Chevrolet 4500HD Series 2019 Manual page 283

282 Vehicle Care
8. Remove the rubber boot (2).
Push the right side of the
clip (1) that holds the bulb (3)
in place and slide it upwards to
disengage the clip.
9. Remove the bulb (1) from the
socket (2) and replace with a
new one.
10. After replacing the bulb,
reverse steps 1-8 to install.
Do not touch the glass of the bulb
with your hand. Soiling the glass will
cause the bulb to blow out.
When attaching the rubber boot,
press in both the outside and inside
circumference of it. Make sure that
the rubber boot, the headlamp
assembly, and the bulb are securely
installed without any raised section.
If the rubber boot is not firmly in
place, water could get inside the
headlamp and lead to a breakdown.
Replacing Parking Lamps
1. Refer to Replacing the
Headlamps and remove the
headlamp assembly.
2. Pull the bulb out from the
parking lamp socket and
replace with a new one.