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Forward Lighting
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Exterior Lighting
- Back Up Light Bulb » 921
- Brake Light Bulb » 3157
- Daytime Running Light Bulb (w/halogen capsule headlamps) » H11
- Parking Light Bulb (w/halogen capsule headlamps) » 7444NA
- Side Marker Light Bulb Front (w/halogen capsule headlamps) » 2825
- Stepwell Light Bulb » 906
- Turn Signal Light Bulb Front (w/halogen capsule headlamps) » 7444NA
- Turn Signal Light Bulb Rear » 7440A
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Interior Lighting
2015 Jeep Grand Cherokee Headlight Bulb Size
The 2015 Grand Cherokee received a significant headlight refresh that changed the low beam bulb from the earlier H11 to the 9012 (HIR2) socket, making this the first WK2 model year with the updated housing design. Alongside the new lighting, the 2015 lineup introduced the Summit trim that blurred the line between SUV and luxury sedan, plus an EcoDiesel V6 option for drivers who wanted highway fuel economy without sacrificing the Grand Cherokee's 7,200-pound tow rating. The 2015 Jeep Grand Cherokee headlight bulb size is 9012 (HIR2) for the low beams, 9005 for the high beams, and H11 for the fog lights. Laredo trims use halogen, while Limited, Overland, and Summit models came with HID projector headlights.
Because the 9012 is not stocked as widely as common sizes like H11 or 9006, many 2015 Grand Cherokee owners discover the bulb type for the first time when a low beam burns out. Upgrading to 2015 Jeep Grand Cherokee LED headlights during that replacement turns a maintenance chore into a meaningful visibility improvement.
Upgrading the 2015 Grand Cherokee Headlights
LED kits built for the 9012 socket are the straightforward choice for the 2015 Grand Cherokee. The bulb drops into the factory housing with the correct tab orientation, produces a clean white 6000K beam from the first second, and runs at a lower operating temperature than the halogen it replaces. Installation is a simple twist-and-lock procedure accessible from behind the headlight housing under the hood.
For owners who tow the EcoDiesel's rated payload through dark highways or camp on BLM land miles from any streetlight, an HID xenon kit offers maximum throw distance. The trade-off is a brief warm-up period and a compact ballast to mount per side. Most installers finish both headlights in under 45 minutes.
HID Nation includes free shipping with every order and stands behind each kit with a lifetime warranty covering bulbs, drivers, and ballasts.
Frequently Asked Questions
What is the 2015 Jeep Grand Cherokee headlight bulb size?
The 2015 Jeep Grand Cherokee uses 9012 (HIR2) bulbs for the low beams, 9005 (HB3) bulbs for the high beams, and H11 bulbs for the fog lights. This fitment applies to halogen-equipped trims. The Limited, Overland, and Summit trims came with factory HID projector headlights that use a D-series capsule instead of the 9012 halogen.
Why did the 2015 Grand Cherokee switch from H11 to 9012 low beams?
The 2015 model year brought redesigned headlight housings as part of the WK2 mid-cycle refresh. The new housing geometry was optimized for the 9012 (HIR2) bulb, which uses a slightly different filament position than the H11 to better match the updated reflector shape. Earlier WK2 models from 2011 through 2013 used H11 low beams in a different housing design.
Can I put an H11 LED bulb in my 2015 Grand Cherokee instead of a 9012?
The 9012 and H11 share the same electrical plug, so an H11 will power on in a 9012 socket. However, the plastic base tabs are different, requiring you to shave one tab for the H11 to lock in. A purpose-built 9012 LED fits without modification, seats securely in the housing, and aligns the LED chips where the reflector expects the light source to be.
Does the 2015 Grand Cherokee EcoDiesel use different headlight bulbs?
No. The headlight bulb fitment on the 2015 Grand Cherokee is determined by trim level and headlight housing type, not by engine choice. Whether you have the 3.6L Pentastar V6, the 5.7L HEMI V8, or the 3.0L EcoDiesel V6, the halogen-equipped models all use 9012 low beams, 9005 high beams, and H11 fog lights.
How do I install LED headlights on a 2015 Jeep Grand Cherokee?
Reach behind the headlight assembly from the engine bay side. Disconnect the two-pin connector from the 9012 bulb, twist the retainer ring counterclockwise, and slide the old halogen out. Insert the new 9012 LED bulb, turn the retainer clockwise to lock it, and reconnect the plug. Secure the LED driver to a nearby bracket or use the included zip tie. Both sides take about 25 minutes total.