How to Replace Fog Lights 97-98 Jeep Grand Cherokee

Difficulty: Intermediate · About 70 min · Jeep Grand Cherokee

Install replacement fog lamps and their switch circuit on a 1997–1998 Jeep Grand Cherokee, carefully opening the bumper for the kit, reconnecting the lighting and relay, and testing both lamps.

Steps

1. Mark the bumper openings

   Confirm the fog lamp kit and supplied template match the bumper before cutting. Mark each opening from the template and verify clearance behind the plastic; remove only the marked material and smooth the cut edges.

2. Remove the grille and lamps for access

   Remove the grille screws and lift the grille from its locating tabs. Unbolt the headlamps and remove the marker and parking lamps, unplugging each connector and keeping the bulbs and fasteners organized.

3. Remove the bumper cover

   Release the upper, wheel-well, and lower bumper retainers. Pull the cover forward evenly and disconnect any attached wiring before setting it on a protected surface.

4. Install the fog lamps

   Fit each fog lamp into its new bumper opening and secure it with the kit hardware. Connect the lamp harnesses and route the wiring away from sharp edges, moving parts, and hot components.

5. Install the switch and relay

   Reinstall the bumper and exterior lamps, reconnecting each original plug. Remove the specified dash trim and fit the fog lamp switch. Install the kit relay and fuse only in the designated positions and ratings, following the vehicle wiring diagram.

6. Reassemble and test the lights

   Secure all harnesses, replace the interior panels and grille, and check that every bumper clip and lamp fastener is seated. Turn on the required lighting and test both fog lamps and the switch; correct any wiring or aiming issue before driving.

Check your vehicle’s repair manual for exact specifications and fit.