How To Replace Taillights 03-09 Toyota 4Runner
Difficulty: Beginner · About 25 min · Toyota 4runner
Replace a rear taillight assembly on a 2003–2009 Toyota 4Runner, transferring the bulbs and adapter and confirming all lamp functions afterward.
Tools you will need
- 10 mm socket and ratchet
- Trim tool
Parts and supplies
- Taillight assembly or correct replacement bulbs
Steps
Open the rear lamp access
Switch off the ignition and lights, then open the liftgate and remove the interior access panel. Twist the accessible bulb socket free if only a bulb needs replacement.
Remove the taillight
Remove the two mounting fasteners and disconnect the lamp harness. Ease the assembly away from the body without levering against the paint, then transfer the bulb adapter if replacing the housing.
Fit the replacement lamp
Install the matching bulbs and twist each socket or adapter until it locks. Align the assembly studs with the body openings, reconnect the harness, and secure the mounting fasteners.
Reinstall trim and test
Replace the interior access panel and confirm it is seated. Test tail, brake, turn, and reverse lights with a helper before driving.
Check your vehicle’s repair manual for exact specifications and fit.