Jeep Gladiator exterior bulb chart

The manual's Replacement Bulbs, Names, And Part Numbers tables list these exterior bulbs. It recommends seeing an authorized dealer for LED bulb replacement, and notes the numbers refer to commercial bulb types that can be purchased from an authorized dealer.

The manual also says to always use the correct bulb size and type, because an incorrect bulb may overheat and damage the lamp, the socket or the lamp wiring.

From the 2026 Jeep Gladiator owner's manual (Replacement Bulbs, Names, And Part Numbers; Rear Tail, Stop, Turn Signal, And Backup Lamp caution), read November 8, 2026.

How to replace a Gladiator halogen headlamp bulb

The manual's steps for halogen headlamps (if equipped) are:

1. Open the hood and support it using the prop rod.
2. Remove the front grille. Turn the retainers along the top a quarter turn counterclockwise and remove them.
3. Pull the bottom of the grille away, starting at one side and working toward the other.
4. Remove the three screws holding the headlamp to the vehicle.
5. Remove the lamp from the vehicle.
6. Remove the lamp from the collar.
7. Grab the bulb and turn it a quarter turn counterclockwise.
8. Pull the bulb from the housing.
9. Push the connector locking tab to the unlock position.
10. Remove the connector from the bulb.
11. Push the connector onto the new bulb base, and push the connector locking tab to the lock position.
12. Reinstall the bulb housing. Rotate the bulb a quarter turn clockwise.

From the 2026 Jeep Gladiator owner's manual (Bulb Replacement: Halogen Headlamps), read November 8, 2026. The manual cautions not to touch the new bulb with your fingers, since oil contamination will severely shorten bulb life (clean it with rubbing alcohol if it touches an oily surface), and recommends seeing an authorized dealer for service.

Front park/turn signal and side marker

For the front park/turn signal, the manual's steps are: remove the front wheel liner fasteners to access the bulb sockets, then turn the socket assembly a quarter turn counterclockwise and remove it from the housing, and pull the bulb straight from the socket to replace it. It recommends seeing an authorized dealer for service.

The front side marker is LED. The manual's steps are to remove the front wheel liner fasteners to reach the side marker screw and connector, remove the fastening screw in the back of the assembly and disconnect the connector, then remove and replace the LED side marker light assembly.

From the 2026 Jeep Gladiator owner's manual (Front Park/Turn Signal; LED Front Side Marker), read November 8, 2026.

Front fog lamps

For the front fog lamp (if equipped), the manual's steps are:

1. Reach under the vehicle to access the back of the front fog lamp.
2. Disconnect the wire harness connector from the front fog lamp connector receptacle.
3. Firmly grab the bulb by the two latch features and squeeze them together to unlock the bulb from the back of the front fog lamp housing.
4. Pull the bulb straight out from the keyed opening in the housing and then connect the replacement bulb.

From the 2026 Jeep Gladiator owner's manual (Front Fog Lamp; LED Front Fog Lamp), read November 8, 2026. LED fog lamps are replaced as an assembly, and the manual recommends seeing an authorized dealer for service.

How the Gladiator headlight switch works

The headlight switch is on the left side of the instrument panel. Rotate it clockwise to the first detent for the parking lights and instrument panel lights, and to the second detent for the headlights, parking lights and instrument panel lights.

Automatic headlights (if equipped) turn the headlights on or off according to ambient light levels; rotate the switch clockwise to the last detent. The engine must be running before the headlights come on in automatic mode, and with the system on, the headlights stay on for up to 90 seconds after the ignition is placed in OFF (programmable in Uconnect Settings).

To turn on the front fog lights (if equipped), turn on the parking lights or low beam headlights and push the fog light switch; push it again to turn them off. The Daytime Running Lights (if equipped) are in a dedicated position below the headlight assembly.

From the 2026 Jeep Gladiator owner's manual (Headlight Switch; Automatic Headlights; Front Fog Lights; Daytime Running Lights), read November 8, 2026.

High beams, automatic high beams and turn signals

With the headlight switch on, push the multifunction lever toward the instrument panel to switch to high beams; the lever returns to center. To return to low beams, pull the lever toward the steering wheel or push it toward the instrument panel. Pull and hold the lever to flash the high beams.

Automatic High Beam Headlamp Control (if equipped) uses a camera mounted on the vehicle's header to switch from high beams to low beams until an approaching vehicle is out of view. Turn it on by selecting ON under Auto Dim High Beams in Uconnect Settings, turning the headlight switch to AUTO and placing the multifunction lever in the high beam position. Dirt, film and other obstructions on the windshield or camera lens will cause it to function improperly.

If a turn signal light stays on and does not flash, or flashes very fast, the manual says to check for a defective outside light bulb.

From the 2026 Jeep Gladiator owner's manual (High/Low Beam Switch; Automatic High Beam Headlamp Control; Flash-To-Pass; Turn Signals), read November 8, 2026.

Cleaning the headlight lenses

The Gladiator has plastic headlights and fog lights, which the manual says are lighter and less susceptible to stone breakage than glass. Plastic is not as scratch resistant as glass, so to minimize scratching and reduced light output, avoid wiping the lenses with a dry cloth; to remove road dirt, wash with a mild soap solution.

From the 2026 Jeep Gladiator owner's manual (Cleaning Headlights), read November 8, 2026.

Gladiator service at Elgin CDJR

If a headlight or other lamp on your Gladiator is out, our Jeep service center can check it. Our service department is open Monday to Friday 7 a.m. to 7 p.m. and Saturday 7:30 a.m. to 4 p.m., and is closed Sunday. Elgin CDJR is at 1500 W. Lake St. in Streamwood. Get directions.