2008 H3 Alpha with 182,000 miles on it. Same dealer that sold it to us in late 2007 new has always serviced (Cadillac now). Service 4WD message on DIC after a carwash about 6 months ago. Still have it now, even though we have had 19300596-SL-N-ACTUATOR (04563-CT) and a used transfer case encoder motor installed. Then had 12129418 and a used transfer case control module installed. The last visit they found an issue with connector X201 on the passenger side A-pillar and that there was water in it. They found the high frequency antenna leaking water causing this. Removed corrosion in the connector and sealed it. Carwash made the DIC message come-on again same day. Please give us some ideas on what can be considered at this time. Any 4WD shops that see a lot of Hummers in Indy area?
Thanks.

 

Possible issues with abs/wheelspeed sensors?

 

Sounds like the dealer has no diagnosis skills and is just throwing parts at it.

Get is scanned (one that reads ABS codes) and report the codes back to us. The ABS system will also throw 4WD Service on the DIC.

 

There was water in the A Pillar. Does it have a Sunroof? If so, has you passenger side floor been wet?

Sunroofs require maintenance. Finally, a fix for clogged sunroof drain tubes

 

🤣🥲😡😢 <- the stages of grief dealing with some dealers.