Quote:
Originally Posted by DangerZL1
You might find a search gives you some ideas into things to look at. There have been other's who've had failed batteries, but it may take some pressuring of the service department to get them to pursue it. It isn't easy to track this kind of problem down, but there does appear to be something out of the ordinary.
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There is nothing for service to look at. There are many threads here and was found that the onstar unit is sending out and receiving info several times a day. The proximity system for the keys must also always remain active to detect a key. New cars with wifi and keyless systems all brands drain. We have a designated person that charges cars every morning on the lot for that very problem.