2009 GMC ENVOY engine

Always reset the engine oil life system after an oil
change. To reset the engine oil life system, seeEngine
Oil Life System on page 5-18.
In addition to the engine oil life system monitoring the
oil life, additional maintenance is recommended in
the Maintenance Schedule in this manual. SeeEngine
Oil on page 5-15andScheduled Maintenance on
page 6-4.
Customization Button
4
(Customization):Press the customization button to
access the VEHICLE SETTINGS menu and customize
the settings to your vehicle. SeeDIC Vehicle
Customization on page 3-56for more information.
Select Button
r
(Select):Press the select button to reset certain
DIC functions, turn off or acknowledge messages
on the DIC display, and set your customization settings.
For example, this button will allow you to reset the
trip odometers, turn off the FUEL LEVEL LOW message,
and enables you to scroll through and select the
language in which the DIC information will appear.
DIC Warnings and Messages
Messages are displayed on the DIC to notify the driver
that the status of the vehicle has changed and that
some action may be needed to correct the condition.
Multiple messages may appear one after another.
Some messages may not require immediate action.
Press any of the DIC buttons on the steering wheel or
the trip odometer reset stem on the instrument panel
cluster to acknowledge that you received the messages
and to clear them from the display.
Some messages cannot be cleared from the display
because they are more urgent. These messages require
action before they can be removed from the DIC
display. Take any messages that appear on the display
seriously and remember that clearing the messages
will only make the messages disappear, not correct the
problem.
The following are the possible messages that can be
displayed and some information about them.
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CHANGE ENGINE OIL
This message displays when the engine oil needs to be
changed and service is required for your vehicle.
SeeScheduled Maintenance on page 6-4andEngine
Oil on page 5-15for more information. Also see
Engine Oil Life System on page 5-18for information
on how to reset the message. This message clears itself
after 10 seconds until the next ignition cycle.
CHECK TIRE PRESSURE
On vehicles with the Tire Pressure Monitor System
(TPMS), this message displays when the pressure in
one or more of the vehicle’s tires needs to be checked.
If a tire pressure message appears on the DIC, stop
as soon as you can. Have the tire pressures checked
and set to those shown on the Tire Loading Information
label. SeeTires on page 5-53,Loading the Vehicle
on page 4-31, andInflation - Tire Pressure on
page 5-60. The DIC also shows the tire pressure
values. SeeDIC Operation and Displays on page 3-48.
If the tire pressure is low, the low tire pressure
warning light comes on. SeeTire Pressure Light on
page 3-38.
CHECK WASHER FLUID
This message displays if the washer uid level is low.
Adding washer uid to the windshield washer uid
reservoir clears this message. SeeWindshield Washer
Fluid on page 5-34. This message clears itself after
10 seconds, or you can manually clear it from the
DIC display.
DRIVER DOOR AJAR
This message displays and a chime sounds if the driver
door is not fully closed. Stop and turn off the vehicle,
check the door for obstructions, and close the door
again. Check to see if the message still appears
on the DIC.
ENGINE COOLANT HOT/ENGINE
OVERHEATED
Notice:If you drive your vehicle while the engine
is overheating, severe engine damage may occur.
If an overheat warning appears on the instrument
panel cluster and/or DIC, stop the vehicle as soon as
possible. Do not increase the engine speed above
normal idling speed. SeeEngine Overheating
on page 5-30for more information.
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This message displays and a chime sounds if the
cooling system temperature gets hot. SeeEngine
Overheating on page 5-30for the proper course of
action. This message clears when the coolant
temperature drops to a safe operating temperature.
FUEL LEVEL LOW
This message displays and a chime sounds if the fuel
level is low. Refuel as soon as possible. SeeLow
Fuel Warning Light on page 3-47,Filling the Tank on
page 5-8, andFuel on page 5-5for more information.
ICE POSSIBLE
This message may display if the outside temperature
reaches a level where ice could form on the roadway.
Adjust your driving accordingly. If the temperature
rises to a safe level, the message clears. This message
clears itself after 10 seconds, or you can manually
clear it from the DIC display.
KEY FOB # BATTERY LOW
This message displays if a Remote Keyless Entry (RKE)
transmitter battery is low. Replace the battery in the
transmitter. See “Battery Replacement” underRemote
Keyless Entry (RKE) System Operation on page 2-5.
LEFT REAR DOOR AJAR
This message displays and a chime sounds if the driver
side rear door is not fully closed. Stop and turn off
the vehicle, check the door for obstructions, and close
the door again. Check to see if the message still
appears on the DIC.
OIL PRESSURE LOW/STOP ENGINE
Notice:If you drive your vehicle while the engine
oil pressure is low, severe engine damage may
occur. If a low oil pressure warning appears on the
Driver Information Center (DIC), stop the vehicle
as soon as possible. Do not drive the vehicle until
the cause of the low oil pressure is corrected.
SeeEngine Oil on page 5-15for more information.
This message displays if low oil pressure levels
occur. Stop the vehicle as soon as safely possible and
do not operate it until the cause of the low oil pressure
has been corrected. Check the oil as soon as possible
and have your vehicle serviced by your dealer/retailer.
SeeEngine Oil on page 5-15.
PASSENGER DOOR AJAR
This message displays and a chime sounds if the
passenger door is not fully closed. Stop and turn off the
vehicle, check the door for obstructions, and close
the door again. Check to see if the message still
appears on the DIC.
3-53

REAR ACCESS OPEN
This message displays and a chime sounds if the
liftgate or liftglass is open while the ignition is in
ON/RUN. Turn off the vehicle and check the liftgate and
liftglass. SeeLiftgate/Liftglass on page 2-12. Restart
the vehicle and check for the message on the DIC
display.
RIGHT REAR DOOR AJAR
This message displays and a chime sounds if the
passenger side rear door is not fully closed. Stop and
turn off the vehicle, check the door for obstructions, and
close the door again. Check to see if the message
still appears on the DIC.
SERVICE AIR BAG
This message displays if there is a problem with the
airbag system. Have your dealer/retailer inspect
the system for problems. SeeAirbag Readiness Light
on page 3-31andAirbag System on page 1-55for more
information.
SERVICE BRAKE SYSTEM
This message displays if a problem occurs with the
brake system. If this message appears, stop as soon as
possible and turn off the vehicle. Restart the vehicle
and check for the message on the DIC display.If the message is still displayed, or appears again when
you begin driving, the brake system needs service.
See your dealer/retailer.
SERVICE CHARGING SYS (System)
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 panel cluster. SeeCharging System Light on
page 3-33. The battery will not be charging at an
optimal rate and the vehicle will lose the ability to enter
the fuel economy mode. The vehicle is safe to drive,
however you should have the electrical system checked
by your dealer/retailer.
SERVICE STABILITRAK
If this message displays, it means there may be a
problem with the StabiliTrak system. If this message
appears, try to reset the system by performing the
following: stop; turn off the engine; then start the engine
again. If this message still comes on, it means there
is a problem. You should see your dealer/retailer
for service. The vehicle is safe to drive, however,
you do not have the benet of StabiliTrak, so reduce
your speed and drive accordingly.
3-54

SERVICE TIRE MONITOR
On vehicles with the Tire Pressure Monitor System
(TPMS), this message displays if a part on the TPMS is
not working properly. The tire pressure light also ashes
and then remains on during the same ignition cycle. See
Tire Pressure Light on page 3-38. Several conditions may
cause this message to appear. SeeTire Pressure Monitor
Operation on page 5-64for more information. If the
warning comes on and stays on, there may be a problem
with the TPMS. See your dealer/retailer.
STABILITRAK ACTIVE
This message displays anytime the StabiliTrak system
activates to maintain vehicle stability. Any combination
of engine speed management, brake traction control,
and stability control displays this message.
STABILITRAK NOT READY
This message may display if driving conditions delay
StabiliTrak system initialization. This is normal. Once the
system initializes, this message will no longer be
displayed on the DIC.
STABILITRAK OFF
This message displays when you press the StabiliTrak
button for more than ve seconds or when stability
control has been automatically disabled. The StabiliTrak
button is located on the transmission shift handle.
To limit wheel spin and realize the full benets of the
stability enhancement system, you should normally
leave StabiliTrak on. However, you should turn
StabiliTrak off if your vehicle gets stuck in sand, mud,
ice, or snow and you want to rock your vehicle to
attempt to free it, or if you are driving in extreme off-road
conditions and require more wheel spin. SeeIf Your
Vehicle is Stuck in Sand, Mud, Ice, or Snow on
page 4-30. To turn the StabiliTrak system back on,
press the StabiliTrak button again.
There are several conditions that can cause this
message to appear.
The message may display if the brake system
warning light is on. SeeBrake System Warning
Light on page 3-35.
The message displays if the vehicle is shifted
into 4LO.
The message turns off as soon as the conditions that
caused the message to be displayed are no longer
present.
3-55

TIGHTEN FUEL CAP
This message may display and a chime may sound if
the vehicle’s fuel cap is not tightened properly. Fully
reinstall the fuel cap. SeeFilling the Tank on page 5-8.
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. This message remains on until it is
manually cleared from the DIC display. The DIC
message is also cancelled if the ignition is turned off.
The DIC message and the Service Engine Soon light
may come on again during a second trip if the fuel cap is
still not tightened properly. SeeMalfunction Indicator
Lamp on page 3-38for more information.
TRACTION CONTROL OFF
This message displays when you momentarily press
the StabiliTrak button located on the transmission
shift handle. In this mode, stability control and the
brake-traction control are functional. Engine speed
management will be modied and the driven wheels can
spin more freely. For more details on this mode, see
StabiliTrak
®System on page 4-6.
TURN SIGNAL ON
This message displays and a chime sounds if a turn
signal is left on for 3/4 of a mile (1.2 km). Move the turn
signal/multifunction lever to the off position.
DIC Vehicle Customization
Your vehicle may have customization capabilities that
allow you to program some features to one setting
based on your preference. All of the customizable
options listed may not be available on your vehicle.
Only the options available display on the Driver
Information Center (DIC).
The default settings for the customization features were
set when your vehicle left the factory, but may have
been changed from their default state since then.
To change feature preferences, make sure the ignition
is on and the vehicle is in P (Park). To avoid excessive
drain on the battery, it is recommended that the
headlamps are turned off.
Press
4to scroll through the available customizable
options.
After pressing
4, VEHICLE SETTINGS momentarily
displays before going to a customization option.
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Notice:Contact your dealer/retailer before adding
any equipment.
Adding audio or communication equipment could
interfere with the operation of the vehicle’s engine,
radio, or other systems, and could damage them.
Follow federal rules covering mobile radio and
telephone equipment.
Notice:The chime signals related to safety belts,
parking brake, and other functions of your vehicle
operate through the radio/entertainment system.
If that equipment is replaced or additional equipment
is added to your vehicle, the chimes may not
work. Make sure that replacement or additional
equipment is compatible with your vehicle before
installing it. SeeAccessories and Modifications
on page 5-3.
The vehicle has Retained Accessory Power (RAP).
With RAP, the audio system can be played even after
the ignition is turned off. SeeRetained Accessory Power
(RAP) on page 2-22for more information.Setting the Clock
The clock can be set with the ignition on or off.
The radio may have a button marked with an H or HR to
represent hours and an M or MN to represent minutes.
Press and hold the hour button until the correct hour
displays. AM or PM displays for morning or evening
hours. Press and hold the minute button until the correct
minute displays.
To synchronize the time with an FM station broadcasting
Radio Data System (RDS) information, press and hold
the hour and minute buttons at the same time until
UPDATED and the clock symbol appear on the
display. If the time is not available from the station,
NO UPDATE or NO UPDAT will appear on the display.
RDS time is broadcast once a minute. After tuning
to an RDS broadcast station, it could take a few minutes
for the time to update.
3-63

Your Driving, the Road, and
the Vehicle
Driving for Better Fuel Economy
Driving habits can affect fuel mileage. Here are some
driving tips to get the best fuel economy possible.
Avoid fast starts and accelerate smoothly.
Brake gradually and avoid abrupt stops.
Avoid idling the engine for long periods of time.
When road and weather conditions are appropriate,
use cruise control, if equipped.
Always follow posted speed limits or drive more
slowly when conditions require.
Keep vehicle tires properly inated.
Combine several trips into a single trip.
Replace the vehicle’s tires with the same TPC Spec
number molded into the tire’s sidewall near the size.
Follow recommended scheduled maintenance.
Defensive Driving
Defensive driving means “always expect the
unexpected.” The rst step in driving defensively is to
wear your safety belt — SeeSafety Belts: They Are for
Everyone on page 1-13.
{CAUTION:
Assume that other road users (pedestrians,
bicyclists, and other drivers) are going to be
careless and make mistakes. Anticipate what they
might do and be ready. In addition:
Allow enough following distance between you
and the driver in front of you.
Focus on the task of driving.
Driver distraction can cause collisions resulting in
injury or possible death. These simple defensive
driving techniques could save your life.
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