SERVICE AIR SUSPENSION????????

[Andre]

From the search I have done some of the guys that had this problem their truck's ass was sitting on the ground... well my truck tells me I need a service but it's still sitting fine...any ideas? anything I can check cause I am 6 hours from the dealer.

[Andre]

Thanks for the reply...i will try that.

[Andre]

thanks for all the replys...one other question i have..the "service air suspension" does not always come on or lately if it does it goes out right away and the air lift still works... anybody else have this happen?

[Andre]

From the search I have done some of the guys that had this problem their truck's ass was sitting on the ground... well my truck tells me I need a service but it's still sitting fine...any ideas? anything I can check cause I am 6 hours from the dealer.

[Dug]

Yes , thanks i read that. But I think it should stay in in case i want to spin the tires 40mph . Is it possible to make that happen?

[hummerNCO]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Dug3x3:
And what really pissed me off is the locking rearend comes out at 20mph. WTF! Does anyone know how to make the rear locker stay in at unlimited speed? </div></BLOCKQUOTE>

The locker is not supposed to stay engaged at speeds above 20 MPH.

When I purchased my truck it came with a handy little yellow book that described its attributes and features. You can find a copy of it here:

details

"The locking rear axle will be disabled when the
vehicle’s wheel speed is greater than 20 mph (32 km/h),
if the vehicle’s battery is low and/or the transfer case is
shifted out of 4LO Lock."

[LasVegas]

If you have a way to read/clear DTC codes, check & see if you have a code & clear it. If not, try disconnecting the battery & then reconnect. If neither work, it's off to the dealer.

[xonxoff]

http://elcova.com/groupee/forums/a/t...7/r/5361002411
Klaus posted this a while back. Might be of some intrest

[Dug]

Andre- My service air susp. read out came on this weekend . To make a long story short I got stuck this weekend getting into camp . Trying to jump a snowbank at the end of a plowed road. I beat the snot out of the hummer and the snowbank for about 1/2 a day. Anyways the air suspension light was on all day, after all the packed snow came out of the rear end the reading went away.(maybe you have some mud caked in or a stick?? that needs to be cleaned out??) . Also the traction control for the front that light came on with a cross thru it , i think that isnt working now. And what really pissed me off is the locking rearend comes out at 20mph. WTF! Does anyone know how to make the rear locker stay in at unlimited speed?