I love how they integrated the placement of the DOT required bumper reflectors. I will plan on illuminating them like I did on my old WRX hatchback if possible. This was one of my favorite non-performance mods and was easy and cheap.
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Rear Bumper Reflectors
hatchbacksR4grandmas
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2023 HM GRC CE, 1998 Evo 5, 2000 Impreza 2.5RS Coupe, DD 2024 Ford Maverick hybrid
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3,858 Posts
Looks good! I have the same lights, just been lazy and haven't installed them. Plus that and it's too damn hot outside to do anything. I'll eventually get around to it and post up a DIY for it.
2023 GRC CE, 2007 Sierra 3500 LBZ DRW 4x4, 1988 4Runner SR5 3.4 swapped
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192 Posts
Unless there’s clear instructions in another thread, I haven’t seen any so i figured I’d do a write up.
1. Take off the corner under-guard pieces directly below the reflectors. They’re held on by 3 push clips and a single flat head threaded clip thing (circled below). The three clips were already pretty stubborn after only 5000 miles. The threaded one was even more annoying. It doesn’t completely thread off so just back it off as much as you can and give it a real hard yank. I busted my knuckle doing it so maybe wear gloves for that part.
![Image]()
2. Remove the reflectors. Super easy. One Philips screw and two tabs. It can’t be a long screwdriver fyi.
![Image]()
3. drill a hole for the wires to go through. I used a 3/16 bit and it was perfect. I just eyeballed the location and it ended up right where it needed to be. Sorry I only got a pic from the back. You can see the hole was basically right on the edge of the molded indentation.
![Image]()
4. I’d strongly recommend running a bead of silicone along the seam. It didn’t seem particularly well sealed and there’s nothing worse than getting moisture in your fresh china lights. Before you install the new lights, I’d also transfer the little pad things from the original reflectors to prevent any vibration. They just slide onto the tabs. Sorry, no pics of this step but it’s pretty self explanatory.
5. Remove the taillights. Full disclosure, a little nerve wracking. They don’t come off easy. The bolt cover panel in the hatch drip rail is super easy. Did it by hand and just popped right off.
![Image]()
As you can see the tabs are mild. The tail light itself was the opposite. Take off the two 10 mm bolts and then you kinda have to pry it out. I’d put one hand on the forward edge of the light to stabilize and use your other hand to basically pry outwards from the bolted part. Here’s pics of the hardware.
![Image]()
![Image]()
![Image]()
The green tab on the front is basically just a guide and it angles pretty aggressively outward which is why it seems the lights are designed to be pried outwards.
6. Fish the wire up through the small gap below the tail light. Not too hard. Did it by myself with my hands just laying on a creeper.
7. As was mentioned earlier, wires go red>red, black>black, white>blue. This is the only part I didn’t do yet because apparently my soldering supplies have gone missing and I didn’t have any connectors I felt good enough about. Ordered some new soldering stuff and will be here in 2 days. I’ll post pics of the finished product this weekend when I wrap it up.
Hope that was helpful 👍🏼
1. Take off the corner under-guard pieces directly below the reflectors. They’re held on by 3 push clips and a single flat head threaded clip thing (circled below). The three clips were already pretty stubborn after only 5000 miles. The threaded one was even more annoying. It doesn’t completely thread off so just back it off as much as you can and give it a real hard yank. I busted my knuckle doing it so maybe wear gloves for that part.
2. Remove the reflectors. Super easy. One Philips screw and two tabs. It can’t be a long screwdriver fyi.
3. drill a hole for the wires to go through. I used a 3/16 bit and it was perfect. I just eyeballed the location and it ended up right where it needed to be. Sorry I only got a pic from the back. You can see the hole was basically right on the edge of the molded indentation.
4. I’d strongly recommend running a bead of silicone along the seam. It didn’t seem particularly well sealed and there’s nothing worse than getting moisture in your fresh china lights. Before you install the new lights, I’d also transfer the little pad things from the original reflectors to prevent any vibration. They just slide onto the tabs. Sorry, no pics of this step but it’s pretty self explanatory.
5. Remove the taillights. Full disclosure, a little nerve wracking. They don’t come off easy. The bolt cover panel in the hatch drip rail is super easy. Did it by hand and just popped right off.
As you can see the tabs are mild. The tail light itself was the opposite. Take off the two 10 mm bolts and then you kinda have to pry it out. I’d put one hand on the forward edge of the light to stabilize and use your other hand to basically pry outwards from the bolted part. Here’s pics of the hardware.
The green tab on the front is basically just a guide and it angles pretty aggressively outward which is why it seems the lights are designed to be pried outwards.
6. Fish the wire up through the small gap below the tail light. Not too hard. Did it by myself with my hands just laying on a creeper.
7. As was mentioned earlier, wires go red>red, black>black, white>blue. This is the only part I didn’t do yet because apparently my soldering supplies have gone missing and I didn’t have any connectors I felt good enough about. Ordered some new soldering stuff and will be here in 2 days. I’ll post pics of the finished product this weekend when I wrap it up.
Hope that was helpful 👍🏼
2023 GRC CE, 2007 Sierra 3500 LBZ DRW 4x4, 1988 4Runner SR5 3.4 swapped
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192 Posts
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376 Posts
I've never really had a dyslexic moment in my life, but I sure as hell read your license plate as "Real Spicy".
You’re a saint. Thanks man. Got mine in the mail yesterday.
2023 GR Corolla Core Black | 2004 Toyota Tacoma Double Cab 4x4
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93 Posts
I guess I'm adding this one to the list! Thanks for the great write-up. Is everyone using the ebay lights or did someone find another source?
I found a few links on amazon for sequential LED replacements for the 22 HB corolla. I just need to know if theyre the same fit
2023 GR Corolla Core Black | 2004 Toyota Tacoma Double Cab 4x4
Joined
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93 Posts
link me, I'll be the guinea pig
Sequential for 22-23' just realized its not for the HB but the sedan.
I messaged the sellars from ebay to see if theres a rear sequential option yet.
edit: ebay seller does not have sequential option for gr corolla rear LED reflector.
I found this, for GR yaris rear reflector that is sequential.
2023 GR Corolla Core/2003 Celica GTS/ 2010 Gen Coupe 3.8 R-Spec
Joined
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74 Posts
If I can
Light to car
Black to black
No red connection
Blue to white?
If I wanted them to run ONLY when brake pedal is pressed. Any idea how I would wire that? Would it be
Light to car
Black to black
No red connection
Blue to white?
it would be fairly easy to test, i dont recall if its the red or the blue wire on the car side. you have a 50/50 shot of choosing the correct option
its either the red to red or the white to blue. I actually have mine setup this way now as one of my lights, the running tailight died, so i just made them brake only.
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170 Posts
The factory wiring uses Red for brakes, Blue for running lights, Black for Ground (and I think Yellow for turn). The aftermarket LED-reflectors use Red for brakes, White for running lights, Black for Ground.
I wired up my set only to the brakelight circuit for maximum contrast at night. I pulled out the carpet trim in the hatch area just enough to access the back side of the taillight harness and tapped into it there, that way all of my splices are on the inside and not exposed to the elements. I ran the new wires through the two large grommets on the rear wall behind the license plate. I used a Deutsch connector so I can easily disconnect the mod if I decide it's too much.
Here's a brake test at night, pardon the messy garage.
![Image]()
I wired up my set only to the brakelight circuit for maximum contrast at night. I pulled out the carpet trim in the hatch area just enough to access the back side of the taillight harness and tapped into it there, that way all of my splices are on the inside and not exposed to the elements. I ran the new wires through the two large grommets on the rear wall behind the license plate. I used a Deutsch connector so I can easily disconnect the mod if I decide it's too much.
Here's a brake test at night, pardon the messy garage.
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376 Posts
FYI, these are now available on Amazon at the direct link below. No affiliation. I just ordered a set.
[Edit 01/17/24 - I ended up sending the lights I purchased in the link below back for a refund. Feedback below states they burn out after a short time.]
[Edit 01/17/24 - I ended up sending the lights I purchased in the link below back for a refund. Feedback below states they burn out after a short time.]
Amazon.com: iJDMTOY OEM-Spec Red Lens 48-SMD Full LED Rear Bumper Reflector Light Trims Compatible with 2023-up Toyota GR Corolla (E210), Function as Tail or Rear Fog Lights : Automotive
Buy iJDMTOY OEM-Spec Red Lens 48-SMD Full LED Rear Bumper Reflector Light Trims Compatible with 2023-up Toyota GR Corolla (E210), Function as Tail or Rear Fog Lights: Tail Light Assemblies - Amazon.com âś“ FREE DELIVERY possible on eligible purchases
www.amazon.com
really hoping a high quality one comes out, these ijdmtoy ones only last a few months before burning out. 
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170 Posts
Are you seeing total failure or just the loss of the parking light level?
so far mine are just the one side parking lights, i have seen at least one other guy where his one side was out as well, but im not sure how he wired them up. for now, mine are working fine as brakes only.
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390 Posts
Thank you so much for these instructions. Definitely will come in handy once and if I get a 24 GRC CIrcuit Blue Flame...
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