2007 GMC ENVOY clock

Headlamps
To replace one of these bulbs, do the following:
1. Open the hood.Hood Release on page 388
for more information.
2. Lift the two headlamp retaining clips.
3. Pull the headlamp assembly away from the
vehicle to access the electrical connectors.4. Remove the cover from the headlamp bulb.
5. Remove the bulb socket that needs to
be replaced by turning it counterclockwise.
6. Disconnect the electrical connector from the
old bulb.
7. Plug the electrical connector into the new bulb
using care not to touch the glass with your
ngers.
8. Install the new bulb into the socket and turn it
clockwise to secure.
9. Reinstall by reversing Steps 1 through 6.
10. Press down on the headlamp retaining clips to
secure the headlamp assembly.
431

Front Turn Signal, Sidemarker and
Parking Lamps
To replace one of these bulbs, do the following:
1. Follow Steps 1 through 3 underHeadlamps on
page 431to access the front turn signal,
sidemarker or parking lamp.
2. Turn the bulb socket counterclockwise and
remove it from the lamp assembly.
3. Holding the socket, pull the old bulb to
release it from the socket.
4. Push the new bulb into the socket until it
clicks.
5. Insert the bulb socket into the lamp assembly
and turn it clockwise to secure.
6. Reinstall the headlamp assembly by lining up
the headlamp assembly with the slots in the
headlamp retaining clips.
7. Press down on the headlamp retaining clips to
secure the headlamp assembly.
Taillamps, Turn Signal, and
Stoplamps
To replace a stoplamp/taillamp or turn signal bulb,
do the following:
1. Open the liftgate. SeeLiftgate/Liftglass on
page 106for more information.
2. Remove the
two screws from
the taillamp
assembly.
3. Pull the assembly away from the vehicle.
432

Back-Up Lamps
The back-up lamps are located in the rear
bumper. To replace a bulb, do the following:
1. Reach behind the rear bumper and locate the
bulb socket.
2. Turn it counterclockwise to remove from the
lamp assembly.3. Holding the socket, pull the old bulb to
release it from the socket.
4. Push in a new bulb into the bulb socket until it
clicks.
5. Reinstall the bulb socket into the lamp
assembly and turn it clockwise to secure.
434

4. Press and release the switch to turn the air
inator on. The indicator light will remain on
when the inator is running.
The system has an internal clock to prevent
the system from overheating. The system
will allow about ve minutes of running time,
then the compressor will stop. The indicator
light will then begin to ash. When the indicator
is off, the inator can be started again by
pressing the switch. If the compressor is still
hot, it may only run for a short time before
shutting off again.
5. Press and release the switch to turn the
inator off.Place the inator kit tools in the pouch and store it
in its proper location. Remove the inator hose
from the outlet during loading and unloading. Load
leveling will not function with the inator hose
attached to the inator outlet. SeeElectronically
Controlled Air Suspension System on page 360for
more information.
To reinstall the cover, line up the tabs at the back
of the cover, put it in place and latch the tabs.
A continuous ashing indicator light may also
indicate a malfunction in the air suspension
system. SeeElectronically Controlled Air
Suspension System on page 360for more
information.
463

When your vehicle has a at tire, use the following
example as a guide to assist you in the placement
of wheel blocks.
The following information will tell you how to use
the jack and change a tire.Removing the Spare Tire and Tools
The jacking equipment needed to remove the
spare tire is stored under the rear seat. To release
the jack from its holder, turn the knob on the
jack counterclockwise to lower the jack head.
SeeRear Seat Operation on page 18for more
information.
466

3. Insert the socket
end of the
extension (C)
on a 45 degree
angle downward
into the hoist drive
shaft hole.
It is exposed when the rear gate is open and
is just above the rear bumper. Be sure the
socket end of the extension (C) connects
to the hoist shaft.
4. Turn the wheel wrench counterclockwise to
lower the spare tire. Keep turning the wheel
wrench until the spare tire can be pulled
out from under the vehicle.
If the spare tire does not lower to the ground,
the secondary latch is engaged causing
the tire not to lower. SeeSecondary Latch
System on page 475for more information.
468

2. Using the wheel
wrench, loosen all
the wheel nuts.
Do not remove
them yet.
3. Turn the jack adjusting knob clockwise by
hand to raise the jack lift head.
4. Place the handle, extension, and wheel
wrench onto the jack.A. Front Frame/Rear Axle
B. Jack
C. Handle
D. Extension
E. Wheel Wrench
5. Place the jack in the appropriate position
nearest the at tire.
Front PositionRear Position
470

{CAUTION:
Getting under a vehicle when it is jacked
up is dangerous. If the vehicle slips off
the jack you could be badly injured or
killed. Never get under a vehicle when it
is supported only by a jack.
{CAUTION:
Raising your vehicle with the jack
improperly positioned can damage the
vehicle and even make the vehicle fall.
To help avoid personal injury and vehicle
damage, be sure to t the jack lift head
into the proper location before raising
the vehicle.6. Raise the vehicle by turning the jack handle
clockwise. Raise the vehicle far enough off
the ground so there is enough room for
the spare tire to t.
471