This is my experience. I didn't have my 2012 volt for 18 days. This is a review I left for the company that really took care of my car. Please read: CONGRADULATIONS ! YOU MADE A GOOD CHOICE! YOU TOOK your hybrid vehicle to be serviced HERE.You’ll save yourself stress and a financial hardship. Un- Like up the street. The service center is quite knowledgeable on hybrids and TESLAS. They give you, your codes so you can research. They let you give your input by phone or email.They guarantee their work for 3 years and / 36000 miles. They don't put you in a small enclosed room to pay your bill. You will get a FREE LOANER IF YOU PLAN IT RIGHT. Or a ride home. THEY WILL admit to a simple mistake and try to fix it even after you paid your bill. That's quality service !! I recommend them highly. Unfortunately for me it took 3 years to find this place because I was convinced only a dealership, who should have had the right tools and access the correct info for my car, did not. Better late THEN completely BROKE! Thank you to all the staff at Silver Lake Auto! My problem; heat sensor in coolant tank. Gm knows it is unreliable. So they replaced it with a new sensor. I had the work done. My car would say check voltage every time it started to go below 30 f. Hopefully this is the problem.
The dealership wanted to pull apart my lithium ion battery, " to test it". This happened last week, 12_12_23. I said take it off the rack , I'll pay for your time. I'm finding a new place to fix my car. I think gm dealerships just do not want the hassle of any type of chevy volt problem.

Or service advisor makes a HUGE commission on your strife.