Hi thanks Scotty. We have an 07 toyota tundra 4.7 engine. 143k. Great truck. Yesterday my speedometer stopped and my brake,ABS,and check engine lights came on. Also voltmeter is fluctuating a notch or 2 down and back up. Running fine otherwise. Suggestions? Thank u. Matt.

well, have the battery and alternator load tested first. Auto zones do that free, and it could be that simple