3. To disengage Rear E-Locker, push the
REAR LOCK button once.
NOTE:
• It may also be necessary to drive slowly
steering back and forth to complete en-
gagement and disengagement of the
E-Locker.
• When engaging Rear E-Locker, the indica-
tor lights in the instrument cluster and on
the REAR LOCK button will begin to flash.
When the shift is complete the REAR LOCK
indicator lights will remain on.
• When disengaging Rear E-Locker, the indi-
cator lights in the instrument cluster and on
the REAR LOCK button will begin to flash.
When the shift is complete the REAR LOCK
indicator lights will remain off.
• Shifting into or out of Rear E-Locker is
possible with the vehicle completely
stopped; however, difficulty may occur due
to the mating clutch teeth not being prop-
erly aligned. Several attempts may be re-
quired for clutch teeth alignment and shift
completion to occur. The preferred methodis for the vehicle to be rolling, below
15 MPH (24 km/h), while including right
and left steering maneuvers to allow for the
clutch teeth to align.
• The Rear E-Locker System must be disen-
gaged prior to taking the vehicle out of 4WD
LOW range. If 4WD LOW shift conditions/
interlocks are not met, a message will flash
from the instrument cluster display with
instructions on how to complete the re-
quested shift.
SELEC-TERRAIN
Description
Selec-Terrain combines the capabilities of
the vehicle control systems, along with driver
input, to provide the best performance for all
terrains.
Rotate the Selec-Terrain knob to select the
desired mode.Selec-Terrain offers the following modes:
•Auto— Fully automatic full time four-wheel
drive operation can be used on and off road.
Balances traction with seamless steering
feel to provide improved handling and ac-
celeration over two-wheel drive vehicles.
•Snow— Tuning set for additional stability
in inclement weather. Use on and off road
on loose traction surfaces such as snow.
When in SNOW mode (depending on cer-
Selec-Terrain Switch
155
Conditions That Force An Application Of The
Electric Park Brake While In Autostop Mode:
• The driver’s door is open and brake pedal
released.
• The driver’s door is open and the driver’s
seat belt is unbuckled.
• The engine hood has been opened.
• A STOP/START system error occurs.
If the Electric Park Brake is applied with the
engine off, the engine may require a manual
restart and the electric park brake may re-
quire a manual release (depress brake pedal
and push Electric Park Brake switch). Refer
to “Instrument Cluster Display” in “Getting
To Know Your Instrument Panel” in your Own-
er’s Manual.
To Manually Turn Off The Stop/Start
System
1. Push the STOP/START Off switch (located
on the switch bank). The light on the
switch will illuminate.2. The “STOP/START OFF” message will ap-
pear in the instrument cluster display.
Refer to “Warning Lights And Messages”
in “Getting To Know Your Instrument
Panel” in your Owner’s Manual.
3. At the next vehicle stop (after turning off
the STOP/START system), the engine will
not be stopped.
4. The STOP/START system will reset itself
back to the ON mode every time the igni-
tion is turned off and back on.
To Manually Turn On The Stop/Start
System
Push the STOP/START Off switch (located on
the switch bank). The light on the switch will
turn off.
For complete details on the Stop/Start Sys-
tem, refer to the “Stop/Start System” in the
“Starting And Operating” section located in
your Owner’s Manual.
STOP/START SYSTEM —
DIESEL MODELS ONLY
The Stop/Start function is developed to save
fuel and reduce emissions. The system will
stop the engine automatically during a ve-
hicle stop if the required conditions are met.
Releasing the brake pedal or pressing the
accelerator pedal on an automatic transmis-
sion or pressing the clutch pedal on a manual
transmission will automatically restart the
engine.STOP/START OFF SwitchSTARTING AND OPERATING
158
Automatic Mode
The Stop/Start feature is enabled after every
normal customer engine start. It will remain
in STOP/START NOT READY until you drive
forward with a vehicle speed greater than
4 mph (7 km/h). At that time, the system will
go into STOP/START READY and if all other
conditions are met, can go into a STOP/
START AUTOSTOP ACTIVE “Autostop”
mode.
To Activate The Autostop Mode, The Following
Must Occur:
• The system must be in STOP/START
READY state. A STOP/START READY mes-
sage will be displayed in the instrument
cluster display within the Stop/Start sec-
tion. Refer to “Instrument Cluster Display”
in “Getting To Know Your Instrument
Panel” in your Owner’s information for fur-
ther details.
• The vehicle must be completely stopped.
• The gear selector must be in DRIVE and the
brake pedal depressed (automatic trans-
mission) or the gear selector must be in
NEUTRAL and the clutch pedal must be
fully released (manual transmission).The engine will shut down, the tachometer
will move to the zero position and the Stop/
Start telltale will illuminate indicating you
are in Autostop. While in Autostop, the Cli-
mate Controls system may automatically ad-
just airflow to maintain cabin comfort. Cus-
tomer settings will be maintained upon return
to an engine running condition.
Possible Reasons The Engine Does Not
Autostop
Prior to engine shut down, the system will
check many safety and comfort conditions to
see if they are fulfilled. Detailed information
about the operation of the Stop/Start system
may be viewed in the instrument cluster
Stop/Start Screen. In the following situations
the engine will not stop:
• Driver’s seat belt is not buckled.
• Driver’s door is not closed.
• Battery temperature is too warm or cold.
• The vehicle is on a steep grade.
• Cabin heating or cooling is in process and
an acceptable cabin temperature has not
been achieved.• HVAC is set to full defrost mode at a high
blower speed.
• Engine has not reached normal operating
temperature.
• Battery charge is low.
• The transmission is not in DRIVE (auto-
matic transmission) or NEUTRAL (manual
transmission).
• Hood is open.
• Vehicle is in 4LO transfer case mode.
• Exhaust system regeneration in process.
Other Factors Which Can Inhibit Autostop In-
clude:
• Fuel level.
• Accelerator pedal input (automatic trans-
mission only).
• Engine temperature too high.
It may be possible for the vehicle to be driven
several times without the STOP/START sys-
tem going into a STOP/START READY state
under more extreme conditions of the items
listed above.
159
To Start The Engine While In Autostop
Mode
Automatic Transmission:
While in DRIVE, the engine will start when
the brake pedal is released or the throttle
pedal is depressed. The transmission will
automatically re-engage upon engine restart.
During this transition, the brakes will hold
the vehicle to avoid undesired vehicle move-
ment.
Manual Transmission:
When the gear selector is in NEUTRAL, the
engine will start when the clutch pedal is
pressed. The vehicle will go into STOP/
START SYSTEM NOT READY mode until the
vehicle speed is greater than 4 mph (7 km/h).
Conditions That Will Cause The Engine To Start
Automatically While In Autostop Mode:
• The transmission gear selector is moved
from DRIVE to REVERSE or NEUTRAL.
• To maintain cabin temperature comfort.
• HVAC is set to full defrost mode.
• Battery voltage drops too low.• Low brake vacuum (e.g. after several brake
pedal applications).
• STOP/START OFF switch is pushed.
• 4WD system is put into 4LO mode.
• The emissions system requires it.
• A STOP/START system error occurs.
• HVAC system temperature or fan speed is
manually adjusted.
Conditions That Force An Application Of The
Electric Park Brake While In Autostop Mode:
• The driver door is open and brake pedal
released.
• The driver door is open and the driver seat
belt is unbuckled.
• The engine hood has been opened.
• A STOP/START system error occurs.
If the Electric Park Brake is applied with the
engine off, the engine may require a manual
restart and the electric park brake may re-
quire a manual release (depress brake pedal
and push Electric Park Brake switch). Referto “Instrument Cluster Display” in “Getting
To Know Your Instrument Panel” in your Own-
er’s Manual for further information.To Manually Turn Off The Stop/Start
System
1. Push the STOP/START Off switch (located
on the switch bank). The light on the
switch will illuminate.
2. The “STOP/START OFF” message will ap-
pear in the instrument cluster display.
Refer to “Instrument Cluster Display” in
“Getting To Know Your Instrument Panel”
in your Owner’s manual for further
information.
STOP/START OFF Switch
STARTING AND OPERATING
160
Cavity Blade Fuse Cartridge Fuse Description
F11 – – Not Used
F12 10 Amp Red – Supply And Purging Pump (Diesel)
(*)
F13 10 Amp Red – Voltage Stability Mod (VSM)/
Powertrain Control Mod (PCM)/
Engine Control Module (ECM)
(*)
F14 10 Amp Red – Drivetrain Control Module (DTCM)/
Power Take-Off Unit (PTU)/Electric
Park Brake (EPB)/RDM/Brake Sys-
tem Module (BSM) – If Equipped/
Brake Pedal Switch/Back Up Lamp
Switch (Diesel)
(*)
F15 – – Not Used
F16 20 Amp Yellow – I
gn Coils / Additional Diesel Content(*)
F17 30 Amp Pink – Brake Vacuum Pump (GAS
GMET4/V6 Engines Only)
(*)
F18 – – Not Used
F19 – 40 Amp Green Starter Solenoid
(*)
F20 10 Amp Red – A/C Compressor Clutch
(*)
F21 – – Not Used
187
GEAR SELECTOR OVERRIDE
If a malfunction occurs and the gear selector
cannot be moved out of the PARK position,
you can use the following procedure to tem-
porarily move the gear selector:
1. Turn the engine OFF.
2. Apply the parking brake.
3. Using a screwdriver or similar tool, care-
fully separate the shifter bezel and boot
assembly from the center console, and
raise it up to access the gear selector
mechanism.
4. Press and maintain firm pressure on the
brake pedal.
5. Insert a small screwdriver or similar tool
down into the gear selector override ac-
cess hole (at the left front corner of the
gear selector assembly), and push and
hold the override release lever down.
6. Move the gear selector to the NEUTRAL
position.
7. The vehicle may then be started in
NEUTRAL.
8. Reinstall the gear selector boot.
FREEING A STUCK VEHICLE
If your vehicle becomes stuck in mud, sand or
snow, it can often be moved using a rocking
motion. Turn the steering wheel right and left
to clear the area around the front wheels. For
vehicles with automatic transmission, push
and hold the lock button on the gear selector.
Then shift back and forth between DRIVE and
REVERSE (with automatic transmission) or
SECOND GEAR and REVERSE (with manual
transmission), while gently pressing the ac-
celerator.
NOTE:
For vehicles with automatic transmission:
Shifts between DRIVE and REVERSE can
only be achieved at wheel speeds of 5 mph
(8 km/h) or less. Whenever the transmission
remains in NEUTRAL for more than two sec-
onds, you must press the brake pedal to
engage DRIVE or REVERSE.
Use the least amount of accelerator pedal
pressure that will maintain the rocking mo-
tion without spinning the wheels or racing the
engine.
CAUTION!
• Racing the engine or spinning the
wheels may lead to transmission over-
heating and failure. Allow the engine to
idle with the transmission in NEUTRAL
for at least one minute after every five
rocking-motion cycles. This will mini-
mize overheating and reduce the risk of
clutch or transmission failure during
prolonged efforts to free a stuck vehicle.
• When “rocking” a stuck vehicle by shift-
ing between DRIVE/SECOND GEAR and
REVERSE, do not spin the wheels faster
than 15 mph (24 km/h), or drivetrain
damage may result.
• Revving the engine or spinning the
wheels too fast may lead to transmission
overheating and failure. It can also dam-
age the tires. Do not spin the wheels
above 30 mph (48 km/h) while in gear
(no transmission shifting occurring).
213