2002 CADILLAC ESCALADE EXT headlamp

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Bulb Replacement
For any bulb changing procedure not listed in this
section, contact your dealer.
See ªReplacement Bulbsº in the Index for the proper
types of bulbs to use.
Halogen Bulbs
CAUTION:
Halogen bulbs have pressurized gas inside and
can burst if you drop or scratch the bulb. You or
others could be injured. Be sure to read and
follow the instructions on the bulb package.
Headlamps
A. Low-Beam Headlamp
B. Daytime Running Lamp
C. Sidemarker Lamp
D. High
-Beam Headlamp
E. Front Parking and Turn Signal Lamp

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5. Pull the top left and right corners of the grill out so
the clips release. Then pull the grill out and up.6. Remove the horizontal pin from the headlamp
assembly by lifting the end of the pin upward until
it unsnaps and then pulling it toward the center of
the vehicle.

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7. Remove the vertical pin from the headlamp assembly
by turning the end of the pin away from you until it
unsnaps and then pulling it upward.
8. Remove the headlamp assembly by lifting it up
and then pulling it out and away from the front of
the vehicle.
9. Disconnect the electrical connector from the lower
corner of the headlamp assembly. This will give you
better access to the headlamp assembly.
10. Remove the rubber,
circular
-shaped bulb
cap of the affected bulb
from the headlamp
assembly.
11. Turn the bulb connector counterclockwise and
remove it with the old bulb from the headlamp
assembly.
12. Unplug the electrical connector from the old bulb.
13. Plug in the electrical connector to the new bulb,
using care not to touch the bulb with your hands,
fingers or anything damp or oily.
14. Place the connector with the new bulb into the
headlamp assembly and turn it clockwise until it
is tight.
15. Reinstall the rubber, circular
-shaped bulb cap onto
the headlamp assembly.

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16. Reconnect the electrical connector to the lower
corner of the headlamp assembly.
17. Place the headlamp assembly back into the vehicle,
being sure to align the lower locator tab with the
pocket on the vehicle (see arrow). Push the
headlamp assembly straight in and then down
into position.
18. Install the two pins and snap the ends into their
locked position.
19. Reinstall the grille and radiator cover by reversing
the removal procedure described previously.Headlamp Aiming
Your vehicle has a visual optical headlamp aiming
system equipped with horizontal aim indicators.
The aim has been preset at the factory and should
need no further adjustment. This is true even though
your horizontal aim indicators may not fall exactly on
the ª0º (zero) marks on their scales.

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If your vehicle is damaged in an accident, the headlamp
aim may be affected. Aim adjustment to the low beam
may be necessary if it is difficult to see lane markers
(for horizontal aim), or if oncoming drivers flash their
high beams at you (for vertical aim). If you believe
your headlamps need to be re
-aimed, we recommend
that you take your vehicle to your dealer for service.
However, it is possible for you to re
-aim your
headlamps as described in the following procedure.
NOTICE:
To make sure your headlamps are aimed
properly, read all the instructions before
beginning. Failure to follow these instructions
could cause damage to headlamp parts.
The vehicle should be properly prepared as follows:

The vehicle should be placed so the headlamps are
25 ft. (7.6 m) from a light colored wall or other flat
surface.

The vehicle must have all four tires on a perfectly
level surface which is level all the way to the wall or
other flat surface.

The vehicle should be placed so it is perpendicular to
the wall or other flat surface.

The vehicle should not have any snow, ice or mud
attached to it.

The vehicle should be fully assembled and all other
work stopped while headlamp aiming is being done.

The vehicle should be normally loaded with a full
tank of fuel and one person or 160 lbs. (75 kg) on the
driver's seat.

Tires should be properly inflated.

Start the vehicle and rock it to level the suspension.
Headlamp aiming is done with the vehicle low beam
lamps. The high beam lamps will be correctly aimed if
the low beam lamps are aimed properly.

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The headlamp aiming devices are under the hood near
the headlamps.
If you believe your headlamps need horizontal
(left/right) adjustment, follow the horizontal aiming
procedure. If you believe your headlamps need only
vertical (up/down) adjustment, follow only the vertical
aiming procedure.
Adjustment screws can be turned with an E8 Torx


socket or T15 Torx screwdriver.Headlamp Horizontal Aiming
Turn the horizontal aiming screw (A) until the indicator (B)
is lined up with zero.
Once the horizontal aim is adjusted, then adjust the
vertical aim.

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Headlamp Vertical Aiming
NOTICE:
Horizontal aiming must be performed before
making any adjustments to the vertical aim.
Adjusting the vertical aim first will result in an
incorrect headlamp aim.
1. Find the aim dot on the lens of the low beam lamps.
2. Measure the distance from the ground to the aim dot
on each low beam lamp. Record this distance.

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3. At the wall or other flat surface, measure from the
ground upward the recorded distance from Step 2 and
draw or tape a horizontal line the width of the vehicle.
4. Turn on the low-beam headlamps and place a piece
of cardboard or equivalent in front of the headlamp
not being aimed. This should allow only the beam of
light from the headlamp being aimed to be seen on
the flat surface.
NOTICE:
Do not cover a headlamp to improve beam
cut
-off when aiming. Covering a headlamp may
cause excessive heat build
-up which may cause
damage to the headlamp.