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Discussion Starter #1
I've noticed lately that cars on my right side are not triggering the blind spot assist. Left side works correctly and both mirror lights come on at startup momentarily for the lamp check. I also don't have any error messages popping up like shown in the owner's manual for this kind of thing.

Bumper is clean and there is no damage. Anyone else have this issue and find a simple fix? I'll take to the dealer if I can't sort it out soon.
 

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How are you 'testing' to see if the right side is not working and at what speed. Are you letting a vehicle come from behind or are you passing them?
 

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Discussion Starter #3
Dealer confirmed it's not working, but no stored fault codes and no apparent damage to any components. We are hesitating to throw parts at it at this point without a clear diagnosis.
 
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