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.

2008 h3 alpha just stopped recording milage

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Old May 20, 2021 | 03:31 PM
  #11  
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Originally Posted by Cody Bashaw
yes it does, the original owner stated the drain plugs got clogged and the original bcm got damaged. So when they replaced it they said the original key fobs didn't work and neither did the odometer. Then they installed a viper alarm system for the key fob. So I was thinking maybe it was not programed properly?
Make sure the sunroof drains are not clogged so it does not happen again. Do the fix that is in the sticky thread at the top of the H3 section.
 
Old May 20, 2021 | 03:45 PM
  #12  
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Originally Posted by Doc Olds
I think you are onto something know that we know the clogged sunroof drains killed the original BCM.. I have not done it, but others have said you can plug and play a used BCM and it may work if from the same vehicle & year etc.... but if the used Vin had higher miles, the Odo won't change until they match miles.

Yep, used BCM.....
thank you for all the help, so should I order a new bcm? Or see if the reapir shop can reprogram the current bcm? I am also confused about what you're saying about the matching miles?
 
Old May 20, 2021 | 03:47 PM
  #13  
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Originally Posted by Broken Halo
Did you change the 'Crappy Azzed' battery terminals?
I believe they are the factory cables. Could that really cause this problem I'm having? I just figured it was bcm related since they told me they replaced it then noticed the odometer did not move after the fact.
 
Old May 20, 2021 | 04:46 PM
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Originally Posted by Cody Bashaw
thank you for all the help, so should I order a new bcm? Or see if the reapir shop can reprogram the current bcm? I am also confused about what you're saying about the matching miles?
How many miles on the odometer? How many miles on the donor bcm? They need to match for the odometer to operate!
 
Old May 20, 2021 | 04:56 PM
  #15  
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Originally Posted by hummerz
How many miles on the odometer? How many miles on the donor bcm? They need to match for the odometer to operate!
the odometer is at 84,140 the last car fax reported was 83,000 miles and it's clean car fax. I was told it was a brand new bcm that they installed, and after they did that the factory key fobs and the odometer stopped working. (I'm only going off what the seller told me) could have been a used bcm I am not sure
 
Old May 20, 2021 | 07:51 PM
  #16  
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a tech 2 scanner should be able to reprogram your existing bcm and fobs if all is in order.
 
Old May 20, 2021 | 08:31 PM
  #17  
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Originally Posted by Cody Bashaw
the odometer is at 84,140 the last car fax reported was 83,000 miles and it's clean car fax. I was told it was a brand new bcm that they installed, and after they did that the factory key fobs and the odometer stopped working. (I'm only going off what the seller told me) could have been a used bcm I am not sure
Not new, Not Programmed. 25830695 discontinued.
CARDONE 73-2495 Remanufactured; Plug & Play - No Programming Required
 
Old May 20, 2021 | 09:19 PM
  #18  
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Originally Posted by hummerz
Not new, Not Programmed. 25830695 discontinued.
CARDONE 73-2495 Remanufactured; Plug & Play - No Programming Required
so you're saying the CARDONE 73-2495 will replace the factory bcm with no programing required? It's a direct replacement?
 
Old May 20, 2021 | 09:42 PM
  #19  
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Old May 20, 2021 | 10:30 PM
  #20  
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Originally Posted by hummerz
sorry I don't understand what you're saying. Don't see why you're giving me a hard time.
 



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