My 2008 H3 hummer was driving fine no slipping now it won't go into reverse. Drive and low still work fine. What do I do to fix this help please

SOURCE: 2006 H3 Hummer AC/Heater Fan Motor

I brought my 2006 H3 in to the dealer for the same thing. My blower stopped working all together but it started as an intermittent problem. He said he had to replaced a diode or resistor either behind the switch on the dash that controls the fan or on the fan motor itself. Have not had a problem since but that was only about 4 months ago.

SOURCE: BRAKE SYSTEM FAILURE

well what could of happend they probably put the battery on backwards and blew out a fusible link.The links run thru the wires by the battery and behind the alternator check it out Good Luck keep me posted

SOURCE: 06 hummer h3-water on passenger floor after a rain

Hey I have the same problem, but only when it rains, it comes from the sunroof then leaks into the carpet.

SOURCE: 2008 Hummer H3 The trackion failed light on

clean abs sensors at each wheel.

SOURCE: My 2006 Hummer H3 is not coming out of 4wd lock

My 2006 Hummer H3 is not coming out of lock position. Indicator light says its in the normal 4 wheel drive but it doesn't feel like that when i am making a hard turn. I tried driving in reverse as well as letting it sit in the garage overnight. What is prob?