reverse lights stay on

2005 GMC SIERRA
300,000 MILES • 4.8L • V8 • 2WD • AUTOMATIC
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ENDZONE
  • MEMBER
  • 1 POST
While in drive the reverse lights are still on & stay on most the time. Also every time I make a right turn, my brights come on when I hit the right blinker on.
Oct 28, 2018 at 1:22 AM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
Hello,

This sounds like a BCM problem which tries these systems together. Here is the location of the unit and how the reverse lights are wired so you can see how they work. I would try a used one and plug it in, you may need to get it programmed to the truck it should cost about $120.00.

Check out the diagrams (below). Please let us know what happens.

Cheers, Ken
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Oct 29, 2018 at 10:19 AM
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