May 1, service stabilitrak system message came on, traction control light came on, vehicle stopped on own. Able to drive about 20 feet before it stopped again. This repeated about 20 times. The brakes engaged all 4 wheels without pressing the pedal each time. After restarting vehicle it works fine. May 2 going 65 mph on I-275, the lights came back on and the brakes engaged without notice. My wife was able to get off the road (lucky). It was like she slammed on the brakes on a slick road (without using the pedal). Dealer could not locate reason, called GM tech assit and they found a bad connection with the wiring harness. Got van back May 3. May 11 lights back on and kept engaging brakes in driveway. Dealer found another suspect connection with GM tech assist and gave us the van back. June 5 lights back on until getting gas. June 8 lights back on, onstar ran diags and reported anti-lock brake issue. Lights stayed off after restarting van. Each time we turn off the van and then restart it, it seems fine. June 9 lights back on, onstar found same error reported. June 10 lights back on. On way to dealer the brakes failed to engange just yards from dealer and wife went through stop sign. Service advisor tried 4 times to stop van driving it to the stall. Dealer found tire going flat while in stall. Dealer found 17 codes stored showing low voltage. With GM tech assist dealer claims to have found yet another bad connection. Gave van back after only 4 hours. June 12 lights back on. June 13 took it to selling dealer (45 miles away). Dealer still has van (2 weeks later-June 27) claims engineer came down, could not find problem but suggested replacing BCM (17 codes again). They are replacing the computer hoping it is the cause. We dont want the van back and asking for a replacement under the lemon law and the fact that it fails to stop if a tire is low on air. Replaced radio and mouldings. Had brake failure, sliding door failure, and more. I would not buy another Uplander.

- Burlington, KY, USA