Installing LED Side Markers...

[D/\rK•650]

About 6 minutes in

It is super easy, I haven’t damaged anything using this method. Do the fronts first. If there is a screw it will be in the back. You will know if they really don’t want to pop-out.

Not sure if you have a jack or ramp, but you can also access these from under the car without removing the liners.

Wow thank you much! That definitely should work for me.

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[MCS]

I've been looking at how to do this myself since I have the LMR Sidemarkers (with startup) as well as Heritage-X. This has given me some insight into the easy peasy.

 

[Sig Oris]

Wow thank you much! That definitely should work for me.

Check out the Form Lighting install videos

 

[BlueWayOut]

Mine's a 2026 model GT Premium 401A -- built in February 2026.

I installed the FORM corner marker lights earlier this summer, and it went exactly like the manufacturer's instructional video. No screws.

A very worthwhile upgrade -- glad I did them.

 

[Sig Oris]

Mine's a 2026 model GT Premium 401A -- built in February 2026.

I installed the FORM corner marker lights earlier this summer, and it went exactly like the manufacturer's instructional video. No screws.

A very worthwhile upgrade -- glad I did them.

Wait till you do the Reverse/Brake and Reflector lights from Form Lighting

 

[exm]

Wait till you do the Reverse/Brake and Reflector lights from Form Lighting

My 2 cents: I tried to install both. Couldn't get the reverse/brake light to work and it was a bigger project. I returned it.

The rear reflectors are easy, and if you do them at the same time as the side reflectors, even easier.

 

[FireArrow]

Wait till you do the Reverse/Brake and Reflector lights from Form Lighting

What issue did you have? I can only make the connection if i remove the outer shell from the light harness.

My 2 cents: I tried to install both. Couldn't get the reverse/brake light to work and it was a bigger project. I returned it.

The rear reflectors are easy, and if you do them at the same time as the side reflectors, even easier.

What was your issue with the reverse light? I called and DD sent a new light but I still have the same issue as above.

 

[Sig Oris]

What issue did you have? I can only make the connection if i remove the outer shell from the light harness.



What was your issue with the reverse light? I called and DD sent a new light but I still have the same issue as above.

just right tight areas to work in

 

[Sig Oris]

My 2 cents: I tried to install both. Couldn't get the reverse/brake light to work and it was a bigger project. I returned it.

The rear reflectors are easy, and if you do them at the same time as the side reflectors, even easier.

My 10mm bolt was covered in undercoating. Took me about a 1/2 hour for each one

 

[exm]

What issue did you have? I can only make the connection if i remove the outer shell from the light harness.

What was your issue with the reverse light? I called and DD sent a new light but I still have the same issue as above.

It simply didn't work, tried everything. Had my trunk opened up and got really frustrated. Didn't want to wait for a replacement, so I gave up and returned it. Pain in the you know what to try to install the reverse light.

 

[mks]

Brief update: new side went in. Took all of 20 mins once I knew about the 27 torx bolt on the fronts. The screws cannot be reused as the new markers are not designed to accommodate them. I only needed to remove 3 push pins, starting from the bottom to get enough room to maneuver. The torx bolts were not very snug, so I was able to put my torx in a small extension and turn by hand. *You must also remove the anchor/sleeve piece (see pics below) to get the new markers to fit.

Side note: I found about a sandwich bag worth of dirt and pebbles on all four corners--ugh.

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