I just bought a 2003 buick lesabre custom and it would drive fine for a couple of miles and would shut off in the middle of driving
Sounds like a bad battery.
Need to find out the code. Too many things it can be.It can be your gauges need to be replaced. The BCM circuit board on the gauges might be back. The security system goes through it. That would shut down the car. When you find out please let us know.
Did u ever find out
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