Hi:
Consider a Lemon Law buy back after off the road that much. I had approximately the same lost usage for two service issues for the vehicle not being able to fast charge due to battery coolant leaking into front motor transmission. Getting full price refunded less $1,679 for mileage at time of second service for same issue. Depends on your local state law or whether Federal law applies best to your situation. Waiting for a closing and a check. GMC pays your attorney. I will buy a 2025. Love the damn thing.

 

It sounds to me like battery technology and repair facilities have far to go before ev’s can run as imagined.
Just last week a salesman explained to me how easily a battery module is swapped out in case of failure.
Thank you for shedding some light on this!

 

Don't mean to be a downer, but I'm in my 6th week of waiting for a new battery and get it replaced. I'd only had my 2x for two months. The battery is in (or so I've been told) and they are installing it (I guess). Probably going to take the rest of the week before I get it back. Let's hope we both get our Hummers back soon and that's the last of our problems! Good luck!

 

Has the battery been on order for 6 weeks or did it take 6 weeks for them to bother to diagnose it and get a requisition for one? They'd been getting them to dealers in 72 hours (GM doesn't want lemons or buybacks but it feels like dealers couldn't care less if you do) but only if the dealer is proactive in getting it diagnosed and ordering a $45k part. It took almost constant hounding to get the dealer that swapped mine to just get started on it. It's supposed to take a day max to swap (dealers that have done it before can get it done in a few hours) but it took 2 weeks from getting mine in to just get started, then it took 3 full days to do the swap, then 4 days of chasing issues caused by a low 12v and 2 days to find out their charge's breaker wasn't on.

FWIW, even with the dealer dragging it out and seemingly only working on it when they had some free time, mine to 28 days from error to new battery and it's been trouble free ever since. It increasingly feels like this is a QC issue with cells. The vast majority of cells are fine but every once in a while a bad one makes it into a pack. The thing is they planned for this. Dealers were supposed to be able to drop a pack, open it up, replace the offending module, seal it back up, and get you back on the road...but that program was never implemented (and they've had 3 years to get it in place) but instead they're just replacing whole packs as they need. So now you have them shipping 3300lb packs to dealers everywhere instead of 80lb modules. I have no doubt its a logistical nightmare.

 

Yep. Out of service 33 days.

 

Yeah, after a year and 13k miles, but it was weird about charging since the start. Haven’t had an issue since replacement. Just be glad you didn’t end up stranded hundreds of miles from home 2 or 3 times before getting a new one. I can’t think of anyone that’s gotten the service high voltage system error since replacement.