Ghostrider
5/4/2008 7:53:36 PM
I was out playing in the mud the other night and my SERV 4X4 message came on. I called onstar and they said it was a transmission failure and to take it in within the next 7 days.
Today I was out trying to see what was causing it because it seemed to drive fine still. I eventually discovered that the 4-LO button was stuck pressed in. There must be a little sand or something behind it from the dunes but once I got it popped back out, everything was fine.
Just an FYI if you get the message, start at the switch and work your way through the system.
rhill20
5/4/2008 8:19:27 PM
Good to hear it wasn't something bad. Good info, thanks!
Hummer Guy
5/4/2008 8:36:29 PM
were you in four low that whole time?
3hummers
5/4/2008 10:16:24 PM
If you were in 4 lo the entire time you may have problems you don't know about yet or may have shortened the life of several of 4x4 system.
RealJeep
5/5/2008 6:31:21 AM
Just goes to prove what I have always said.
"There's beauty in simplicity"
HUMMERs should have shift levers, not sissy push buttons!
Ghostrider
5/5/2008 8:26:02 PM
Oops..my mistake... 4-HI... the normal driving mode button was stuck in.
671H3
5/6/2008 2:46:15 AM
I had the same problem with my H3 and my Wife's H3. We took it to the dealer and they said the traction control module malfunctioned. They replaced it with a new one and now its been working fine.
IHNEVELS
5/6/2008 7:14:03 AM
Mine did the same thing and they had to change out the switches. No big deal
Doc Olds
5/6/2008 9:46:27 AM
Gotta love dem switches.

Give me a manly lever I say, with cheese, well done!
celtichummer
5/6/2008 1:12:21 PM
same thing happened to me after a day in the dunes