Used for: Back Up Reverse Light Bulb, Brake Light Bulb, Turn Signal Light Bulb Rear
Used for: Stepwell Light Bulb, Courtesy Light Bulb, Dome Light Bulb
Used for: Courtesy Light Bulb, Interior Door Light Bulb, Trunk or Cargo Area Light
This page helps you find the correct bulb sizes for the 2022 Acura MDX by lighting position, so you can match the right replacement to the right socket. Whether you are replacing an interior lamp or an exterior signal bulb, checking the bulb chart by location is the easiest way to avoid ordering the wrong part.
For the 2022 Acura MDX, the listed bulb sizes include 194, DE3175, and 7440 depending on the lamp location. Use this guide to verify common fitment points such as the trunk or cargo area light, dome light, courtesy light, stepwell light, brake light, rear turn signal, and back up reverse light.
Fitment can vary by trim, lighting package, market, and body style, so always compare the bulb size on this page with the bulb already installed in your vehicle before buying replacements. Some 2022 Acura MDX models may use halogen bulbs in certain positions while others may have LED assemblies that are not serviced with a simple bulb swap. If you are considering an aftermarket LED conversion, make sure the bulb base, polarity, and physical clearance are compatible with the housing. The safest approach is to confirm the installed bulb type first, especially for exterior lights where different packages can change the exact setup.
The interior-related bulb sizes shown for the 2022 Acura MDX include 194 and DE3175, depending on the lighting position. For example, the trunk or cargo area light and interior door light use 194, while the courtesy light, dome light, and stepwell light use DE3175.
The trunk or cargo area light for the 2022 Acura MDX uses a 194 bulb.
The interior door light bulb listed for the 2022 Acura MDX is 194.
The courtesy light bulb for the 2022 Acura MDX is listed as 194 or DE3175, depending on the exact lighting position and configuration.
The dome light bulb listed for the 2022 Acura MDX is DE3175.
The stepwell light bulb for the 2022 Acura MDX is DE3175.
The brake light bulb listed for the 2022 Acura MDX is 7440.
The rear turn signal light bulb for the 2022 Acura MDX is 7440.
The back up reverse light bulb listed for the 2022 Acura MDX is 7440.
Yes. Trim and lighting package can change the exact bulb setup, especially between different market versions or body styles. Always verify the installed bulb before ordering.
Not always. Some exterior lighting on certain trims may use LED assemblies rather than replaceable bulbs. If the lamp is an LED unit, the bulb chart may not apply in the same way as a standard halogen or incandescent bulb.
Yes. Checking the installed bulb is the best way to confirm fitment, especially if your MDX has been modified or if the vehicle came with a different lighting package than expected.
In many cases, yes, but the replacement must match the socket and fit inside the housing. You should also confirm whether the vehicle needs polarity-compatible LEDs or additional load handling for exterior applications.
