How to Determine the Correct T-One Wiring Harness For a 2021 Chevrolet Trailblazer
Published 11/23/2022
Question:
Which wiring harness # is compatible with my 2021 Chevy Trailblazer LS,1.2 engine. I noticed there are 2 different harnesses, one for regular lights and one for LED lights. My owners manual says there are both LED and regular bulbs in my vehicle. Very confusing. Thanks.
asked by: Walterwalt W
Expert Reply:
The correct harness is dependent on specifically the taillights in your 2021 Chevrolet Trailblazer.
If the taillights are LED's then you would use the T-One Vehicle Wiring Harness # TK26VR.
If your taillights are not LED's then you would use the T-One Vehicle Wiring Harness # TK39FR
Your Trailblazer will have both types of lighting, but the only one you need to be concerned with are the taillights specifically.
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