Is there a known electrical issue with the HHR? The locks mess up, dash lights randomly on/off, small buzz at the same time through speakers. This is completely random and my mechanic cannot get it to repeat. I thought it was because I had an aftermarket radio unit professionally installed, but that was a year ago and these are more recent. No codes either.

 

 

Battery has tested fine. I will check fuse box and for loose connections when I get home this evening. I like the blue/red contrast of your HHR! Steel wheels have never looked so good.

 

 

Update: I did exactly what the video donbrew posted showed. I didn't see anything that was loose or anything that looked damaged. I haven't had any issues since, but I have gone awhile without it happening before, only time will tell. Thanks.

 

How old is the battery and what's it brand name ?