2022 Chevrolet Silverado 2500

I own a 2022 Chevrolet Silverado 2500HD equipped with the 6.6L Duramax diesel engine and Allison-branded 10 speed (10L1000) automatic transmission. VIN: [XXX]. While pulling away from a traffic light and accelerating to approximately 20 to 30 mph, the transmission suddenly began shifting harshly and erratically, experienced delayed engagement, unexpectedly downshifted, and would not shift into overdrive. At the same time, the check engine light illuminated and a Reduced Engine Power warning appeared. There were no warning lights, messages, or transmission symptoms prior to this incident. I pulled into a parking lot for approximately one hour, but when I resumed driving, the same failure occurred again. The transmission malfunction created a safety concern because the vehicle unexpectedly lost normal shifting and power while operating in traffic, making it difficult to accelerate and maintain speed safely. I contacted OnStar, which reported both an engine and transmission fault. I then drove the vehicle to my independent diesel mechanic, who diagnosed a failure of the transmission control valve body caused by an internal solenoid that is not serviceable separately, requiring replacement of the complete transmission control valve body assembly. The repair has been completed, so the original failed component is no longer available for inspection. The failure was confirmed by an independent service center. The vehicle has not been inspected by Chevrolet, law enforcement, or an insurance representative. I contacted General Motors to determine whether my VIN was included in the existing transmission control valve recall and was advised that it is not. I am submitting this complaint because my truck experienced the same symptoms and the same component failure as vehicles covered by the recall, despite my VIN not being included. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11755030

Incident

Jul 2, 2026

The contact owns a 2022 Chevrolet Silverado 2500. While driving at an undisclosed speed with a camper trailer attached, the integrated trailer brake controller failed to operate correctly, causing the camper to experience severe braking failures and the vehicle failed to slow down properly. The contact stated that the integrated trailer brake controller was unable to process the electrical current between the camper battery and the vehicle battery because of the different wattages on the camper. The failure with the electrical current limited the control to slow the trailer, creating an increased stopping distance while driving. The vehicle was taken to an authorized dealer for a repair under a GM Customer Satisfaction Program: N232414840; however, the dealer stated the program had expired. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 21,463.

NHTSA ID

11745638

Incident

Jun 22, 2022

Mileage

21,463 mi

The contact owns a 2022 Chevrolet Silverado 2500. The contact stated upon shifting into park(P), the tailgate opened independently. A dealer was contacted. No warning light illuminated. The vehicle was taken to the dealer, who informed the contact there would a charge for the repair because the VIN was not included in a recall. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 24V060000 (LATCHES/LOCKS/LINKAGES); however, the VIN was not included in the recall. The manufacturer was notified of the failure. The approximate failure mileage was 46,000.

NHTSA ID

11742929

Incident

May 9, 2026

Mileage

46,000 mi

The back glass has started leaking. Chevrolet had this problem in the 2019-2020 models but apparently they didn’t correct the issue.

NHTSA ID

11742545

Incident

Jun 1, 2026

Rear tailgate opening and closing repeatedly on its own. Background: Arrived home from work yesterday evening, Jun 4, 2026. Parked my truck in the driveway. It was a hot sunny day. Turned the vehicle off, exited the vehicle, and locked the doors. Upon walking around behind my vehicle, the tailgate was opening and closing repeatedly. I attempted to manually close it to see if it would stop, I pushed the lock button on my key fob, and I pressed the tailgate button on the dash which would normally cause it to either open or close depending on its current position. None of those steps resolved the issue. I quickly googled the problem, identified the correct fuse in the dash, and pulled the endgate fuse to stop the tailgate from opening and closing on its own. With the fuse pulled, the tailgate does not function. I called my dealer who informed me it is a known issue with some Silverado trucks and that some had been recalled however he noted my 2022 was not included in the recall for this issue. I have an appointment on Jun. 19, 2026 to have it repaired.

NHTSA ID

11742326

Incident

Jun 4, 2026

My 2022 Chevrolet Silverado 2500HD High Country 6.6L Duramax engine has an exhaust leak that causes diesel exhaust to travel into the pickup's cab through the outside air vent and air conditioning system during the exhaust system's regeneration. This occurs when the regeneration occurs in city driving especially at low speeds, stop lights, stop signs, parking lots, etc. The pickup has been to the dealer to find and make necessary repairs twice and is currently at the dealer's shop for the third time. This issue with the 6.6L Duramax pickups appears to be a common theme amongst owners and GM should be providing dealers with the appropriate fix with a recall of the exhaust system. This is a safety hazard as carbon monoxide enters the cab with the diesel exhaust and must be rectified. On my pickup, this started at approximately 55,000 miles. Thank you for your prompt attention to this serious air quality issue inside the pickups' cabs.

NHTSA ID

11738976

Incident

May 13, 2026

My 2022 Chevrolet Silverado 2500 HD 6.6 gas with 59K miles has been experiencing the "shift to park" problem associated with this and other Chevrolet/GM vehicles. When putting the car in park, the column shifter moves the transmission from drive to park but when you shut off the vehicle the "Shift to Park" warning comes on and prevents the car from completely shutting down. Apparently, this is due to a defective microswitch inside the steering column that GM is well aware of. There are literally hundreds of thousands of us Chevrolet/GM owners experiencing this same problem and GM needs to acknowledge their problem and fix it as they are charging up to $700 to fix this defective part that they know is causing this issue. This has nothing to do with regular "wear and tear" on the vehicle. GM is well aware of this issue and needs to be held accountable and issue a recall to fix this problem.

NHTSA ID

11738806

Incident

Apr 13, 2026

Tailgate latch failed, getting ghost signals and opens randomly. Happen to me going 65 mph down the highway. Exact symptoms as recall number N232426400. Have not taken it to a dealer yet. No warning signals

NHTSA ID

11730912

Incident

Apr 3, 2026

This PI provides information to repair the door water deflector which is not sealed properly allows water into the door jam/sill area.

This PI provides diagnostic tips for diagnosing electric trailer brakes issues.

PI to help diagnose A/C concern

This PI was created to help avoid unnecessary front camera module replacements

The purpose of this PI is to inform dealer technicians of a normal cab pressure relief valve noise to avoid unnecessary part replacement

This Preliminary information communicates information on a hydraulic rush type noise from the power steering gear. This noise is a characteristic of the new Active Hydraulic Assist System RPO NV8 and no repairs should be made.  The noise is most noticeable in the cab at idle, in park, with all accessories turned off.