brake GMC SIERRA 2007 Owner's Guide

Leaving Your Vehicle With the Engine
Running
{CAUTION:
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 rmly set.
If you have four-wheel drive and your
transfer case is in NEUTRAL, your vehicle
will be free to roll, even if your shift lever
is in PARK (P). So be sure the transfer
case is in a drive gear — not in NEUTRAL.
CAUTION: (Continued)
CAUTION: (Continued)
And, if you leave the vehicle with the
engine running, it could overheat and
even catch re. You or others could be
injured. Do not leave your vehicle with the
engine running unless you have to.
If you have to leave your vehicle with the engine
running, be sure your vehicle is in PARK (P)
and the parking brake is rmly 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 rst pulling it toward you. If
you can, it means that the shift lever was not
fully locked into PARK (P).
164

Torque Lock
If you are parking on a hill and you do not 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 nd 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 nd out how, seeShifting Into
Park (P) on page 163.
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, then you will be able to
pull the shift lever out of PARK (P).
Shifting Out of Park (P)
Your vehicle has an automatic transmission shift
lock control system which locks the shift lever
in PARK (P) when the ignition is in the LOCK. You
have to fully apply your regular brakes before
you can shift from PARK (P) when the ignition is
in RUN. SeeAutomatic Transmission Operation on
page 138.
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. Move the shift lever into another gear.
165

Running the Engine While Parked
It is better not to park with the engine running. But if
you ever have to, here are some things to know.
{CAUTION:
Idling the engine with the climate control
system off could allow dangerous exhaust
into your vehicle. See the earlier caution
underEngine Exhaust on page 167.
Also, idling in a closed-in place can let
deadly carbon monoxide (CO) into your
vehicle even if the climate control 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.
SeeWinter Driving on page 418.
{CAUTION:
It can be dangerous to get out of your
vehicle if the shift lever is not fully in
PARK (P) with the parking brake rmly
set. Your vehicle can roll. Do not leave
your vehicle when the engine is running
unless you have to. If you have left the
engine running, the vehicle can move
suddenly. You or others could be injured.
To be sure your vehicle will not move,
even when you are on fairly level ground,
always set the parking brake and move
the shift lever to PARK (P).
168

{CAUTION:
Four-wheel drive vehicles with the transfer
case in NEUTRAL will allow the vehicle to
roll, even if the shift lever is in PARK (P).
So, be sure the transfer case is in a drive
gear — not in NEUTRAL. Always set the
parking brake.
Follow the proper steps to be sure your vehicle
will not move. SeeShifting Into Park (P) on
page 163.
If you are pulling a trailer, seeTowing a Trailer
on page 445.
Mirrors
Manual Rearview Mirror
Pull or push the tab under the inside rearview
mirror to adjust it to the night or daytime setting. In
the nighttime setting, the glare from headlamps
behind the vehicle will be less intense.
Automatic Dimming Rearview Mirror
with OnStar
®, Compass and
Temperature Display
Your vehicle may have this feature. When on, the
automatic dimming mirror dims to the proper level
to minimize glare from lights behind you after dark.
The mirror has a dual display in the upper right
corner of the mirror face that shows the compass
reading and the outside temperature.
Control buttons for the OnStar
®system are at the
bottom of the mirror. SeeOnStar®System on
page 180for more information about the services
OnStar
®provides.
P(On/Off):This is the on/off button.
169

Warning Lights, Gages, and Indicators..... 246
Instrument Panel Cluster........................... 247
Speedometer and Odometer...................... 248
Trip Odometer........................................... 248
Tachometer............................................... 248
Safety Belt Reminder Light........................ 249
Passenger Safety Belt Reminder Light
(1500 Series)......................................... 249
Airbag Readiness Light............................. 250
Airbag Off Light......................................... 250
Passenger Airbag Status Indicator............. 252
Charging System Light.............................. 254
Voltmeter Gage......................................... 255
Brake System Warning Light..................... 256
Anti-Lock Brake System Warning Light...... 257
StabiliTrak
®Indicator Light......................... 258
Engine Coolant Temperature Gage............ 258
Tire Pressure Light.................................... 259
Malfunction Indicator Lamp........................ 260
Oil Pressure Gage..................................... 263
Oil Pressure Light..................................... 264
Security Light............................................ 264Fog Lamp Light......................................... 265
Cruise Control Light.................................. 265
Highbeam On Light................................... 265
Four-Wheel-Drive Light.............................. 265
Tow/Haul Mode Light................................ 266
Fuel Gage................................................. 266
Low Fuel Warning Light............................ 267
Driver Information Center (DIC).................. 267
DIC Operation and Displays
(With DIC Buttons)................................. 268
DIC Operation and Displays
(Without DIC Buttons)............................ 275
DIC Warnings and Messages.................... 279
DIC Vehicle Customization
(With DIC Buttons)................................. 289
Audio System(s)......................................... 300
Setting the Time........................................ 301
AM-FM Radio............................................ 304
Radio with CD (Base)............................... 306
Radio with CD (MP3)................................ 312
Radio with CD and DVD (MP3) ................. 322
Section 3 Instrument Panel
204

The main components of your instrument panel are the following:
A. Air Outlets. SeeOutlet Adjustment on
page 245.
B. Turn Signal/Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 212.
C. Driver Information Center (DIC) Buttons. See
Driver Information Center (DIC) on page 267.
D. Hazard Warning Flasher Button. SeeHazard
Warning Flashers on page 211.
E. Instrument Panel Cluster. SeeInstrument
Panel Cluster on page 247.
F. Shift Lever. SeeAutomatic Transmission
Operation on page 138. Tow/Haul Selector
Button (If Equipped). SeeTow/Haul Mode on
page 144. Range Selection Mode (Allison
Transmission
®and Hydra-Matic®6-Speed
Button (If Equipped). SeeAutomatic
Transmission Operation on page 138.
G. Audio System. SeeAudio System(s) on
page 300.
H. Instrument Panel Storage Area. SeeInstrument
Panel Storage Area on page 197.I. Integrated Trailer Brake Controller (If
Equipped). SeeTowing a Trailer on page 445.
J. Exterior Lamp Controls. SeeExterior Lamps
on page 221.
K. Hood Release. SeeHood Release on
page 497.
L. Parking Brake. SeeParking Brake on
page 162.
M. Dome Lamp Override Button. SeeDome Lamp
Override on page 226. Dome Lamp Knob.
SeeDome Lamps on page 226. Fog Lamp
Button (If Equipped). SeeFog Lamps on
page 224.
N. Cruise Control Buttons. SeeCruise Control on
page 218.
O. Tilt Wheel Lever. SeeTilt Wheel on page 212.
P. Horn. SeeHorn on page 211.
Q. Automatic Transfer Case Control (If Equipped).
SeeFour-Wheel Drive on page 147.
207

R. Ashtray (If Equipped). SeeAshtray(s) and
Cigarette Lighter on page 233.
S. StabiliTrak
®Button (If Equipped). See
StabiliTrak®System on page 381. Ultrasonic
Rear Park Assist Disable Button (If Equipped).
SeeUltrasonic Rear Parking Assist (URPA)
on page 228. Pedal Adjust Button (If Equipped).
SeeAdjustable Throttle and Brake Pedal on
page 136. Heated Windshield Washer
Fluid Button (If Equipped).Windshield Washer
on page 217.
T. Accessory Power Outlet. SeeAccessory Power
Outlet(s) on page 232.U. Climate Control System. SeeClimate Control
System (With Air Conditioning ) on page 234or
Climate Control System (Heater Only) on
page 237andDual Automatic Climate Control
System on page 238.
V. Power Take Off (PTO) Control (If Equipped).
See Power Take Off (PTO) in the
DURAMAX
®Diesel Supplement Index.
W. Passenger Airbag Off Control (If Equipped).
SeeAirbag Off Switch on page 93.
X. Glove Box. SeeGlove Box on page 196.
208

E. Shift Lever. SeeAutomatic Transmission
Operation on page 138.
F. Tow/Haul Selector Button (If Equipped). See
Tow/Haul Mode on page 144.
G. Driver Information Center (DIC) Controls. See
Driver Information Center (DIC) on page 267.
H. Audio System. SeeAudio System(s) on
page 300.
I. Exterior Lamps Control. SeeExterior Lamps on
page 221.
J. Integrated Trailer Brake Controller (If
Equipped). SeeTowing a Trailer on page 445.
K. Dome Lamp Override Button. SeeDome
Lamp Override on page 226. Dome Lamp
Knob. SeeDome Lamps on page 226.
L. Automatic Transfer Case Control. (If Equipped).
SeeFour-Wheel Drive on page 147.
M. Hood Release. SeeHood Release on
page 497.
N. Parking Brake. SeeParking Brake on
page 162.
O. Cruise Control Buttons. SeeCruise Control on
page 218.
P. Tilt Wheel Lever. SeeTilt Wheel on page 212.Q. Horn. SeeHorn on page 211.
R. Audio Steering Wheel Controls. SeeAudio
Steering Wheel Controls on page 368.
S. Climate Controls. SeeClimate Control System
(With Air Conditioning ) on page 234or
Climate Control System (Heater Only) on
page 237or Dual Automatic Climate Controls
(If Equipped). SeeDual Automatic Climate
Control System on page 238.
T. Accessory Power Outlets. SeeAccessory
Power Outlet(s) on page 232. Cigarette Lighter
(If Equipped). SeeAshtray(s) and Cigarette
Lighter on page 233.
U. StabiliTrak
®Button (If Equipped). See
StabiliTrak®System on page 381. Pedal Adjust
Button (If Equipped). SeeAdjustable Throttle
and Brake Pedal on page 136. Rear Park Assist
Disable Button (If Equipped). SeeUltrasonic
Rear Parking Assist (URPA) on page 228.
Heated Windshield Washer Fluid Button
(If Equipped). SeeWindshield Washer on
page 217.
V. Passenger Airbag Off Control (If Equipped).
SeeAirbag Off Switch on page 93.
W. Glove Box. SeeGlove Box on page 196.
210

Cruise Control
{CAUTION:
Cruise control can be dangerous where
you cannot drive safely at a steady speed.
So, do not 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
excessive wheel slip, and you could lose
control. Do not use cruise control on
slippery roads.
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).
When you apply your brakes, cruise control
is turned off.If your vehicle has an Allison
®automatic
transmission, see “Grade Braking and Cruise
Grade Braking (Allison Transmission
®) under
Tow/Haul Mode on page 144for an explanation of
how cruise control interacts with the range selection
mode, tow/haul and grade braking systems.
If your vehicle has the StabiliTrak
®™ system and
begins to limit wheel spin while you are using
cruise control, the cruise control will automatically
disengage. SeeStabiliTrak
®System on
page 381. When road conditions allow you to
safely use it again, you may turn the cruise
control back on.
The cruise control
buttons are located on
left side of the
steering wheel.
218

T(On/Off):This button can both activate and
turn off the system. The indicator light is on
when cruise control is on and turns off when cruise
control is off.
+ RES (Resume/Accelerate):Press this button
to make the vehicle accelerate or resume to
a previously set speed.
SET−(Set/Coast):Press this button to set the
speed or make the vehicle decelerate.
[(Cancel):Press this button to cancel cruise
control without erasing the set speed from
memory.
Setting Cruise Control
Cruise control will not work if the parking brake
is set, or if the master cylinder brake uid level
is low.
The cruise control light on the instrument panel
cluster will come on after the cruise control
has been set to the desired speed.
{CAUTION:
If you leave your cruise control on when
you are not using cruise, you might hit a
button and go into cruise when you do not
want to. You could be startled and even
lose control. Keep the cruise control switch
off until you want to use cruise control.
1. Press the cruise control On/Off button.
2. Get up to the desired speed.
3. Press the SET−button located on the steering
wheel and release it.
4. Take your foot off the accelerator.
Resuming a Set Speed
Suppose you set the cruise control at a desired
speed and then you apply the brake. This shuts off
the cruise control. But you do not need to reset it.
Once you are driving about 25 mph (40 km/h) or
more, press the +RES button on the steering
wheel. The vehicle will go back to the previous set
speed and stay there.
219