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102 Instruments and Controls
Center (DIC) can also appear. See
Battery Voltage and Charging
Messages0112 for more
information. This light could indicate
that there are problems with a
generator drive belt, or that there is
an electrical problem. Have it
checked right away. If the vehicle
must be driven a short distance with
the light on, turn off accessories,
such as the radio and air
conditioner.
Malfunction Indicator
Lamp (Check Engine
Light)
This light is part of the vehicle’s
emission control on-board
diagnostic system. If this light is on
while the engine is running, a
malfunction has been detected and
the vehicle may require service. The
light should come on to show that it
is working when the ignition is in
ON/RUN and the engine is not
running. See Ignition Positions
0 175.
Malfunctions are often indicated by
the system before any problem is
noticeable. Being aware of the light
and seeking service promptly when
it comes on may prevent damage.
Caution
If the vehicle is driven continually
with this light on, the emission
control system may not work as
well, the fuel economy may be
lower, and the vehicle may not
run smoothly. This could lead to
costly repairs that might not be
covered by the vehicle warranty.
Caution
Modifications to the engine,
transmission, exhaust, intake,
or fuel system, or the use of
replacement tires that do not
meet the original tire
specifications, can cause this light
to come on. This could lead to
costly repairs not covered by the
vehicle warranty. This could also
affect the vehicle’s ability to pass
an Emissions Inspection/
Maintenance test. See
Accessories and Modifications
0216.
If the light is flashing : A
malfunction has been detected that
could damage the emission control
system and increase vehicle
emissions. Diagnosis and service
may be required.
To help prevent damage, reduce
vehicle speed and avoid hard
accelerations and uphill grades.
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Instruments and Controls 103
If towing a trailer, reduce the
amount of cargo being hauled as
soon as possible.
If the light continues to flash, find a
safe place to park. Turn the vehicle
off and wait at least 10 seconds
before restarting the engine. If the
light is still flashing, follow the
previous guidelines and see your
dealer for service as soon as
possible.
If the light is on steady :A
malfunction has been detected.
Diagnosis and service may be
required.
Check the following:
. A loose or missing fuel cap may
cause the light to come on. See
Filling the Tank 0200. A few
driving trips with the cap
properly installed may turn the
light off.
. Poor fuel quality can cause
inefficient engine operation and
poor driveability, which may go
away once the engine is warmed
up. If this occurs, change the
fuel brand. It may require at least one full tank of the proper
fuel to turn the light off. See
Fuel
0 198.
If the light remains on, see your
dealer.
Emissions Inspection and
Maintenance Programs
If the vehicle requires an Emissions
Inspection/Maintenance test, the
test equipment will likely connect to
the vehicle's Data Link
Connector (DLC).
The DLC is under the instrument
panel to the left of the steering
wheel. Connecting devices that are
not used to perform an Emissions
Inspection/Maintenance test or to
service the vehicle may affect
vehicle operation. See Add-On
Electrical Equipment 0212. See
your dealer if assistance is needed. The vehicle may not pass
inspection if:
.
The light is on when the engine
is running.
. The light does not come on
when the ignition is in ON/RUN
while the engine is off.
. Critical emission control systems
have not been completely
diagnosed. If this happens, the
vehicle would not be ready for
inspection and might require
several days of routine driving
before the system is ready for
inspection. This can happen if
the 12-volt battery has recently
been replaced or run down, or if
the vehicle has been recently
serviced.
See your dealer if the vehicle will
not pass or cannot be made ready
for the test.
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112 Instruments and Controls
sensor, the system must re-learn the
tire positions. To re-learn the tire
positions, seeTire Pressure Monitor
System 0261. See Tire Inspection
0 265, Tire Rotation 0265 andTire
Messages 0118.
Change Compass Zone
The vehicle may have this feature.
To change the compass zone
through the DIC, see Compass
0 90.
Calibrate Compass
The vehicle may have this feature.
The compass can be manually
calibrated. To calibrate the compass
through the DIC, see Compass
0 90.
Blank Display
This display shows no information.Vehicle Messages
Messages displayed on the DIC
indicate the status of the vehicle or
some action may be needed to
correct a condition. Multiple
messages may appear one after
another.
The messages that do not require
immediate action can be
acknowledged and cleared by
pressing
V(Set/Reset).
The messages that require
immediate action cannot be cleared
until that action is performed.
All messages should be taken
seriously and clearing the message
does not correct the problem.
The following are the possible
messages and some information
about them.
If the vehicle has a diesel engine,
see the Duramax diesel
supplement.
Battery Voltage and
Charging Messages
SERVICE BATTERY
CHARGING SYSTEM
On some vehicles, this message
displays if there is a problem with
the battery charging system. Under
certain conditions, the charging
system light may also turn on in the
instrument cluster. See Charging
System Light 0101. Driving with this
problem could drain the battery.
Turn off all unnecessary
accessories. Have the electrical
system checked as soon as
possible. See your dealer.
Brake System Messages
SERVICE BRAKE SYSTEM
This message displays along with
the brake system warning light if
there is a problem with the brake
system. See Brake System Warning
Light 0104. If this message
appears, stop as soon as possible
and turn off the vehicle. Restart the
vehicle and check for the message
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Instruments and Controls 115
stays on, the vehicle should be
taken to your dealer for service as
soon as possible.
Fuel System Messages
FUEL LEVEL LOW
This message displays and a chime
sounds if the fuel level is low. Refuel
as soon as possible.
SeeFuel Gauge 096 and Fuel
0 198 for more information.
TIGHTEN GAS CAP
This message may display along
with the check engine light on the
instrument cluster if the fuel cap is
not tightened properly. See
Malfunction Indicator Lamp (Check
Engine Light) 0102. Reinstall the
fuel cap fully. See Filling the Tank
0 200. The diagnostic system can
determine if the fuel cap has been
left off or improperly installed.
A loose or missing fuel cap allows
fuel to evaporate into the
atmosphere. A few driving trips with
the cap properly installed should
turn this light and message off.
Key and Lock Messages
REPLACE BATTERY IN
REMOTE KEY
This message displays if a Remote
Keyless Entry (RKE) transmitter
battery is low. The battery needs to
be replaced in the transmitter. See
“Battery Replacement” under
Remote Keyless Entry (RKE)
System Operation 025.
Lamp Messages
AUTOMATIC LIGHT
CONTROL OFF
This message displays when the
automatic headlamps are turned off.
See Exterior Lamp Controls 0125.
AUTOMATIC LIGHT
CONTROL ON
This message displays when the
automatic headlamps are turned on.
See Exterior Lamp Controls 0125.
TURN SIGNAL ON
This message displays and a chime
sounds if a turn signal is left on for
1.2 km (0.75 mi). Move the turn
signal lever to the off position.
Object Detection System
Messages
PARK ASST BLOCKED SEE
OWNERS MANUAL
This message displays if there is
something interfering with the Rear
Parking Assist (RPA) system. See
Parking Assist 0197.
PARK ASSIST OFF
After the vehicle has been started,
this message displays to remind the
driver that the Rear Parking Assist
(RPA) system has been turned off.
Press the set/reset button or the trip
odometer reset stem to
acknowledge this message and
clear it from the DIC display. To turn
the RPA system back on, see
Parking Assist 0197.
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120 Instruments and Controls
Entering the Feature
Settings Menu
1. Turn the ignition on and placethe vehicle in P (Park).
To avoid excessive drain on
the battery, it is recommended
that the headlamps are
turned off.
2. Press
Uto enter the feature
settings menu.
If the menu is not available,
FEATURE SETTINGS
AVAILABLE IN PARK will
display. Before entering the
menu, make sure the vehicle is
in P (Park).
Feature Settings Menu Items
The following are customization
features that allow you to program
settings to the vehicle:
DISPLAY IN ENGLISH
This feature will only display if a
language other than English has
been set. This feature allows you to
change the language in which the
DIC messages appear to English. Press
Uuntil the PRESSVTO
DISPLAY IN ENGLISH screen
appears on the DIC display. Press
the set/reset button once to display
all DIC messages in English.
LANGUAGE
This feature allows you to select the
language in which the DIC
messages will appear.
Press
Uuntil the LANGUAGE
screen appears on the DIC display.
Press
Vonce to access the settings
for this feature. Then press
Uto
scroll through the following settings:
ENGLISH (default) : All messages
will appear in English.
FRANCAIS : All messages will
appear in French.
ESPANOL : All messages will
appear in Spanish.
ARABIC : All messages will appear
in Arabic.
NO CHANGE : No change will be
made to this feature. The current
setting will remain. To select a setting, press
Vwhile
the desired setting is displayed on
the DIC. A beep will sound once a
language has been selected.
AUTO DOOR LOCK
This feature allows you to select
when the doors will
automatically lock.
Press
Uuntil AUTO DOOR LOCK
appears on the DIC display. Press
Vonce to access the settings for
this feature. Then press
Uto scroll
through the following settings:
SHIFT OUT OF PARK (default) :
The doors will automatically lock
when the vehicle is shifted out of
P (Park).
AT VEHICLE SPEED : The doors
will automatically lock when the
vehicle speed is above 13 km/h
(8 mph) for three seconds.
NO CHANGE : No change will be
made to this feature. The current
setting will remain.
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Lighting 125
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . 125
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 126
Headlamp High/Low-Beam Changer . . . . . . . . . . . . . . . . . . . . 126
Flash-to-Pass . . . . . . . . . . . . . . . . 126
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . 126
Automatic Headlamp System . . . . . . . . . . . . . . . . . . . . . . 127
Hazard Warning Flashers . . . . . 128
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . 128
Interior Lighting
Instrument Panel IlluminationControl . . . . . . . . . . . . . . . . . . . . . . 129
Dome Lamps . . . . . . . . . . . . . . . . . 129
Reading Lamps . . . . . . . . . . . . . . 130
Lighting Features
Entry/Exit Lighting . . . . . . . . . . . . 130
Battery Load Management . . . 130
Battery Power Protection . . . . . 131
Exterior Lighting
Exterior Lamp Controls
The exterior lamp control is on the
instrument panel to the left of the
steering wheel.
There are four positions:
O: Briefly turn the control to this
position to turn the automatic
headlamps and Daytime Running
Lamps (DRL) off or back on.
For vehicles first sold in Canada,
the off position only works for
vehicles that are shifted into the
P (Park) position.
AUTO : Automatically turns the
exterior lamps on and off,
depending on outside lighting.
;: Turns on the parking lamps
including all lamps, except the
headlamps.
2: Turns on the headlamps
together with the parking lamps and
instrument panel lights.
If the headlamps are turned on
while the vehicle is on, the
headlamps turn off automatically
10 minutes after the ignition is
turned off. If the headlamps are
turned on while the vehicle is off,
the headlamps will continue to stay
on. To prevent the battery from
being drained, turn the control to the
Oposition.
A warning chime sounds if the driver
door is opened while the ignition
switch is off and the headlamps
are on.
To change the headlamps from low
beam to high beam, pull the turn
signal lever all the way toward you.
Then release it.
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130 Lighting
Reading Lamps
If equipped with reading lamps,
press the button next to each lamp
to turn it on or off.
The vehicle may also have reading
lamps in other locations. The lamps
cannot be adjusted.
Lighting Features
Entry/Exit Lighting
The vehicle has an illuminated
entry/exit feature.
The dome lamps come on if the
E
DOME OFF button is in the
extended position, when a door is
opened, or the key is removed from
the ignition.
Battery Load
Management
The vehicle may have Electric
Power Management (EPM) that
estimates the battery's temperature
and state of charge. It then adjusts
the voltage for best performance
and extended life of the battery.
When the battery's state of charge
is low, the voltage is raised slightly
to quickly bring the charge back up.
When the state of charge is high,
the voltage is lowered slightly to
prevent overcharging. If the vehicle
has a voltmeter gauge or a voltage
display on the Driver InformationCenter (DIC), you may see the
voltage move up or down. This is
normal. If there is a problem, an
alert will be displayed.
The battery can be discharged at
idle if the electrical loads are very
high. This is true for all vehicles.
This is because the generator
(alternator) may not be spinning fast
enough at idle to produce all the
power that is needed for very high
electrical loads.
A high electrical load occurs when
several of the following are on, such
as: headlamps, high beams, fog
lamps, rear window defogger,
climate control fan at high speed,
heated seats, engine cooling fans,
trailer loads, and loads plugged into
accessory power outlets.
EPM works to prevent excessive
discharge of the battery. It does this
by balancing the generator's output
and the vehicle's electrical needs.
It can increase engine idle speed to
generate more power, whenever
needed. It can temporarily reduce
the power demands of some
accessories.
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Lighting 131
Normally, these actions occur in
steps or levels, without being
noticeable. In rare cases at the
highest levels of corrective action,
this action may be noticeable to the
driver. If so, a Driver Information
Center (DIC) message might be
displayed, such as SERVICE
BATTERY CHARGING SYSTEM.
If this messages displays, it is
recommended that the driver reduce
the electrical loads as much as
possible. SeeBattery Voltage and
Charging Messages 0112.
Battery Power Protection
This feature shuts off the dome
lamps if they are left on for more
than 10 minutes when the ignition is
in LOCK/OFF. This helps to prevent
the battery from running down.