operators_manual

NOTE
The determination of what circuits/
loads that were connected to the LVD
was based upon the recommendation
from Technology and Maintenance
Council (TMC) of the American Truck-
ing Association. To review the recom-
mended practice, see TMC RP-136.
NOTE
All LVD circuits are color-coded blue
on the central electrical panel cover la-
bel.
How to Replace a Headlight Bulb
This procedure applies to low and high
beam halogen bulbs used in side-mounted
headlight pods. Bulb replacements should
be performed with the vehicle parked and
the parking brake set. See Vehicle Light
Bulb Specifications on page 309 for correct
replacement bulbs.
Headlight Pod – Back (cover plate removed)
1. Low Beam rubber access cap
2. High Beam bulb
3. Turn Signal/Parking Light bulbs
CAUTION
When replacing a halogen bulb, do not
touch the globe with your fingers. Oils
or other contaminates on the skin can
result in early bulb failure.
1. Remove both screws securing the
back-of-pod cover plate using a #3
Phillips-head screwdriver, and
remove cover plate.
Cover plate is removed in picture.
2. If replacing the Low Beam bulb,
remove the rubber access cap (1).
The High Beam bulb does not have
an access cap (2).
3. Unlock bulb from behind by turning
base of bulb (and its wired
connector) a quarter-turn counter-
clockwise, then withdraw bulb and
connector from its seat.
4. Unplug wired connector from back
of bulb, and dispose of bulb.
5. Plug the wired connector into the
new bulb.
Do not touch bulb globe with
fingers.
6. Insert new bulb into seat, and turn
base quarter-turn clockwise to lock.
7. Replace rubber access cap if
removed earlier in this procedure.
8. Replace and secure cover plate.
Final Checks
• After everything is reconnected,
turn on your headlights and check
for operation.
• Have your headlights periodically
checked for proper alignment by
dealer.
MAINTENANCE - Electrical System
256 Y53-6126-1A1 (01/21)
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