Hummer H3 For the Hummer driver who wants the rugged look and off road capabilities of the Hummer, but in a smaller size and with a more fuel economy friendly engine.

Hummer H3 2009

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Old Jul 24, 2023 | 04:17 PM
  #1  
flowergirl129's Avatar
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Default Hummer H3 2009

I have a new rear view mirror & it doesn't have the guidelines when I back up. My old mirror had the lines. How do you program them??
 
Old Jul 25, 2023 | 12:51 PM
  #2  
Doc Olds's Avatar
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From: Boat Town USA MI
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Welcome. Your question is NOT an FAQ and should NOT have been posted there.

Get a different mirror, like an H3 specific one. You could try turning it off, then back on again per the owner's manual???? Perhaps it is a setting in the head unit, not the mirror.

Take it back to whoever was overpaid to installed it?

Good luck.
 
Old Jul 26, 2023 | 06:27 PM
  #3  
Revmatch's Avatar
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Joined: Jan 2023
Posts: 19
From: Indianapolis
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Originally Posted by Doc Olds
Welcome. Your question is NOT an FAQ and should NOT have been posted there.

Get a different mirror, like an H3 specific one. You could try turning it off, then back on again per the owner's manual???? Perhaps it is a setting in the head unit, not the mirror.

Take it back to whoever was overpaid to installed it?

Good luck.
really Doc?
 
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