My electrical system has been going haywire ever since I got the van. The lights have been going on and off by themselves, the power sliding door pops back open when closing.
The ABS/Traction Control system went bad. Whenever traction control is engaged, the van jerks intermittently like the brakes are engaging and disengaging randomly. Turn traction control off and the van runs fine.
At 57,000 miles (right now) the head gasket blew and is going to cost $900 to fix, and that's because I know the guy who's going to fix it.
Stay AWAY!!! This van has had more problems than any vehicle I have ever owned.
The problem with the power door popping up again when closing might be solved by brushing off the pins and the contact surfaces at the lower front part of the door and the bottom of the "door post" (B-pillar).
I live in Sweden and bought my Montana in 1999. After 53000 kilometers and 2 months after the warranty went out all four brake rotors (discs?) went wavy. I replaced the front rotors in September and they had to be replaced again less than 10000 kilometers later. GM quality?
I have also replaced both head-light reflectors since the glass came off the reflector.
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