2007 GMC YUKON XL check engine

Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have
or may begin programs to inspect the emission
control equipment on your vehicle. Failure to pass
this inspection could prevent you from getting a
vehicle registration.
Here are some things you need to know to help
your vehicle pass an inspection:
Your vehicle will not pass this inspection if the
check engine light is on or not working properly.
Your vehicle will not pass this inspection if the OBD
(on-board diagnostic) system determines that
critical emission control systems have not been
completely diagnosed by the system. The vehicle
would be considered not ready for inspection. This
can happen if you have recently replaced your
battery or if your battery has run down. The
diagnostic system is designed to evaluate critical
emission control systems during normal driving.
This may take several days of routine driving. If you
have done this and your vehicle still does not pass
the inspection for lack of OBD system readiness,
your GM dealer can prepare the vehicle for
inspection.
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).
Oil pressure may vary with engine speed, outside
temperature and oil viscosity, but readings above
the low pressure zone indicate the normal operating
range. When the oil pressure reaches the low
pressure zone, the “OIL PRESSURE LOW STOP
ENGINE” message will appear in the Driver
Information Center. SeeDIC Warnings and
Messages on page 254andEngine Oil on
page 438for more information.
United StatesCanada
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A reading in the low pressure zone may be
caused by a dangerously low oil level or some
other problem causing low oil pressure. Check
your oil as soon as possible.
{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 Light
{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.
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This light tells you if
there could be a
problem with your
engine oil pressure.
This light will come on briey when you start your
engine. That is a check to be sure the light
works. If it does not come on, be sure to have it
xed so it will be there to warn you if something
goes wrong.
When the light comes on and stays on, it means
that oil is not owing through your engine properly.
You could be low on oil and you might have
some other system problem.Security Light
This light ashes when
the vehicle security
system is activated.
Fog Lamp Light
The fog lamps light will
come on when the fog
lamps are in use.
The light will go out when the fog lamps are
turned off. SeeFog Lamps on page 202for more
information.
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If a low or high tire pressure condition is detected
by the system while driving, a message advising
you to check the pressure in a specic tire
will appear in the display. SeeInation - Tire
Pressure on page 490andDIC Warnings
and Messages on page 254for more information.
Engine Hours
Press the vehicle information button until ENGINE
HOURS displays. This display shows the total
number of hours the engine has run.
Relearn Tire Positions
If your vehicle has a Tire Pressure Monitor (TPM)
system, after rotating the tires or after replacing
a tire or sensor, the system must re-learn the tire
positions. To re-learn the tire positions, see
Tire Pressure Monitor System on page 492. See
Tire Inspection and Rotation on page 497andDIC
Warnings and Messages on page 254for more
information.
Relearn Remote Key
This display allows you to match remote keyless
entry transmitters to your vehicle. To match a
remote keyless entry transmitter to your vehicle,
do the following:
1. Press the vehicle information button until
PRESS
VTO RELEARN REMOTE KEY
displays.
2. Press the set/reset button until REMOTE KEY
LEARNING ACTIVE is displayed.
3. Press and hold the lock and unlock buttons
on the rst transmitter at the same time for
approximately 15 seconds.
A chime will sound indicating that the
transmitter is matched.
4. To match additional transmitters at this time,
repeat Step 3.
Each vehicle can have a maximum of eight
transmitters matched to it.
5. To exit the programming mode, you must
cycle the key to LOCK.
Blank Display
This display shows no information.
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CHANGE ENGINE OIL SOON
This message will display when the engine oil
needs to be changed. When you change the
engine oil, be sure to reset the CHANGE ENGINE
OIL SOON message. SeeEngine Oil Life
System on page 441for information on how to
reset the message. This message will clear itself
after 10 seconds until the next ignition cycle
or until the message is reset. SeeEngine Oil on
page 438andScheduled Maintenance on
page 555for more information.
CHECK TIRE PRESSURE
If your vehicle has a Tire Pressure Monitor (TPM)
system, this message will display when the
pressure in one or more of the vehicle’s tires need
to be checked. This message will also display
LEFT FRONT, RIGHT FRONT, LEFT REAR, or
RIGHT REAR to indicate which tire needs to
be checked. You can receive more than one tire
pressure message at a time. To read the other
messages that may have been sent at the same
time, press the set/reset button or the trip
odometer reset stem. 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 your Tire Loading Information Label.
SeeTires on page 482,Loading Your Vehicle on
page 390, andInation - Tire Pressure on
page 490. The DIC display also shows the tire
pressure values for the front and rear tires
by pressing the vehicle information button.
See“DIC Operation and Displays (With DIC
Buttons)”earlier in this section. If the tire pressure
is low, the low tire pressure warning light will
come on. SeeTire Pressure Light on page 235.
DRIVER DOOR OPEN
If the driver’s door is not fully closed and the
vehicle is in a drive gear, this message will display
and a chime will sound. 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.
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ENGINE HOT A/C (Air Conditioning)
TURNED OFF
This message will display when the engine coolant
becomes hotter than the normal operating
temperature. SeeEngine Coolant Temperature
Gage on page 234. To avoid added strain on a
hot engine, the air conditioning compressor
automatically turns off. When the coolant
temperature returns to normal, the air conditioning
compressor will turn back on. You can continue
to drive your vehicle.
If this message continues to appear, have the
system repaired by your GM dealer as soon
as possible to avoid damage to your engine.
ENGINE OIL LOW ADD OIL
If your vehicle has an oil level sensor and the oil
level in the vehicle is low, this message will
display. Check the oil level and correct it as
necessary. You may need to let the vehicle cool
or warm up and cycle the ignition to be sure
this message will clear.
This message will clear itself after 10 seconds,
until the next ignition cycle. SeeEngine Oil
on page 438for additional information.
ENGINE OVERHEATED IDLE ENGINE
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.
SeeEngine Overheating on page 452for more
information.
This message will display when the engine coolant
temperature is too hot. Stop and allow the
vehicle to idle until it cools down. SeeEngine
Coolant Temperature Gage on page 234.
SeeOverheated Engine Protection Operating
Mode on page 454for information on driving to a
safe place in an emergency.
256

ENGINE OVERHEATED STOP ENGINE
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. See
Engine Overheating on page 452for more
information.
If the engine cooling system reaches unsafe
temperatures for operation, this message will
display and a chime will sound. Stop and turn off
the vehicle as soon as it is safe to do so to avoid
severe damage. This message will clear when the
engine has cooled to a safe operating temperature.
ENGINE POWER IS REDUCED
This message will display and a chime will sound
when the cooling system temperature gets too
hot and the engine further enters the engine
coolant protection mode. SeeEngine Overheating
on page 452for further information.This message will also display when the vehicle’s
engine power is reduced. Reduced engine
power can affect the vehicle’s ability to accelerate.
If this message is on, but there is no reduction
in performance, proceed to your destination.
The performance may be reduced the next time
the vehicle is driven. The vehicle may be driven at
a reduced speed while this message is on, but
acceleration and speed may be reduced. Anytime
this message stays on, the vehicle should be
taken to your GM dealer for service as soon as
possible.
FUEL LEVEL LOW
If the fuel level is low, this message will display
and a chime will sound. Refuel as soon as
possible. SeeFuel Gage on page 243and
Fuel on page 428for more information.
HOOD OPEN
If the hood is not fully closed, this message will
display and a chime will sound. Stop and turn off
the vehicle, check the hood for obstructions, and
close the hood again. Check to see if the message
still appears on the DIC.
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LEFT REAR DOOR OPEN
If the driver’s side rear door is not fully closed and
the vehicle is in a drive gear, this message will
display and a chime will sound. 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 438for more
information.
If low oil pressure levels occur, this message will
display. 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
your oil as soon as possible and have your vehicle
serviced by your GM dealer. SeeEngine Oil on
page 438.
PARK ASSIST OFF
If your vehicle has the Ultrasonic Rear Parking
Assist (URPA) system, after the vehicle has been
started, this message will display to remind the
driver that the URPA 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 URPA
system back on, seeUltrasonic Rear Parking
Assist (URPA) on page 205.
PASSENGER DOOR OPEN
If the passenger’s door is not fully closed and the
vehicle is in a drive gear, this message will
display and a chime will sound. 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.
REAR ACCESS OPEN
If the liftgate or liftglass is open while the ignition
is in RUN, this message will display and a
chime will sound. Turn off the vehicle and check
the liftgate and liftglass. Restart the vehicle
and check for the message on the DIC display.
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