Table of Contents
2015-2022 Ford Mustang Reverse Light Bulb LED Install, Change, Replace

Introduction:
This blog will show you step by step how to replace incandescent reverse light bulbs with all-new LED bulbs from ALLA Lighting for 2015-2022 Ford Mustang. Easy step by step. May work for other similar vehicles. Always confirm the correct bulb size required for your vehicle before installation.
Compatible Vehicles:
2015-2022 Ford Mustang
Vehicle used in Video: 2021 Ford Mustang
Tools Needed for Installation:
No additional tools are required
The Following Information shows step by step the installation instructions on how to install reverse lights.
Step #1: Access the incandescent bulb
There is a open gap behind the reverse light to application access the incandescent bulb.
Step #2: Remove the incandescent bulb
Once you have located the incandescent (halogen) bulb, turn the reverse light socket counterclockwise to unlock it. Then pull out the incandescent bulb.
Step #3: Install the LED light bulb and test it
Item Used in video is to replace a stock halogen 3156 and or 3157 bulb Common for 2015-2022 Ford Mustang
Item Title: T25 3156 3157 LED bulbs to upgrade turn signal, back-up reverse, brake stop tail lights or DRL incandescent bulbs
Item SKU: 3157-5730-33
Check out Installation Video
2021 Ford Mustang
Congratulations!! Your installation is now complete in your 2021 Ford Mustang. If you experienced any issues during your installation and unable to complete installation, please contact us for assistance. If the LED bulbs are experiencing hyper-flashing, flickering, an error code issues, then load resistors for this application will be required to be installed. These issues occur due to the LEDs low current nature which draws much less current than original stock halogen bulbs.
Please feel free to contact us at service@allalighting.com or via phone at (909) 606-2935 Monday-Friday 7:00am-5:30pm pst for assistance. Our team of highly trained representatives will be available to assist and provide best solution. May also visit us at www.allalighting.com
Looking for more LED upgrades for your vehicle. Check out the below bulb guide! For your reference only. All information below is not 100% guaranteed accurate. Please check original halogen bulb size before purchasing.
2021 Ford Mustang Vehicle Information Exterior Lights
Low Beam: Stock Bulb size # : LED (not serviceable by user)
High Beam: Stock Bulb size # : LED (not serviceable by user)
Fog Light: Stock Bulb size # : LED (not serviceable by user)
Front Turn Signal Light: Stock Bulb size # : LED (not serviceable by user)
Front Side Marker Light: Stock Bulb size # : LED (not serviceable by user)
Rear Turn Light: Stock Bulb size # : LED (not serviceable by user)
Rear Side Marker Light: Stock Bulb size # : 194 https://allalighting.com/products/194-175-led-bulbs-super-bright-12v-w5w-6k-white-interior-lights
Brake Light: Stock Bulb size # : LED (not serviceable by user)
Tail Light: Stock Bulb size # : LED (not serviceable by user)
Back-Up Reverse Light: Stock Bulb size # : 3157 https://allalighting.com/products/t25-3156-3157-led-turn-signal-brake-stop-tail-reverse-lights-bulbs
Center High Mount/ 3rd Brake Light: Stock Bulb size # : LED (not serviceable by user)
License Plate Light: Stock Bulb size # : LED (not serviceable by user)
2021 Ford Mustang Vehicle Information Interior Lights
Interior Dome Light: Stock Bulb size # : 194 https://allalighting.com/products/w2-1-9-5d-base-t10-wedge-168-194-led-bulbs-interior-lights-replacement
Interior Map Light: Stock Bulb size # : 194 https://allalighting.com/products/194-175-led-bulbs-super-bright-12v-w5w-6k-white-interior-lights
Trunk/Cargo Light: Stock Bulb size # : 194 https://allalighting.com/products/t10-168-194-led-bulbs-license-plate-interior-map-dome-trunk-lights
Glove Box Light: Stock Bulb size # 194 https://allalighting.com/products/194-168-led-bulbs-12v-interior-map-dome-trunk-courtesy-lights-w5w-2825
Vanity Mirror Light: Stock Bulb size # T5 https://allalighting.com/products/t5-37-74-79-led-bulbs-instrument-speedo-gauge-cluster-lights-2721-73
Important Information: applications listed as Stock Bulb #LED is not serviceable by user. Unable to replace stock LED bulb with aftermarket LED bulb for most cases. ALLA Lighting does not offer replacement bulbs to replace a Stock LED.