Reference

Light positions

Guides for each vehicle lighting position — high beam, low beam, fog, brake, reverse, and more. Learn what the lamp does, common names, and how to find the right bulb for your car.

Headlight & fog 4 Exterior signal & marker 13 Interior & accessory 7

Headlight & fog

High Beam BulbsMain-beam / brights headlight position — how to identify and replace the bulb.
Low Beam BulbsDipped-beam headlights used for normal night driving.
High and Low Beam BulbsSingle dual-filament or dual-function headlight bulbs that cover both beams.
Fog Light BulbsFront fog / auxiliary lamps mounted low in the bumper area.

Exterior signal & marker

Rear Fog Light BulbsRear fog lamps used in poor visibility on some markets.
Turn Signal BulbsFront indicator / blinker bulbs for signaling turns and lane changes.
Rear Turn Signal BulbsRear indicator bulbs used with the turn and hazard systems.
Brake Light BulbsStop-lamp bulbs that light when you press the brake pedal.
Center Stop Light BulbsCHMSL / third brake light at the top center of the rear glass or spoiler.
Reverse / Backup Light BulbsWhite reverse / backup lamps that illuminate when the vehicle is in reverse.
Parking Light BulbsSmall parking / position lamps used with sidelights.
Daytime Running Light BulbsDRL bulbs or modules that keep the vehicle visible in daylight.
License Plate Light BulbsNumber-plate illumination bulbs above or beside the rear plate.
Front Side Marker BulbsFront side-marker / clearance lamps on the fender or bumper ends.
Rear Side Marker BulbsRear side-marker lamps that mark vehicle width at night.
Tail Light BulbsRear running / tail lamps used with the parking lights.
Cornering Light BulbsCornering lamps that light the inside of a turn on some vehicles.

Interior & accessory

Dome Light BulbsOverhead cabin dome / courtesy lamps.
Map Light BulbsFocused map / reading lamps near the rearview mirror or console.
Trunk / Cargo Light BulbsTrunk or cargo-area illumination bulbs.
Courtesy Light BulbsDoor, footwell, and other courtesy lamps.
Glove Box Light BulbsGlove-box compartment bulbs.
Vanity Mirror Light BulbsSun-visor vanity mirror lamps.
Step Light BulbsStepwell / running-board entry lamps.