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Discussion Starter · #1 ·
GM Authority did a thorough breakdown of the different lighting options that are available with the Trailblazer.

I wish LED lighting was standard in vehicle nowadays, so that's a bit disappointing. But LED lights are available with the optional Technology Package, which comes with Chevrolet Infotainment 3 Plus system, HD radio SiriusXM with 360 Bose premium seven-speaker system, Memory card receptacle, Wireless phone projection, Wireless Charging, Adaptive Cruise Control, HD Rear Vision Camera, Enhanced 4.2-inch diagonal multi-color display, and Driver Information Center

Here's what's available for the front lighting:

2021 Chevrolet Trailblazer Front Lighting
LLSLTACTIVRS
Signature LED Daytime Running LampsSSSSS
Halogen HeadlampsSSSSS
LED HeadlampsN/AN/AN/AA1A1A1
LED Fog Lamps:N/AN/ASSS

As for the lighting, let’s start in front, where we find three individual elements – daytime running lamps, headlamps, and fog lamps. Both halogen and LED elements are on offer here, with halogen headlamps offered as standard across the lineup, and LED headlamps offered higher in the range in conjunction with the optional Technology Package (RPO code CWN). Signature LED daytime running lamps are also standard across the range, while LED fog lamps are standard higher in the range.

Here's what's available for rear lighting:

Finally, in back, the 2021 Chevrolet Trailblazer is equipped with either halogen tail lamps, or LED tail lamps, with standard outfit determined by the trim level:

2021 Chevrolet Trailblazer Rear Lighting
LLSLTACTIVRS
Halogen tail lampsSSSN/AN/A
LED tail lampsN/AN/AN/ASS
 

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I wish mine did not have the optional LED low beam headlights, because the cut off is so low and sharp that on a dark road and someone is walking on the shoulder you really only see them from the knees down and also it seems the standard green street signs are not lit up until your almost past them. Not to mention always getting flashed by oncoming traffic. I am not sure if the poor light output is from the LEDs or the projector headlights. But either way I wish they were still halogen reflector headlights.
 

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I wish mine did not have the optional LED low beam headlights, because the cut off is so low and sharp that on a dark road and someone is walking on the shoulder you really only see them from the knees down and also it seems the standard green street signs are not lit up until your almost past them. Not to mention always getting flashed by oncoming traffic. I am not sure if the poor light output is from the LEDs or the projector headlights. But either way I wish they were still halogen reflector headlights.
I have a FWD RS. Have you noticed an aim issue or dark spots in the beam?

 

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2021Trailblazer RS AWD Scarlet Red Metallic
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The little triangles in the light are normal.
 

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2021 TB Zues Bronze Activ
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I wish they put ore lighting IN the TB. At night when it is dark, getting into the TB is a bit dark in there. Hell my 72 Skylark has floor lights front and back.
 

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I wish mine did not have the optional LED low beam headlights, because the cut off is so low and sharp that on a dark road and someone is walking on the shoulder you really only see them from the knees down and also it seems the standard green street signs are not lit up until your almost past them. Not to mention always getting flashed by oncoming traffic. I am not sure if the poor light output is from the LEDs or the projector headlights. But either way I wish they were still halogen reflector headlights.
I will gladly swap you my Halogen bulbs from my RS for your LED bulbs - just let me know
 

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I will gladly swap you my Halogen bulbs from my RS for your LED bulbs - just let me know
I would like to say yes, but have to say no because I previously inquired with the parts manager at the dealership and they said it can't be done, because of different headlamp housings. Even the pictures in the owners manual on pages 267 and 268 show different housings. Even if they did swap I probably would not be any further ahead because I would still be stuck with projector head lamps.

Sorry,
Dale
 

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I would like to say yes, but have to say no because I previously inquired with the parts manager at the dealership and they said it can't be done, because of different headlamp housings. Even the pictures in the owners manual on pages 267 and 268 show different housings. Even if they did swap I probably would not be any further ahead because I would still be stuck with projector head lamps.

Sorry,
Dale
Ok,j ust sayin"
 

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I had LEDs in my 2013 Spark, put them on my wife's car too. I had to do the same with this one. I didnt like the two different color temp of lights either. Got the Cougar Motor X set for $55 on Amazon.
 

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I am going to replace the halogens on my 2021 Trailblazer, which cougar set did you buy that worked?


Cougar Motor X-Small 9005 + H11 LED Bulb, Combo (2 Sets) 6500K All-in-One Conversion Kit - Cool White - Replacement Bulbs, Low Fog Light

Or
Cougar Motor LED Bulbs All-in-One Conversion Kit - H11 (H8, H9) -6000K Cool White, Halogen Replacement, Quick Installation Low Fog Light and then the 9005 this size as well
 

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I am going to replace the halogens on my 2021 Trailblazer, which cougar set did you buy that worked?


Cougar Motor X-Small 9005 + H11 LED Bulb, Combo (2 Sets) 6500K All-in-One Conversion Kit - Cool White - Replacement Bulbs, Low Fog Light

Or
Cougar Motor LED Bulbs All-in-One Conversion Kit - H11 (H8, H9) -6000K Cool White, Halogen Replacement, Quick Installation Low Fog Light and then the 9005 this size as well
I bought the X-Small 9005/X11 combo it was around $60 on Amazon before using the 15% off coupon on the page.

 
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