So yesterday it hit 95-96o here in Colorado, and as I was pulling in to a parking lot my AC blower speed suddenly increased and the volt gauge jumped up to 15, and the "Check Gauges" indicator lit up. I shut the engine down and tried restarting it, thinking maybe it was a one-off glitch but the voltage issue remained. I didn't have a voltmeter with me so I let the engine cool off a bit...and that seems to have done the trick. I made the drive home without any other indicators lighting up, and the volt gauge hasn't risen much above 14 yesterday or today.
Anyone had something like this happen before? I checked the battery connections, ground, fuses, etc. Nothing seems to be amiss but I'd rather try to catch it now instead of sitting on the side of the Interstate.