2016 GMC sierra electrical issues

Asked by Doug Aug 14, 2024 at 01:50 PM about the 2016 GMC Sierra 1500 SLE

Question type: Maintenance & Repair

2016 gmc sierra occasionally won't start and all dash displays are blank after a
few minutes truck will start but all systems are out of calibration [clock radio
compass temperature electric trailer brake ] and then it tells me to open and
close drivers window

1 Answer
310,015

Gene answered 2 months ago

The rig is experiencing a major power loss, could be a battery, cables, power distribution box, any number of grounds. I suggest you find a good independent shop and have them check it out, cause if this keeps up you will possibly loose all programming and that can result in at least a reflash if not total replacement of ECM the BCM and a number of control modules.

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