About 30 minutes ago, while driving, I noticed the dash lights would switch back and forth from dim to full day time bright. Once at my destination. I attempted to use my key fob and it didn't work. And neither did the lock button on the doors.

Further investigation:
I also didn't have A/C, turn signals, fog lights, washer fluid pump, rear defroster, wipers (only worked at max speed), dash indicator lights, outside temp, or high beams.

Headlights, all windows, moonroof, bluetooth, gauge cluster, and climate control all work.

All fuses are intact and no check engine light. Anyone hear of this or know a place to start trouble shooting?

 

2007 tsx

 

Alternator? Battery? Your car seems a bit new for those issues but you never know. Checked all the fuses under the hood and in the car? Not sure what else could cause that...

 

there could be a weak cell in your battery. Try replacing it.

 

I'd check battery and alternator.

My old acura legend had similar issues when the battery was close to dying. It was a combination of the car charging system not working correctly and killing the battery. It would create enough juice to not engage the battery light.

I had to replace the battery and the alternator.