Headlamp Aiming; Front Headlamp Aiming; Bulb Replacement; Halogen Bulbs - Cadillac CT4 2023 Owner's Manual

312 Vehicle Care

Headlamp Aiming

Front Headlamp Aiming

Headlamp aim has been preset and should
need no further adjustment.
If the vehicle is damaged in a crash, the
headlamp aim may be affected.
If adjustment to the headlamps is necessary,
see your dealer.

Bulb Replacement

For the proper type of replacement bulbs,
or any bulb changing procedure not listed in
this section, contact your dealer.
Caution
Do not replace incandescent bulbs with
aftermarket LED replacement bulbs. This
can cause damage to the vehicle electrical
system.

Halogen Bulbs

Warning
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.

High Intensity Discharge (HID)

Lighting

Warning
The High Intensity Discharge (HID)
lighting system operates at a very high
voltage. If you try to service any of the
system components, you could be
seriously injured. Have your dealer or a
qualified technician service them.
After an HID headlamp bulb has been
replaced, the beam might be a slightly
different shade than it was originally. This is
normal.

LED Lighting

This vehicle has several LED lamps. For
replacement of any LED lighting assembly,
contact your dealer.

Front Turn Signal Lamps

Uplevel
See your dealer for turn signal replacement.
Base level
To replace one of these lamps:
1. Open the hood.
2. If your vehicle is equipped with a beauty
cover, remove the beauty cover to get
access to the bulb.