about once per year the memory recall for seat position, radio settings, HVAC settings, and seat heaters stop working. You can still move the seats with the switches but the auto feature doesn't work. The seat heaters also stop working. Then, about once per year it starts working again. Goes about 6-9 months without working, then starts working again for a couple of months. Any ideas?
I have a 2004 Chev trailblazer. The worst item is the memory seats and settings for 2 drivers and seat heaters. They intermittently work at best. I never know when I get in the car. Seems they work about once a year then stop working for months at a time. Also the 4WD stops working--about once a year. Usually stops for a couple of days then starts working again. The On Star people said it is a sensor that can't sense. It then defaults to 2WD.
I have 187,000 miles now. Just had(2013) to replace the A/C compressor. In (2012) I had to replace and ignition coil. 2012 replaced front upper and lower ball joints in the front suspension.
Not bad if compare repair costs vs new car payments.