The dealer doesn't control which cars get replacements when - that's up to GM and they do it based on their assessment of risk.My '20 is getting battery replaced in mid Dec. according to my dealer ...
I'm not sure what order they'll proceed in once the known high risk cars are dealt with, but it makes sense to me that they'd go from oldest to newest. I say this for two reasons:
- Older cars mean more cycles on the battery and that means any issues with the cells are likely to be closer to the critical point.
- Replacing the batteries on newer cars later is in some sense more beneficial to the customers. It's a bigger benefit to get a brand new battery after 50,000 miles of use on the old one than it is after 30,000 miles of use.