Used for: Fog Light Bulb Rear, Brake Light Bulb, Turn Signal Light Bulb Rear
Used for: Headlight Bulb High Beam and Low Beam
Used for: Back Up Light Bulb, Back Up Reverse Light Bulb, Center High Mount Stop Light Bulb, Trunk or Cargo Area Light
Used for: Brake Light Bulb
Used for: License Plate Light Bulb, Side Marker Light Bulb Front, Dome Light Bulb, Reading Light Bulb Rear
Used for: Parking Light Bulb, Turn Signal Light Bulb Front
Used for: Turn Signal Light Bulb Front, Turn Signal Light Bulb Rear
Used for: Courtesy Light Bulb, Glove Box Light Bulb
This page helps you verify bulb sizes for the 2018 Chevrolet Bolt EV by lighting position, so you can match the correct bulb before you buy. Because the Bolt EV uses a mix of LED lighting and replaceable bulbs, checking the exact location is the easiest way to avoid ordering the wrong part.
Use the chart on this page to identify common exterior and interior bulb fitments for the 2018 Chevrolet Bolt EV. It covers items such as the headlight bulb, turn signals, brake lights, reverse lights, license plate lights, dome lights, and small courtesy or glove box bulbs.
Fitment can vary by trim, lighting package, market, and body style, so always confirm the bulb in your vehicle before purchasing replacements. Some positions on the 2018 Chevrolet Bolt EV use LED assemblies rather than serviceable bulbs, while other locations may use standard replaceable bulbs. If you are considering an aftermarket LED conversion, make sure the bulb base, polarity, and housing clearance are compatible, and remember that not every socket will accept an LED upgrade cleanly. The safest approach is to inspect the installed bulb or compare the old bulb to the replacement part before ordering.
The headlight bulb listed for both high beam and low beam is D3S. This is the key fitment to check if you are replacing the main headlamp bulbs on a 2018 Chevrolet Bolt EV.
The front fog light is listed as LED. In many cases that means the lamp is part of an LED assembly rather than a simple plug-in bulb, so verify the exact housing before ordering parts.
The brake light bulb is listed as 7440, with 7440R also shown for this application. Confirm the socket and bulb type in your vehicle before purchase.
The rear turn signal bulb is listed as 7440A or 7440, depending on the exact lighting setup. Checking the installed bulb is the best way to confirm which version your car uses.
The front turn signal bulb is listed as 7444NA or 7440A, and the parking light bulb is listed as 7444NA. These positions should be matched carefully because the front lighting layout can vary.
The back up reverse light bulb is listed as 921, and the back up light bulb is also listed as 921. If your Bolt EV has separate reverse lamp locations, both should be checked individually.
The center high mount stop light bulb is listed as 921. This is the third brake light mounted higher on the vehicle.
The dome light bulb is listed as 2825, the courtesy light bulb is 194, the glove box light bulb is 194, and the rear reading light bulb is 2825. These are common interior fitments on the 2018 Chevrolet Bolt EV.
The license plate light bulb is listed as 2825. This is a common small wedge-style bulb size used at the rear plate area.
Yes. The tail light bulb, daytime running light bulb, rear side marker light bulb, and front fog light bulb are listed as LED. These may be integrated LED units rather than standard replaceable bulbs.
Yes. Trim level, lighting package, market, and body style can affect bulb fitment. Always compare the bulb chart with the actual bulb installed in your vehicle before buying replacements.
Check the bulb base, polarity, physical clearance, and whether the housing is designed for a standard bulb or an LED assembly. Some aftermarket LED conversions work well, but others may not fit correctly or may not function as intended.
