Used for: Back Up Reverse Light Bulb
Used for: Parking Light Bulb, Turn Signal Light Bulb Front
Used for: Side Marker Light Bulb Front
Used for: Turn Signal Light Bulb Rear
Used for: Interior Door Light Bulb
Used for: Trunk or Cargo Area Light
Used for: Trunk or Cargo Area Light
Used for: Vanity Mirror Light Bulb
This page helps you verify bulb sizes for the 2014 Acura RLX by lighting position, so you can match the correct replacement before you buy. Whether you are replacing an exterior signal lamp or a small interior courtesy light, checking the bulb chart by location is the easiest way to avoid ordering the wrong part.
The 2014 Acura RLX uses a mix of LED and conventional bulb types depending on the lamp position, and some fitment can vary by trim, lighting package, market, or body style. Use the listings on this page as a guide for common bulb locations such as headlights, brake lights, parking lights, reverse lights, license plate lights, and cabin lighting.
For best results, confirm the exact bulb type already installed in your RLX before purchasing replacements, especially if your car has been modified or equipped with a different lighting package. Some exterior positions are LED assemblies, while others use replaceable bulbs, and aftermarket LED conversions may change the required size, connector style, or polarity. If you are unsure, compare the old bulb, check the owner’s manual, and verify the socket before ordering so you can avoid fitment issues and return hassles.
It is a bulb-size reference for the 2014 Acura RLX. The goal is to help you find the correct replacement by lighting position, such as headlight, tail light, brake light, reverse light, or interior lamp.
No. The RLX uses LED lighting in several positions, but some bulbs are still replaceable conventional types. This page separates the lighting locations so you can see which areas use LED assemblies and which use specific bulb sizes.
The chart lists both high beam and low beam headlight lighting as LED. That usually means the headlamp function is part of an LED system rather than a simple plug-in halogen bulb, so fitment can differ from traditional bulb replacements.
The back up reverse light bulb is listed as 921.
The rear turn signal light bulb is listed as 7440.
Both the front turn signal light bulb and the parking light bulb are listed as 1157A.
The front side marker light bulb is listed as 168NA.
The rear side marker light bulb is listed as LED on this page, so it is not shown as a standard replaceable bulb size here.
The license plate light bulb is listed as LED.
The trunk or cargo area light is listed with 168 and 917 bulb options.
The interior door light bulb is listed as 158.
The vanity mirror light bulb is listed as 24.
Yes. Trim, lighting package, market, and body style can all affect the exact bulb setup. Always compare the bulb chart with the lamp already installed in your vehicle before buying.
Not necessarily. Some positions are already LED, while others use specific bulb sizes. If you want to convert a halogen-style position to LED, make sure the replacement matches the socket, beam pattern, and any vehicle electronics requirements.
Check the bulb currently installed in the vehicle, verify the socket shape, and compare it to the listing for that exact lighting position. This is especially important on the 2014 Acura RLX because some lamps are LED assemblies and others use standard bulb sizes.
