2007 GMC ENVOY instrument panel

Getting to Know YourEnvoy16
PERFORMANCE & MAINTENANCE
Malfunction Indicator Lamp
(Service Engine Soon Lamp)
This instrument panel cluster lamp
illuminates under a variety of conditionswhen the OnBoard Diagnostics II (OBDII) system detects a malfunction in the
vehicle’s emission controls.
If the Malfunction Indicator Lamp
is lit steadily, check the gas cap toensure it is present and securely fastened
• Turn the cap clockwise until a ratch
eting sound is heard, signaling that itis secure.
•If this is the cause of the condition, a
few driving trips with the cap installedproperly should turn the light off.
See Section 3 of your Owner Manual.
Electronically Controlled
Air Suspension (if equipped)
Occasional whirring and/or hissing
sound under the rear of the vehicle
• This sound indicates that the sys
tem’s air compressor is operating to
provide a level ride height, and is normal.
See Section 4 of your Owner Manual.
Air Inflator System (if equipped)
Locate the air
inflator unit and kit
The inflator unit is in
the rear compart
ment on the passenger side of thevehicle, behind an
access cover.
An inflator kit, with a
22foot hose and three nozzle adapters,is located in the glove box.
Use the air inflator
1. Open the access cover.
2. Attach the appropriate nozzle adapter
to the end of the hose (if required).
3. Attach that end of the hose to the
object you are inflating. Attach theother end of the hose to the inflatoroutlet.
4. Press and release the on/off switch
to turn the air inflator on. An indicator
light verifies that the inflator is
running.
5. When inflation is complete, press and
release the on/off switch again.
6.Remove the hose from the outlet
(load leveling will not operate when
the hose is attached to the outlet).
See Section 5 of your Owner Manual.

17
StabiliTrak®– Stability Control
System
StabiliTrak combines antilock brake,
traction control, and stability control sys
tems that help the driver maintain direc
tional control of the vehicle in most driv
ing conditions. The system is designedto help keep the vehicle on the driver’s
intended path by using throttle andbrake intervention.
When activated, the system will apply
braking to individual wheels and mayreduce engine power as necessary tohelp you maintain directional control of
the vehicle. You may also hear a noise
or vibration, or feel a reduction in accel
eration, while the system is active. This
is normal.
StabiliTrak is automatically turned on
when the vehicle is started and does not require any driver input. It is recom
mended to leave the system on at all
times for normal driving. It may be necessary to turn off the traction control
portion of the system if the vehicle is
stuck in sand, mud or snow.
To turn off the traction control portion
of StabiliTrak, press and release the
(StabiliTrak) button located on the
transmission shift lever. TRACTION
CONTROLOFF will be displayed on the
DIC. Press the button again to turn thesystem back on.
To turn off StabiliTrak, which includes
traction control and stability control functions, press and hold the
(StabiliTrak) button for five seconds.STABILITRAK OFF will be displayed on
the DIC. Press the button again to turn
the system back on.
See Section 4 of your Owner Manual.
FourWheel Drive (if equipped)
Envoy’s four
wheel drivesystem rotarycontrols arelocated on theinstrument panel.
Shift into 4(4high) or AUTO
• Turn the knob to 4or AUTO.
This can be done at any speed
except when shifting from 4
(4low).
Shift into 2(2high)
•Turn the knob to 2. This can be
done at any speed except whenshifting from 4
.
Shift into or out of 4
• With the ignition in Run and the
vehicle stopped or moving less than
3 mph (4.8 km/h), shift the transmission into Neutral.
• Turn the knob to 4
,2, 4or
AUTO, preferably with the vehicle
moving 1 to 2 mph (1.6 to 3.2 km/h).
• Wait for the indicator lamp to stop
flashing and remain illuminated; then
shift your transmission into gear.
Shift into Neutral (N)
• Place the transfer case in Neutral
only when towing your vehicle. See Section 4 of your Owner Manual for towing information.
See Sections 2, 4 and 5 of your Owner Manual.

Getting to Know YourEnvoy18
Tire Pressure Monitor
(if equipped)
The Tire Pressure Monitor alerts you
when a significant reduction in pressure
occurs in one or more of your vehicle’s
tires by illuminating the (low tire pres
sure) warning light on the instrument
panel. The low tire pressure warning
light will remain on until you correct thetire pressure.
You may also have a CHECK TIRE
PRESSURE message appear on theDIC (if equipped).
Correcting the Tire Pressure
When the low tire pressure warning light
illuminates, you must fill the tire to the
proper tire inflation pressure. The Tireand Loading Information label shows thecorrect inflation pressure for the tireswhen they’re cold. “Cold” means yourvehicle has been sitting for at least threehours or driven no more than one mile.
You can temporarily remove the DIC
message by acknowledging it with yourDIC controls. However, at the next vehi
cle startup, the DIC message will reap
pear if the tire pressure has not been
corrected.
You may notice during cooler conditions
that the low tire pressure warning lightwill appear when the vehicle is first start
ed and then turn off as you start to drive
the vehicle. This could be an early indicator that your tire pressures are gettinglow and need to be inflated to the properpressure.
See Section 5 of your Owner Manual.
Note: The Tire Pressure Monitor can
alert you about low tire pressure, but itdoesn’t replace normal monthly tiremaintenance.