2022 Jeep Gladiator Bulb Size Guide: Headlight, Tail, Fog & More

As an ASE-certified master technician, I’ve seen countless 2022 Jeep Gladiators (JT) roll into the bay for lighting upgrades and replacements. Whether you are driving a base Sport or a fully loaded Rubicon, knowing your exact bulb sizes is critical before starting any electrical project.

The most important thing to know about the 2022 Jeep Gladiator is that Jeep offered two completely different lighting packages: the standard Halogen package and the premium Factory LED package. If your truck came with the premium Factory LED lighting group, almost all of your exterior lights (headlights, fog lights, fender DRLs, and taillights) are integrated sealed LED units. They do not have replaceable bulbs; if one fails, the entire housing must be replaced.

For those with the standard halogen setup, here is your comprehensive replacement guide.

Quick reference: 2022 Jeep Gladiator Bulb Sizes (Halogen Models)

Note: If your Gladiator features the factory LED Lighting Group, your headlights, fog lights, turn signals, and tail lights are non-serviceable sealed LED assemblies.

LED vs Halogen Upgrade Considerations

Upgrading your halogen Gladiator to aftermarket LEDs is one of the most popular modifications, but it isn't always plug-and-play. Chrysler/Jeep vehicles utilize a sensitive CANBUS electrical system.

If you install standard LED bulbs in the headlights, turn signals, or fog lights, the vehicle's computer will detect a drop in resistance. This typically results in "hyperblinking" (rapid turn signal flashing), bulb-out error messages on the dash, or headlights that flicker and shut off.

To prevent this, you must buy LED bulbs equipped with built-in CANBUS decoders/anti-flicker harnesses, or install external load resistors. Alternatively, you can use a programmer (like a Tazer JL Mini or JScan) to tell the truck's computer that LEDs are installed, which will stop the flickering and error codes natively.

How to Replace Each Bulb

• Headlights (H13): Unlike older vehicles, you can't easily reach behind the headlight housing. You will need to pop the six plastic retaining clips holding the front grille in place, remove the grille, and unscrew the three 10mm bolts holding the headlight housing. Pull the housing forward to swap the H13 bulb.
• Fog Lights (PSX24W): Accessible from underneath the front bumper. Turn the wheels inward to give yourself room, or remove the splash shield. Twist the bulb counter-clockwise to remove.
• Fender Lights (DRL/Turn/Side Marker): These are accessed by removing the inner fender liner retaining clips. It’s a tight squeeze, and many owners opt to replace the entire fender housing with a sequential LED assembly rather than just swapping the 7443 bulbs.
• Tail Lights (Brake/Turn/Reverse): Lower the tailgate and locate the two 8mm bolts on the inner edge of the taillight housing. Remove them, pull the housing straight back, and you will have full access to twist out the sockets for the brake, turn, and reverse bulbs.
• License Plate (194): Reach behind the rear bumper corner, twist the socket counter-clockwise, and pull the 194 bulb straight out.
• Interior Lights: The 2022 Gladiator comes standard with integrated LED map and dome lights. If these fail, the entire overhead console or soundbar light unit must be replaced.

Common Lighting Issues for This Generation

The JT Gladiator (and its JL Wrangler sibling) is generally reliable, but we do see a few recurring lighting complaints in the shop. The most common is water intrusion in the halogen taillights and fender-mounted turn signal housings. If you notice condensation building up inside the lens, it can eventually corrode the bulb socket.

Another common issue is melting halogen headlight sockets. The H13 bulb runs hot, and if an aftermarket bulb with the wrong wattage is installed, the plastic pigtail can melt, requiring a wiring harness repair. Always stick to the factory wattage if you are using halogen bulbs.

Electrical work and lighting upgrades on modern CANBUS-equipped trucks can be frustrating if you don't have the right tools or experience. If you’re running into flickering issues, wiring shorts, or need help aligning your new headlights properly, don't hesitate to get professional help.

Find a trusted shop on Repairius.