10-speed automatic transmission valve body failure at 41k Parts are unavailable nor are replacement transmissions. Dealership says 3 months
2024 Chevrolet Silverado 3500 transmission complaints
Page 2 of 2: complaints 11 to 15 of 15, newest first, as owners wrote them.
The valve body failed on my transmission. My safety was impacted because as I was towing my 40 foot camper and my vehicle went into limp mode on the freeway at 70 miles an hour and I could only go 45 with four children in the vehicle. Yes the problem has been confirmed by a local dealership. There was a check engine light present, but eventually it went away and the truck returned to normal. This has happened one time before as well.
Vehicle and many like it with the 10 Speed transmission are having failing valve bodys which de-rates the vehicle to stay in 5th gear by GM coding and limits speed to 50 MPH. this part has a significant lead time while GM is rolling new trucks off the line with the part needed to rectify the issue of all the already purchased trucks and SUV's
Occasionally, after starting engine and applying brake pedal to shift into drive from park, engine rpm increases to over 1500rpm, and with full brake pedal applied rear wheels will spin while front brakes remain engaged and front wheels remain stationary. This has happened in a parked garage and rear wheels spun on dry concrete. Adding additional brake pedal pressure did not stop rear wheels from turning. This could result in a very dangerous situation and cause the vehicle to surge forward with little warning to driver allowing the vehicle to strike an object or bystander. When this occurred, brake pedal was firmly pressed and foot was completely off of the accelerator pedal. Each time this occurred I had to quickly shift vehicle into park to correct the situation. When shifted into park, the transmission parking pawl could be heard ratcheting. It is my belief that if four wheel drive was engaged, vehicle would move and overpower brakes when this occurs.
I was towing my 36 ft 5th wheel home from my storage place when the engine stopped. I had no brakes or power steering. I was coming up to a stop sign when this occurred so fortunately I was only moving about 15 mph. I was able to stop the truck and trailer by using the 5th wheel braking system without any damage to vehicle or other property. Once I regained my composure I tried to start the truck. All the dash lights were on but it would not start. The digital display kept showing Service ECM & Service StabiliTrak. I had the truck towed to the dealer where it is right now. They have been unable to replicate the issue and have no suggested fix at this time. I had no prior warning messages or symptoms of the problem. All of this happened Sunday April 5, 2024. The truck is a 2024 and I bought it new, picked it up November 30, 2023. Current mileage is 3,523. If I would have been towing on the Interstate at 60-65 mph around a curve this could have been catastrophic.
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