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2016 Yukon Denali Electrical Problems

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Vehicle has lost battery power a few times over night the last few weeks.  Known by having to reset clock and recalibrate windows up and down. I have never had to charge the battery. Starts right up.  Today when turning tight,  I would lose power steering for a moment and the gauges would flick off and back on followed by a service stabilitrack message.  Is this a battery or a ground issue? 

Edited by Westernstar23
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Checking the cables for intermittent voltage issues is always a good idea.


Check all the grounds, something could be loosing continuity, just so happens you were driving when it happened. 


Look at circuits and grounds for interior - instrument cluster, clock. There is likely another code related to steering sensor, it lost power/ground too and triggered the power steering issue and service stabilitrack.

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