flashing

TL;DR - My dash and infotainment is flashing and freaking out. Upon purchase the battery was replaced. Ayo, I just purchased a 2011 Buick Regal at 106k miles. Love the car, however, upon driving it for sometime the dash and the infotainment screens are flashing and would sometimes turn off for...

First of all, I'm going to say that I have a Buick LaCrosse 05 CXL and not a LeSabre, but, I know that the ECU on the LeSabre is tunable/programmable, is there any reason the ECU on the 1st gen LaCrosse isn't?

I have a 1994 Buick Regal Custom with the 3.1 L V6 (L82), automatic. About 2 weeks ago while driving, the car just stalled/shut off. I got it started again and drove it a few more miles, where it died for good. I took it to the local mechanic who said that it needs a new computer, and that...

So... I spoke with a close friend which is also a Service Director of one of the largest GM dealerships in TX. I asked about tuning and a re-flash of the ECM, he direct comment was don't do it under warranty "no matter what!" He said that if you have any problems with the engine,tranny, turbo or...