Canadian Hummer Club Forums

Hey LD<DIV> </DIV><DIV>I've read somewhere about this problem, but I'm not exactly sure where, I think It's just the sensor/ relay switch on your TC that activates your actuator that Is faulty, or even a bad connection and It's nothing Mechanical... Let's Hope!!!</DIV><DIV> </DIV><DIV>Good Luck at the Stealership</DIV>

Hi Duece,



Here is a little known fact, when you operate the vehicle in 4 high lock mode, in order to properly disengage it from this mode or any other 4 wheel drive mode back to normal operating 4 high mode, you need to back the vehicle up for about 15 to 20 feet and then engage it into 4 high mode. I know, it does not say this anywhere very clearly, but this is what is needed to be done.



Cheers.

I find that with all of the electronics in modern vehicles, simply turning them off and turning them back on will fix a lot of problems.  Sort of like restarting Windows every couple weeks. <img src='http://www.canadianhummerclub.com/forum ... /smile.gif' class='bbc_emoticon' alt=':)' /> I had the Service Air Suspension message appear last month but just turned off the vehicle, then turned it back on, and the problem disappeared.  Good to hear your problem is resolved.  If it begins to crop up again, I would agree with the others that it is either a sensor or an actuator problem.  I know a couple H2 owners that have had problems with the transfer case actuator and because of them, have a how-to guide on how to manually shift the transfer case into different modes if you have to.  (It basically involves opening up the back of the transfer case on the trail and using a wrench or vice-grips to manually switch the transfer case in the event of actuator failure.)