08 H2 service 4×4, stabilitrak, traction. Remote start not working
Senior Member
Joined: Jan 2024
Posts: 278
From: Katy Texas
This may include everything from general transmission performance problems to the vehicle refusing to shift out of a specific gear or even just an illuminated check engine light that won't seem to go away.
Thread Starter
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Member
Joined: Dec 2023
Posts: 61
From: Florida (pregrave yard) going back to My house in NH
After 1 month & 2 weeks....
A moment later....
I told the shop I would like My Hummer back, because it still drives normally but when I get back up North I would like to have all the 4×4 options. And stop ✋️ the Christmas lights on My damn dash.
Any good electrical specialist shops near mid Florida?
I told the shop I would like My Hummer back, because it still drives normally but when I get back up North I would like to have all the 4×4 options. And stop ✋️ the Christmas lights on My damn dash.
Any good electrical specialist shops near mid Florida?
Senior Member
Joined: Apr 2019
Posts: 854
From: Albuquerque NM
Electrical Gremlins, difficult to find and ever harder to kill!
U0101 is almost a catch all code for the 6L80 (and others) but is usually combined with another code if there is a specific problem with the 6L80. BUT! Loss of communication combined with the crazy dash light raise the flag of connection, grounds and power issues especially when you say the truck drives fine.
In all honestly and based on my past experience I seriously doubt you have a trans issue and almost 1/2 of the current H2 issues are because of poor power or ground connections. It is so unfortunate there are no real H2 mechanics around anymore and few repair shops have Tech 2's.
If I might suggest call around to a couple of the Cadillac dealers and ask them if by chance they still have one.
The H2 is not all that complicated especially when compared to these new electronic POS's made today and a good H2 mechanic from the 2000 years would probably have the issued with your H2 isolated in under an hour. Unfortunately that doesn't help much. Best of luck with it and I hope you get it nailed down soon.
In all honestly and based on my past experience I seriously doubt you have a trans issue and almost 1/2 of the current H2 issues are because of poor power or ground connections. It is so unfortunate there are no real H2 mechanics around anymore and few repair shops have Tech 2's.
If I might suggest call around to a couple of the Cadillac dealers and ask them if by chance they still have one.
The H2 is not all that complicated especially when compared to these new electronic POS's made today and a good H2 mechanic from the 2000 years would probably have the issued with your H2 isolated in under an hour. Unfortunately that doesn't help much. Best of luck with it and I hope you get it nailed down soon.
Thread Starter
|
Member
Joined: Dec 2023
Posts: 61
From: Florida (pregrave yard) going back to My house in NH
Any response is truly appreciated 🙏
U0101 is almost a catch all code for the 6L80 (and others) but is usually combined with another code if there is a specific problem with the 6L80. BUT! Loss of communication combined with the crazy dash light raise the flag of connection, grounds and power issues especially when you say the truck drives fine.
In all honestly and based on my past experience I seriously doubt you have a trans issue and almost 1/2 of the current H2 issues are because of poor power or ground connections. It is so unfortunate there are no real H2 mechanics around anymore and few repair shops have Tech 2's.
If I might suggest call around to a couple of the Cadillac dealers and ask them if by chance they still have one.
The H2 is not all that complicated especially when compared to these new electronic POS's made today and a good H2 mechanic from the 2000 years would probably have the issued with your H2 isolated in under an hour. Unfortunately that doesn't help much. Best of luck with it and I hope you get it nailed down soon.
In all honestly and based on my past experience I seriously doubt you have a trans issue and almost 1/2 of the current H2 issues are because of poor power or ground connections. It is so unfortunate there are no real H2 mechanics around anymore and few repair shops have Tech 2's.
If I might suggest call around to a couple of the Cadillac dealers and ask them if by chance they still have one.
The H2 is not all that complicated especially when compared to these new electronic POS's made today and a good H2 mechanic from the 2000 years would probably have the issued with your H2 isolated in under an hour. Unfortunately that doesn't help much. Best of luck with it and I hope you get it nailed down soon.
buh bye 👋
Always stocked up! 
