One problem related to battery dead has been reported for the 2015 gmc sierra 1500.
Gmc sierra battery drain.
One by one pull each fuse in your fuse box.
Battery drain parasitic drain issue.
The trucks may have connectors.
To isolate the source of the battery drain connect an ammeter to the positive red battery cable observe the current drain likely less than 1 amp then one at a time remove each fuse check to see if the current drain has dropped to near 0 then reinsert the fuse.
Please also check out the statistics and reliability analysis of the 2015 gmc sierra 1500 based on all problems reported for the 2015 sierra 1500.
The problem stems from an electrical connection with the alternator.
Excuse me for not searching the forum but here are my details.
With key off unhook your positive battery terminal.
Put one multimeter lead on the battery terminal and the other on the positive cable.
2014 chevrolet silverado 1500 4wd cheyenne sierra silverado 1500 service manual 5565479 document id.
The recall involves certain 2019 2020 chevrolet silverado 1500 and gmc sierra 1500 models.
This process should identify the faulty circuit in most cases.
Chevy truck forum silverado sierra gmc truck forums.
Diagnostic instructions perform the diagnostic system check vehicle prior to using this diagnostic procedure.
You re basically making the multimeter part of the circuit.
2904767 battery electrical drain parasitic load test 12 v battery the following procedure is for the 12 v battery only.
Gmc sierra 2500 hd 2013 performance series battery odp agm48 h6 l3 by odyssey.
Set the meter to read amps.
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