2007 GMC ENVOY DENALI oil pressure

StabiliTrak®Service Light........................... 207
StabiliTrak®Indicator Light......................... 208
Engine Coolant Temperature Gage............ 208
Tire Pressure Light.................................... 209
Malfunction Indicator Lamp........................ 210
Oil Pressure Gage..................................... 213
Change Engine Oil Light........................... 214
Security Light............................................ 214
Cruise Control Light.................................. 215
Reduced Engine Power Light.................... 215
Highbeam On Light................................... 215
Service Four-Wheel Drive Warning Light ... 216
Check Gages Warning Light...................... 216
Gate Ajar Light.......................................... 216
Fuel Gage................................................. 217
Low Fuel Warning Light............................ 217
Check Gas Cap Light................................ 217
Driver Information Center (DIC).................. 218
DIC Operation and Displays...................... 219
DIC Warnings and Messages.................... 222
DIC Vehicle Customization........................ 229Audio System(s)......................................... 236
Setting the Time........................................ 238
Radio with CD (Base)............................... 238
Radio with CD (MP3)................................ 248
Radio with Six-Disc CD............................. 258
Using an MP3........................................... 271
XM Radio Messages................................. 277
Navigation/Radio System........................... 280
Rear Seat Entertainment System............... 280
Rear Seat Audio (RSA)............................. 295
Theft-Deterrent Feature............................. 296
Audio Steering Wheel Controls.................. 297
Radio Reception........................................ 298
Care of Your CDs and DVDs.................... 299
Care of the CD and DVD Player............... 299
Fixed Mast Antenna.................................. 299
XM™ Satellite Radio Antenna System....... 300
Chime Level Adjustment............................ 300
Section 3 Instrument Panel
166

Oil Pressure Gage
The oil pressure gage shows the engine oil
pressure in psi (pounds per square inch) when the
engine is running. Canadian vehicles indicate
pressure in kPa (kilopascals).
{CAUTION:
Do not keep driving if the oil pressure is
low. If you do, your engine can become so
hot that it catches re. You or others could
be burned. Check your oil as soon as
possible and have your vehicle serviced.
Notice:Lack of proper engine oil maintenance
may damage the engine. The repairs would
not be covered by your warranty. Always follow
the maintenance schedule in this manual for
changing engine oil.
Oil pressure may vary with engine speed, outside
temperature and oil viscosity, but readings
above the low pressure zone indicate the normal
operating range.
A reading in the low pressure zone may be
caused by a dangerously low oil level or other
problems causing low oil pressure.
United StatesCanada
213

Service Four-Wheel Drive
Warning Light
This light should come
on briey when you turn
on the ignition, as a
check to show you
it is working.
The service four-wheel drive light comes on to
indicate that there may be a problem with the drive
system and service is required. Malfunctions
can be indicated by the system before any problem
is apparent, which may prevent serious damage
to the vehicle. This system is also designed
to assist your dealer in correctly diagnosing a
malfunction.
Check Gages Warning Light
The check gages light
will come on briey
when you are starting
the engine.
If the light comes on and stays on while you are
driving, check your coolant temperature and
engine oil pressure gages to see if they are in the
warning zones.
Gate Ajar Light
If this light comes on,
the liftgate or liftglass is
not completely shut.
Close the liftgate or liftglass. Never drive with the
liftgate or liftglass even partially open.
216

To reset TRIP A or TRIP B information, press and
hold the select button for one second while in
one of the trip modes. This will reset the
information for TRIP A or TRIP B.
You can also reset the TRIP A or TRIP B while they
are displayed by pressing the reset stem on the
cluster. If you press and hold the reset stem or the
select button for more than four seconds, the
display will show the distance traveled since the last
ignition cycle for TRIP A or TRIP B.
Tire Pressures:Press the trip information button
until TIRE PRESSURES appears on the display.
This mode shows the tire pressure in pounds
per square inch (psi) or kilopascals (kPa). Press
the select button to scroll through the following
information:
LF TIRE shows the tire pressure for the front
driver’s side tire.
RF TIRE shows the tire pressure for the front
passenger’s side tire.
LR TIRE shows the tire pressure for the rear
driver’s side tire.
RR TIRE shows the tire pressure for the rear
passenger’s side tire.Timer:The DIC can be used as a timer. Press
the select button while TIMER is displayed to start
the timer. The display will show the amount of
time that has passed since the timer was
last reset, not including time the ignition is off.
Time will continue to be counted as long as
the ignition is on, even if another display is being
shown on the DIC. The timer will record up to
99 hours, 59 minutes and 59 seconds (99:59:59)
after which the display will roll back to zero.
To stop the counting of time, press the select
button briey while TIMER is displayed.
To reset the timer to zero, press and hold the
select button while TIMER is displayed.
Fuel Information Button
t
(Fuel Information):Press the fuel information
button to scroll through the range, fuel used,
average fuel economy, and the engine oil
life system.
Fuel Range:Press the fuel information button until
RANGE appears on the display. This mode shows
the remaining distance you can drive without
refueling. It is based on fuel economy and the fuel
remaining in the fuel tank. The display will show
LOW if the fuel level is low.
220

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.
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 507
andEngine Oil on page 394for more information.
Also seeEngine Oil Life System on page 398
for information on how to reset the message. This
message clears itself after 10 seconds until the
next ignition cycle.
CHECK TIRE PRESSURE
This message displays when the tire pressure in
one of the vehicle’s tires needs to be checked.
Press any of the DIC buttons, or the trip stem, to
acknowledge this message and clear it from
the DIC display.
222

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. See
Engine Oil on page 394for 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. SeeEngine Oil on
page 394.
PASSENGER DOOR AJAR
This message displays and a chime sounds if the
passenger’s 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. Press
any of the DIC buttons, or the trip stem, to
acknowledge this message and clear it from the
DIC display.
REAR ACCESS OPEN
This message displays and a chime sounds if the
liftgate or liftglass is open while the ignition is
in RUN. Turn off the vehicle and check the liftgate
and liftglass. SeeLiftgate/Liftglass on page 106.
Restart the vehicle and check for the message on
the DIC display. Press any of the DIC buttons,
or the trip stem, to acknowledge this message and
clear it from the DIC display.
RIGHT REAR DOOR AJAR
This message displays and a chime sounds if the
passenger’s 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. Press any of the DIC buttons, or the trip
stem, to acknowledge this message and clear it
from the DIC display.
225

Here are some things you can check before a trip:
Windshield Washer Fluid:Is the reservoir
full? Are all windows clean inside and outside?
Wiper Blades:Are they in good shape?
Fuel, Engine Oil, Other Fluids:Have you
checked all levels?
Lamps:Are they all working? Are the lenses
clean?
Tires:They are vitally important to a safe,
trouble-free trip. Is the tread good enough
for long-distance driving? Are the tires
all inated to the recommended pressure?
Weather Forecasts:What is the weather
outlook along your route? Should you
delay your trip a short time to avoid a major
storm system?
Maps:Do you have up-to-date maps?
Highway Hypnosis
Is there actually such a condition as highway
hypnosis? Or is it just plain falling asleep at the
wheel? Call it highway hypnosis, lack of
awareness, or whatever.
There is something about an easy stretch of road
with the same scenery, along with the hum of the
tires on the road, the drone of the engine, and the
rush of the wind against the vehicle that can make
you sleepy. Do not let it happen to you! If it does,
your vehicle can leave the road in less than a
second, and you could crash and be injured.
What can you do about highway hypnosis?
First, be aware that it can happen.
Then here are some tips:
Make sure your vehicle is well ventilated, with
a comfortably cool interior.
Keep your eyes moving. Scan the road ahead
and to the sides. Check your mirrors and your
instruments frequently.
If you get sleepy, pull off the road into a rest,
service, or parking area and take a nap, get
some exercise, or both. For safety, treat
drowsiness on the highway as an emergency.
341

Service........................................................ 380
Accessories and Modications................... 380
California Proposition 65 Warning.............. 381
Doing Your Own Service Work.................. 381
Adding Equipment to the Outside of
Your Vehicle.......................................... 382
Fuel............................................................. 382
Gasoline Octane........................................ 382
Gasoline Specications.............................. 383
California Fuel........................................... 383
Additives................................................... 383
Fuels in Foreign Countries........................ 384
Filling the Tank......................................... 385
Filling a Portable Fuel Container............... 387
Checking Things Under the Hood.............. 388
Hood Release........................................... 388
Engine Compartment Overview.................. 390
Engine Oil................................................. 394
Engine Oil Life System.............................. 398
Engine Air Cleaner/Filter............................ 400
Automatic Transmission Fluid.................... 401
Engine Coolant.......................................... 405Radiator Pressure Cap.............................. 408
Engine Overheating................................... 408
Cooling System......................................... 411
Engine Fan Noise..................................... 416
Power Steering Fluid ................................. 417
Windshield Washer Fluid........................... 418
Brakes...................................................... 419
Battery...................................................... 422
Jump Starting............................................ 423
Rear Axle.................................................... 428
Four-Wheel Drive........................................ 428
Front Axle................................................... 429
Bulb Replacement....................................... 430
Halogen Bulbs........................................... 430
Headlamps................................................ 431
Front Turn Signal, Sidemarker and
Parking Lamps....................................... 432
Taillamps, Turn Signal, and Stoplamps...... 432
Back-Up Lamps......................................... 434
License Plate Lamp................................... 435
Replacement Bulbs................................... 435
Section 5 Service and Appearance Care
377