Terrible App – myGMC Review

Terrible App and Website is even worse. Terribly confusing between MyGMC and OnStar. Took me nearly 30 minutes to find the information I was looking for, and to find out I have to pay an extra $10 a month just to get my vehicle diagnostics. Deleted this app before and I will be deleting it again.
Review by rurugby12 on myGMC.

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