ScubaSco

There are currently 2 Class Action Lawsuits in progress relating to valve bodies. Just Google it. Also, what rental agency did you find who would allow towing, and a 1 ton truck?

With no Valve Bodies available, I was approved for a Transmission, which are also unavailable. A valve body showed up first and was installed last week. I've had a couple abnormal shifting incidents since. Just FYI, there are currently 2 Class Action Lawsuits pertaining to valve body problems in the 8 speed transmissions. Our 10 speed transmissions are now in the spotlight as well with the same problem. I'm not finding a Class Action as of today but there is evidence out there that a case is being built.

Perhaps it's time to start sending emails to the NHTSA and our State Attorney Generals offices until GM decides to step up, as this problem seems to be compounding quickly. The Service Manager at my dealership told me that 3 trucks came in with these same issues today alone. Another dealership in the Denver area told me yesterday that they currently have 15 valve bodies on backorder.

My 2023 Sierra 3500 with Duramax and 10spd transmission went into the shop for the 2nd time in less than 1 week. Truck has 24k miles. Being told now that Valve body is bad and needs replaced. Dealer says part on backorder with no ETA. They referred me to GM to ask for a full Transmission replacement. GM said they could not authorize that. Then was told by the dealer that the Tranny's are also on backorder as well with no ETA. I can't have my truck down as it is used for work daily and I also pull trailers very frequently. They tried to refer me to a rental agency but rental agencies don't even equip their rentals with tow packages. This is a known issue that is now obviously a common issue. GM need to fix this issue and get these trucks back on the road now. Otherwise offer a buyback. Trucks are specialized equipment that are used for specific purposes (i.e. towing). Car and SUV loaners or rentals can't replace the specialized need. This problem is not our problem and GM needs to make it right for their customers who have placed loyalty in GMC thru the years and have purchased $90k plus trucks.