this isnt a recall but it might be one in the making. I own a 2006 envoy denali with 2700 miles on it. My wife took it to her parents house one weekend and came back and told me that the passlock light had come on but then had shut off again. It never did this while I drove it but a week later on christmas eve she went to she store and when she got back in the car the passlock light was on and nothing electronic would work, no windows, no radio, nothing. The car did start back up and she drove it home. when i went outside to look at it the passlock, airbags, abs and parking brake light stayed on. On monday morning i went out to take it to the dealership and it wouldnt start, so i had a tow truck come to tow it and when he jump started it, i guess it reset the computer because it started right up and the passlock light went away. After a day at the dealership, the said that they could not recreate the problem and gave the car back. Three days later, i was waiting the drive thru line when i heard a wierd noise and looked down and saw that the car was switching from 2wd to auto on its own. back to the shop and i got it back with nothing done. The shop foreman told me that the ticket was still open and they were going to contact gm technical services. ill post an update when i hear something back.