What Size Bulbs Does a 2014 Cadillac ELR Use?
Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.
Installation Difficulty
Easy (Plug and Play)
Est. Replacement Cost
$15 - $40 (Halogen) / $30+ (LED)
What Lighting System Does the 2014 Cadillac ELR Have?
The 2014 Cadillac ELR features an extensive lighting system with 13 bulb positions. It uses factory LED technology with integrated LED headlight modules. The ELR has been available from 2014 to 2016, and the 2014 model falls in the early-generation years.
Can You Put LED Bulbs in a 2014 Cadillac ELR?
Upgrading the 2014 Cadillac ELR to LED headlights is straightforward since it uses a single LED Headlights dual-filament bulb for both low and high beams. You only need one pair of LED bulbs to upgrade both functions. Look for a LED Headlights LED kit that specifically supports dual-filament operation to ensure both beams work correctly. For the fog lights, a LED Fog Light LED bulb provides a clean white output that pairs well with LED headlights.
How to Replace Bulbs on a 2014 Cadillac ELR
To remove the headlight bulb, disconnect the wiring harness, then twist the bulb counter-clockwise and pull it straight out of the housing. Older model years like the 2014 ELR typically offer easy access to the headlight bulbs from behind the headlight assembly under the hood. Most owners can complete the swap in under 10 minutes per side. This vehicle has factory-integrated LED headlight modules. These are not user-serviceable bulbs. If your LED headlights fail, the entire headlight assembly or LED module may need to be replaced by a dealer or qualified technician. The fog lights are accessed from underneath the front bumper. You may need to remove a few plastic clips or screws from the fender liner to reach the LED Fog Light fog light socket.
Full Upgrade Bundle
Upgrade All 13 Positions at Once
2014 Cadillac ELR Complete Bulb Size Chart
| Position | Bulb Size | Shop |
|---|---|---|
Low Beam | LED Headlights | Buy LED Headlights |
High Beam | LED Headlights | Buy LED Headlights |
Fog Light | LED Fog Light | Buy LED Fog Light |
Brake Light | LED Bulb | Buy LED Bulb |
Side Marker | LED Bulb | Buy LED Bulb |
Turn Signal Front | LED Bulb | Buy LED Bulb |
Turn Signal Rear | LED Bulb | Buy LED Bulb |
Reverse Light | 921K | Buy 921K |
Dome Light | LED Bulb | Buy LED Bulb |
License Plate | 2825 | Buy 2825 |
Map Light | LED Bulb | Buy LED Bulb |
Parking Light | LED Bulb | Buy LED Bulb |
Trunk Light | LED Light | Buy LED Light |
Want to upgrade everything at once?
Shop Complete LED Kit for 2014 Cadillac ELRHow Long Do 2014 Cadillac ELR Headlight Bulbs Last?
Factory LED headlights on the 2014 Cadillac ELR are rated for approximately 25,000 to 50,000 hours of use, which translates to roughly 10 to 15 years of normal driving. LED modules rarely burn out suddenly. Instead, they gradually dim over time or develop dead zones within the LED array. At 12 years old, the original bulbs on your ELR are likely overdue for replacement, though LED modules may still have life left. Even if they still illuminate, reduced brightness significantly impacts nighttime safety. When one headlight burns out, replace both sides at the same time. Bulbs from the same batch age at similar rates, and mismatched brightness is distracting to oncoming drivers.
What Bulbs Are Compatible with the 2014 Cadillac ELR?
Using the wrong bulb size can cause improper beam patterns that reduce your visibility and blind other drivers. It can also cause overheating inside the headlight housing, potentially warping the plastic lens or reflector. Always verify the bulb number before purchasing.
2014 Cadillac ELR Headlight FAQ
Did Cadillac ELR Bulb Sizes Change Over the Years?
The Cadillac ELR has maintained consistent bulb sizes across all model years from 2014 to 2016. The low beam has used a LED Headlights bulb throughout, which means replacement parts and LED upgrade kits are widely available and well-tested for this model. If you find a deal on bulbs for any ELR year in this range, they will fit your 2014 model.