automatic transmission HUMMER H3 2007 User Guide

Leaving Your Vehicle With the Engine
Running (Automatic Transmission)
{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. 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.
If you have to leave your vehicle with the engine
running, be sure your vehicle is in PARK (P)
and your parking brake is rmly set before you
leave it. After you have moved 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 pressing the shift
lever button. If you can, it means that the shift
lever was not fully locked into PARK (P).
Torque Lock (Automatic Transmission)
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) (Automatic Transmission) on page 117.
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).
118

Shifting Out of Park (P)
(Automatic Transmission)
Your vehicle has an automatic transmission shift
lock control system. You have to apply your
regular brake before you can shift from PARK (P)
when the ignition is in ON. SeeAutomatic
Transmission Operation on page 106.
If you cannot shift out of PARK (P), ease pressure
on the shift lever and push the shift lever all the way
into PARK (P) as you maintain brake application.
Then move the shift lever into the gear you wish.
Press the shift lever button before moving the
shift lever.
Parking Your Vehicle
(Manual Transmission)
Your vehicle has a manual transmission. Before
you get out of your vehicle, move the shift
lever into REVERSE (R), and rmly apply the
parking brake. Once the shift lever has been
placed into REVERSE (R) with the clutch pedal
pressed in, turn the ignition key to LOCK, remove
the key and release the clutch.
If you are parking on a hill, or if your vehicle is
pulling a trailer, seeTowing a Trailer on page 297.
Parking Over Things That Burn
{CAUTION:
Things that can burn could touch hot
exhaust parts under your vehicle and
ignite. Do not park over papers, leaves,
dry grass, or other things that can burn.
119

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 120.
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 281.
{CAUTION:
It can be dangerous to get out of your
vehicle if the automatic transmission 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 it is on fairly
level ground, always set the parking brake
and move the automatic transmission
shift lever to PARK (P), or the manual
transmission shift lever to NEUTRAL.
Follow the proper steps to be sure your vehicle will
not move. SeeShifting Into Park (P) (Automatic
Transmission) on page 117andParking Your
Vehicle (Manual Transmission) on page 119.
If you are pulling a trailer with your vehicle, see
Towing a Trailer on page 297.
121

Instrument Panel Overview........................ 152
Hazard Warning Flashers.......................... 154
Other Warning Devices............................. 154
Horn.......................................................... 154
Tilt Wheel.................................................. 154
Turn Signal/Multifunction Lever.................. 155
Turn and Lane-Change Signals................. 156
Headlamp High/Low-Beam Changer.......... 157
Flash-to-Pass............................................ 157
Windshield Wipers..................................... 157
Windshield Washer.................................... 158
Rear Window Wiper/Washer...................... 159
Cruise Control........................................... 159
Exterior Lamps.......................................... 162
Headlamps on Reminder........................... 164
Daytime Running Lamps (DRL)................. 164
Automatic Headlamp System..................... 165
Off-Road Lamps........................................ 166
Fog Lamps................................................ 167
Instrument Panel Brightness...................... 167
Dome Lamp.............................................. 167
Dome Lamp Override................................ 168
Exit Lighting.............................................. 168Reading Lamps......................................... 168
Electric Power Management...................... 168
Battery Run-Down Protection..................... 169
Accessory Power Outlet(s)........................ 169
Ashtray(s) and Cigarette Lighter................ 170
Climate Controls......................................... 170
Climate Control System............................. 170
Outlet Adjustment...................................... 173
Warning Lights, Gages, and Indicators..... 174
Instrument Panel Cluster........................... 175
Speedometer and Odometer...................... 176
Trip Odometer........................................... 176
Tachometer............................................... 176
Safety Belt Reminder Light........................ 177
Passenger Safety Belt Reminder Light....... 177
Airbag Readiness Light............................. 178
Passenger Airbag Status Indicator............. 179
Battery Warning Light................................ 181
Up-Shift Light (Manual Transmission)........ 181
Brake System Warning Light..................... 182
Anti-Lock Brake System
Warning Light........................................ 183
Section 3 Instrument Panel
149

Instrument Panel Overview
Automatic Transmission shown, Manual Transmission similar
152

The main components of your instrument panel are the following:
A. Air Outlets. SeeOutlet Adjustment on page 173.
B. Turn Signal/Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 155.
Windshield Washer/Wiper. SeeWindshield
Wipers on page 157andWindshield Washer
on page 158. Cruise Controls. SeeCruise
Control on page 159.
C. Horn. SeeHorn on page 154.
D. Instrument Panel Cluster. SeeInstrument
Panel Cluster on page 175.
E. Hazard Warning Flasher Button. SeeHazard
Warning Flashers on page 154.
F. All-Wheel Drive, Passenger Air Bag Status
Indicator, Locking Rear Axle, and Traction
Control System/StabiliTrak
®Buttons. See
Full-Time Four-Wheel Drive on page 111,
Passenger Airbag Status Indicator on page 179,
Locking Rear Axle on page 243,Traction
Control System (TCS) on page 241and
StabiliTrak
®System on page 244.
G. Exterior Lamps Control, Dome Override Button,
Instrument Panel Brightness Control, Fog Lamp
Button, and OnStar
®Button. SeeExterior LampsLamps on page 162,Dome Lamp Override
on page 168,Instrument Panel Brightness
on page 167,Fog Lamps on page 167, and
OnStar
®System on page 129.
H. Parking Brake Release. SeeParking Brake
on page 116.
I. Audio System. SeeAudio System(s) on
page 201.
J. Climate Control System. SeeClimate Control
System on page 170.
K. Rear Washer/Wiper Control. SeeRear Window
Wiper/Washer on page 159.
L. Off-Road Lamps Buttons. SeeOff-Road Lamps
on page 166.
M. Shift Lever. SeeAutomatic Transmission
Operation on page 106orManual Transmission
Operation on page 109.
N. Accessory Power Outlets. SeeAccessory
Power Outlet(s) on page 169.
O. Glove Box. SeeGlove Box on page 143.
153

9(Off):Turn the knob to this position to turn off
all exterior lamps, including the Daytime Running
Lamps (DRL). This is a momentary control that will
spring back to AUTO when released. Vehicles
rst sold in Canada do not have the DRL disable
feature available. Vehicles rst sold in Canada
cannot turn off the DRL unless the following
conditions are met:
The vehicle has an automatic transmission.
The gear position is in PARK (P).
The headlamp switch is turned to the
Off position.
AUTO (Automatic):Turn the knob to this position
to automatically turn on the headlamps at
normal brightness, together with the following:
Sidemarker Lamps
Taillamps
Parking Lamps
Instrument Panel Lights
Due to the momentary switch design, your
automatic headlamps may be disabled even
if the control is in the AUTO position.To enable automatic lighting, do any of the
following:
Turn the headlamp control from AUTO to off
and release the control. It will return back to
the AUTO position by itself.
Turn the headlamp control from the parking
lamp position to AUTO.
Turn the headlamp control from the headlamp
position to AUTO.
To disable automatic lighting, do any of the
following:
Turn the headlamp control from AUTO to off
and release the control. It will return back to
the AUTO position by itself.
Turn the headlamp control from AUTO to the
parking lamp position.
Turn the headlamp control from AUTO to the
headlamp position.
SeeAutomatic Headlamp System on page 165
for more information.
163

Vehicles rst sold in Canada with an automatic
transmission cannot turn off automatic headlamps
unless the gear position is in PARK (P) and
the headlamp switch is turned to the Off position.
Vehicles rst sold in Canada with a manual
transmission can turn off the automatic headlamps
with the headlamp control; however, the parking
lamps will remain on.
;(Parking Lamps):Turn the knob to this
position to turn on the parking lamps, together
with the following:
Sidemarker Lamps
Taillamps
License Plate Lamps
Instrument Panel Lights
2(Headlamps):Turn the knob to this position
to turn on the headlamps, together with the
previously listed lamps and lights.
You can switch your headlamps from low to high
beam by pushing the turn signal/multifunction
lever toward the instrument panel.
Headlamps on Reminder
A headlamp reminder chime will sound if the
following conditions are met:
The driver door is open.
Parking lamps or headlamps are manually
turned on.
The key is either not in the ignition switch, or it
is in the LOCK position of the ignition switch.
The headlamp reminder cannot be turned off if
the conditions listed above are met.
In the automatic mode, the headlamps turn off
once the ignition is in ACC.
Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) can make it easier
for others to see the front of your vehicle during
the day. DRL can be helpful in many different
driving conditions, but they can be especially
helpful in the short periods after dawn and before
sunset. Fully functional daytime running lamps
are required on all vehicles rst sold in Canada.
164

The DRL system will come on when the following
conditions are met:
The ignition is on.
The exterior lamps control is in AUTO.
The transmission is not in PARK (P) if
you have an automatic transmission.
The light sensor determines it is daytime.
When the DRL are on, no other lamps are on.
The instrument panel will not be lit up either.
For vehicles rst sold in Canada, if parking
lamps are manually turned on, DRL will stay on.
When it begins to get dark, the automatic
headlamp system will switch from DRL to the
headlamps.
As with any vehicle, you should turn on the
regular headlamp system when you need it.
To turn off the DRL, seeExterior Lamps
on page 162.
Vehicles rst sold in Canada cannot turn
off DRL unless certain conditions are met.
SeeExterior Lamps on page 162.
Automatic Headlamp System
When it is dark enough outside, the automatic
headlamp system will turn on after the transmission
has been shifted from PARK (P) to DRIVE (D).
The headlamps, taillamps, sidemarker, parking
lamps, roof marker lamps, and the instrument panel
lights will turn on at normal brightness. The radio
lights will become more dim when the headlights
are off compared to when the headlights are on.
Your vehicle has a light sensor located on the top of
the instrument panel. Be sure it is not covered, or
the system will be on whenever the ignition is on.
The system may also turn on the headlamps when
driving through a parking garage, heavy overcast
weather, or a tunnel. This is normal.
There is a delay in the transition between the
daytime and nighttime operation of the Daytime
Running Lamps (DRL) and the automatic headlamp
system so that driving under bridges or bright
overhead street lights does not affect the system.
The DRL and automatic headlamp system will only
be affected when the light sensor detects a change
in lighting lasting longer than the delay.
165

Instrument Panel Cluster
Your instrument panel cluster is designed to let you know at a glance how your vehicle is running.
You will know how fast you are going, about how much fuel you have used, and many other things
you will need to know to drive safely and economically.
United States Automatic Transmission version shown, Canada and Manual Transmission similar
175