3.84
Low Fuel Warning Light
................................. 3-42

Hazard Warning Flashers The main components of your instrument panel are the
following:
A. Dome Lamp Override Button
9. Exterior Lamp Control
C. Air Outlets
D. Storage Compartment
E. Multifunction Lever
F. Instrument Panel Cluster
G. Shift Lever
H. Tow/Haul Selector Switch (If Equipped)
I. Audio System
J. Comfort Control System
K. Instrument Panel Fuse Block
L. Hood Release
M. Audio Steering Wheel Controls
(If Equipped)
N. Center Instrument Panel Fuse Block
0. Tilt Lever
P. Parking Brake Release
Q. Compact Disc Changer (If Equipped)
R. Ashtray
S. Accessory Power Outlet
1. Air Bag Off Switch and 4-Wheel Steer Button
U. Glovebox Your hazard
warning flashers let you warn others. They
also let police know you have a problem. Your front
and rear turn signal lamps will flash on and
off.
3-3

Cruise Control
0 : off
I : On
t : Resume/Accelerate
R: Set With cruise control,
you can maintain
a speed of about
25 mph (40 km/h) or more without keeping your foot
on the accelerator.
This can really help on long trips. Cruise control does
not work at speeds below about
25 mph (40 km/h).
If you apply your brakes, or press the clutch pedal (if
equipped), the cruise control will disengage.
Cruise control can be dangerous where
you can’t drive safely at a steady speed.
So, don’t use your cruise control on
winding roads or in heavy traffic.
Cruise control can be dangerous on
slippery roads. On such roads, fast
changes
in tire traction can cause
needless wheel spinning, and you could
lose control. Don’t use cruise control on
slippery roads.
3-8

Setti- - Yruise Control
If you leave your cruise control on when you’re
not using cruise, you might hit a button and
go
into cruise when you don’t want to. You could
be startled and even lose control. Keep the
cruise control switch
off until you want to use
cruise control.
1. Move the cruise control switch to on
2. Get up to the speed you want.
3. Press in the set button at the end of the lever and
4. Take your foot off the accelerator pedal.
release it. The cruise light
on the instrument panel will illuminate
when the cruise control is engaged.
Resuming a Set Speed
Suppose you set your cruise control at a desired speed
and then you apply the brake or press the clutch
pedal (if equipped). This, of course, disengages the
cruise control. But you don’t need to reset it.
Once you’re going about 25 mph
(40 km/h) or more,
you can move the cruise control switch from on to
resume/accelerate briefly.
You’ll go right back up to your chosen speed and stay
there.
If you hold the switch at resume/accelerate briefly, the
vehicle will keep going faster until you release the switch
or apply the brake.
So unless you want to go faster,
don’t hold the switch at resume/accelerate.
3-9

Increasing Speed While Using Cruise
Control
There are two ways to go to a higher speed:
0
0
Use the accelerator pedal to get to the higher
speed. Press the set button at the end of the lever,
then release the button and the accelerator
pedal. You’ll now cruise at the higher speed.
Move the cruise switch from on to
resume/accelerate. Hold it there until you get up to
the speed you want, and then release the switch.
To increase your speed in very small amounts,
move the switch to resume/accelerate briefly. Each
time you do this, your vehicle will go about
1 mph (1.6 km/h) faster.
Reducing Speed While Using Cruise
Control
Press and hold the set button at the end of the
lever until you reach the lower speed you want, then
release it.
To slow down in very small amounts, press the set
button briefly. Each time you do this, you’ll go
about
1 mph (1.6 km/h) slower.
Passing Another Vehicle While Using
Cruise Control
Use the accelerator pedal to increase your speed.
When you take your foot
off the pedal, your vehicle will
slow down to the cruise control speed you set earlier.
Using Cruise Control on Hills
How well your cruise control will work on hills depends
upon your speed, load and the steepness of the
hills. When going up steep hills, you may want to step
on the accelerator pedal to maintain your speed.
When going downhill, you may have to brake or shift to
a lower gear to keep your speed down. Of course,
applying the brake takes you out of cruise control. Many
drivers find this to be too much trouble and don’t use
cruise control on steep hills.
Ending Cruise Control
There are two ways to turn off the cruise control:
Step lightly on the brake pedal.
Step lightly on the clutch pedal (if equipped).
0 Move the cruise control switch to off.
Erasing Speed Memory
When you turn off the cruise control or the ignition, your
cruise control set speed memory is erased.
3-1 0