I have 2015 cx-9. When driving it, the "tcs off" light and associated "swervie road" light come on at random and go on and off. The battery light does the same thing but slightly less often. More recently the AC dash board lights as well as the AC blowing has come on and off. All of it is not "flashing" but random (like think something is lose and jiggling around but it isn't associated with braking of accelerating or bumps as far as I can tell. Sometime it starts happening after driving for 5 mins sometimes after 15 min and never at idle. They turn off every time the car is turned off. The car drives fine.

Alternator was replaced before this problem began. The problem then started about 30 days after that.

Since the problem started the dealership lazy swapped the "tensioner" and another mechanic said he had no idea what to do.

So here I am. Any ideas? I would be so so thankful for any ideas.

I am still driving and don't want to end up on side of the road.

Thanks in advance.

 

Welcome to the forum

What were the DTC(s) that the dealership found?
Did they load test the battery?
Did they check the alternator and charging system?
Did they check all the battery connection at the battery and also the other end connected to the start and the chassis ground?