Exterior Bulbs
Bulb Name Bulb Number
Turn Signal / Front Position (Halogen Reflector Headlamp) 7444NA
Turn Signal LED
Front Position LED
Turn Signal (LED Reflector Headlamp) 7444NA
Front Side Marker LED
Front Fog Lamps (Halogen Reflector Headlamp) H11LL
Front Fog Lamps LED
Side Indicators LED
Center High Mounted Stop Lamp (CHMSL) 921
Cab Roof Marker Lamps 194NA
Box Off Tail Lamps – Stop/Turn/Tail/License Plate 1157
Box Off Tail Lamps – Back Up 1156
Replacing Exterior Bulbs
BASE QUAD: LOW BEAM HEADLAMP, HIGH
BEAM HEADLAMP, FRONT PARK AND TURN —
IF EQUIPPED
Low Beam
See the following steps to replace:
1. Open the hood.
2. Disconnect and isolate the negative battery cable.
3. Reach into the front wheel house ahead of the front
wheel, remove the fastener, and lift the cover over
the access hole in the front of the wheel house
splash shield. Access to the rear of the lamp can be
gained through this access hole.
4. Reach through the access hole of the wheel house
splash shield and disengage the bulb access cover
by rotating counterclockwise.
5. Disconnect the internal lamp wiring harness connec-
tor from the low beam bulb.
Splash Shield Access Cover Bulb Access Cover
312 SERVICING AND MAINTENANCE
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