What headlight bulb does the Grand Cherokee use?

The Replacement Bulbs section of the 2026 manual says: "The exterior lights are LED, for replacement of any LED lamps, see an authorized dealer." It says the same about the interior lights.

That means the manual lists no replaceable headlight, fog light or tail light bulb numbers for the 2026 Grand Cherokee. If a lamp is out, the manual's instruction is to see an authorized dealer rather than replace it yourself.

The manual also lists a chime as a lights-on reminder: if the headlights or parking lights are left on after the ignition is placed in the OFF position, a chime sounds when the driver's door is opened.

From the 2026 Jeep Grand Cherokee owner's manual (Replacement Bulbs, Names, And Part Numbers; Lights-On Reminder), read November 8, 2026.

How the Grand Cherokee headlight switch works

The headlight switch is on the left side of the instrument panel, next to the steering wheel. It controls the headlights, parking lights, instrument panel lights and fog lights (if equipped).

To turn on the headlights, rotate the switch clockwise. When the headlights are on, the parking lights, taillights, license plate light and instrument panel lights are also on. To turn them off, rotate the switch back to the O (off) position. To turn on only the parking lights and instrument panel lights, rotate the switch clockwise to the parking lights position.

Vehicles sold in Canada have a switch with AUTO and ON detents but no OFF detent; the manual describes that version separately.

From the 2026 Jeep Grand Cherokee owner's manual (Headlight Switch; Parking Lights And Panel Lights), read November 8, 2026.

Automatic headlights, headlight delay and lights with wipers

Automatic headlights turn the headlights on or off according to ambient light levels. To turn the system on, rotate the headlight switch counterclockwise to the AUTO position. The engine must be running before the headlights will come on in automatic mode.

When the automatic system is on, the headlight time delay is on too: the headlights stay on for up to 90 seconds after you place the ignition in the OFF position. The delay can be programmed to 0, 30, 60 or 90 seconds in Uconnect Settings.

With automatic headlights you also get Headlights On Automatically With Wipers: in automatic mode with the engine running, the headlights turn on when the wiper system is on. This is programmable in Uconnect Settings.

Headlight Illumination On Approach turns on the headlights, exterior door handle pocket lights (if equipped) and interior lights when you push unlock on the key fob as you walk up. It can be turned on or off, and set for up to 90 seconds, in Uconnect Settings.

From the 2026 Jeep Grand Cherokee owner's manual (Automatic Headlights; Headlights On Automatically With Wipers; Headlight Illumination On Approach), read November 8, 2026.

High beams, automatic high beams and flash-to-pass

Push the multifunction lever (left side of the steering column) toward the instrument panel for high beams; pull it back toward the steering wheel to return to low beams. Lightly pulling the lever toward you flashes the high beams until you release it.

Automatic High Beams (if equipped) use a camera on the inside rearview mirror to switch from high beams to low beams until an approaching vehicle is out of view. To use them, select Auto Dim High Beams in Uconnect Settings and turn the headlight switch to AUTO. They only activate above 22 mph (35 km/h).

The manual notes that dirt, film or other obstructions on the windshield or camera lens will make the system work improperly, and that if the windshield or the Automatic High Beam control mirror is replaced, the mirror must be re-aimed by an authorized dealer.

From the 2026 Jeep Grand Cherokee owner's manual (Multifunction Lever; High/Low Beam Switch; Automatic High Beams; Flash-To-Pass), read November 8, 2026.

Fog lights and Daytime Running Lights

To turn on the front fog lights (if equipped), turn on the parking lights or the low beam headlights and push the fog light button on the headlight switch.

The Daytime Running Lights (if equipped) come on whenever the engine is running and the low beams are not on. The manual says the low beams must be used for normal nighttime driving. Where allowed by law, DRLs can be turned on and off in Uconnect Settings, and on some vehicles they may dim or switch off on one side while that turn signal is on.

From the 2026 Jeep Grand Cherokee owner's manual (Front Fog Lights; Daytime Running Lights), read November 8, 2026.

Cleaning the headlight lenses

The Grand Cherokee has plastic headlight and fog light lenses. The manual says plastic is not as scratch resistant as glass, so do not use abrasive cleaners, solvents, steel wool or other abrasive materials, and avoid wiping with a dry cloth. To remove road dirt, wash with a mild soap solution, then rinse.

From the 2026 Jeep Grand Cherokee owner's manual (Exterior Lights), read November 8, 2026.

Grand Cherokee service at Elgin CDJR

If a headlight or other exterior lamp on your Grand Cherokee 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.