Used for: Back Up Reverse Light Bulb
Used for: License Plate Light Bulb
Used for: License Plate Light Bulb
Used for: Turn Signal Light Bulb Front
Used for: Dome Light Bulb
Used for: Dome Light Bulb
This 2018 Buick Enclave bulb size page is designed to help you verify the correct bulb by lighting position before you buy replacements. Whether you are changing a reverse light, interior lamp, or exterior signal, checking the bulb chart by location is the easiest way to match the right fit for your Enclave.
The 2018 Buick Enclave uses LED lighting for many exterior and interior positions, while a few service items still use replaceable bulb numbers. Because bulb fitment can vary by trim, market, and lighting package, it is important to confirm the exact location on the vehicle before ordering parts.
For best fitment, compare the bulb listed for your specific trim and equipment level with the bulb already installed in the vehicle. Some 2018 Enclave models may use different lighting setups depending on factory package or body style, and aftermarket LED conversions can change beam pattern, brightness, or warning behavior. If you are replacing a bulb that is not clearly identified, remove the old bulb first and check the base type and markings before purchase. This is especially useful for halogen-to-LED upgrades, since the original socket may fit but the new bulb may still need a compatible design or resistor to work properly.
The chart for this page lists the headlight high beam and low beam as LED. That means the headlight assembly is not serviced here with a standard replaceable halogen bulb size.
Yes. The daytime running light bulb position is listed as LED for the 2018 Buick Enclave.
The brake light bulb is listed as LED. If you are replacing a brake lamp issue, confirm whether the problem is the LED module, wiring, or another lighting component rather than a traditional bulb.
The back up reverse light bulb is listed as 921.
The license plate light bulb sizes listed are 168 and 917. Either may appear depending on the specific lamp setup.
The dome light bulb is listed as 194 or 7441.
The front turn signal light bulb is listed as 7444NA for the optional raw list on this page.
The rear turn signal light bulb is listed as LED.
Yes. The tail light bulb and parking light bulb positions are both listed as LED on this page.
Yes. The map light bulb and trunk or cargo area light are listed as LED positions, so you should verify the exact lamp type in your vehicle before ordering replacements.
Because the same 2018 Buick Enclave can have different lighting equipment depending on trim, package, and market. Matching by position helps avoid ordering the wrong bulb type.
Yes, but fitment and function can vary. Aftermarket LED conversions may need compatible bulbs or additional hardware to prevent flicker, warning messages, or poor beam pattern.
Check the installed bulb first, confirm the exact light position, and compare it with the chart on this page. That is the safest way to confirm the correct fit before purchase.
