2022 Chevrolet Suburban power train problems

“Intermittant slow, jerking when shifting gears. In 4wd rear wheels locked up on right hand turn, sliding through intersection. No warning or failure lights. Needs inspection and repair.”

“2022 Chevrolet Suburban, 3.0L Duramax diesel, 10-speed automatic, purchased March 2022, approx. 122,000 miles. In early August 2026 the transmission began shuddering at low speeds. Reported to the selling and servicing Chevrolet dealer on 08/11/2026 at 118,892 miles. No transmission diagnosis was performed; the dealer's written estimate recommended spark plugs on a diesel engine. The condition worsened. On 09/17/2026 the dealer verified the concern and documented a "very harsh shift which would continue until 5th gear" when accelerating, and found the transmission fluid "heavily contaminated with metal and clutch material." The dealer recommended transmission replacement at customer expense and stated GM Special Coverage N242454441 (transmission control valve wear, companion to Safety Recall 24V-797 / GM N242454440) does not apply because DTC P0747 is not set, although that bulletin lists harsh shifting as an effect of the worn control valve. The control valve body has not been inspected. GM's recall filing states this wear can cause harsh shifting and in rare cases momentary rear wheel lock-up. No warning lamps or messages appeared before the harsh shifting.…”

“Just for information purposes, I have been an ASE certified Master automotive technician for 30 years. As I was accelerating onto the highway, my transmission downshifted hard, throwing everything forward. It then went into limp mode with “ses” light on. I was able to drive it home stuck in one gear. The next morning I tried to drive the truck. It had reverse but when trying to go forward, the transmission was stuck in between gears and fighting itself. I manually shifted into low gear and it seemed to clear up the binding. I drove the truck up and down my driveway which is about a half mile long. No more “ses” light but when I went to park it, there was no movement in reverse. As I researched the problem I found the recall information on the valve body. I called several dealerships to find a service writer that had experience with these transmission issues. The truck was towed to a dealership that knew about this recall. Their technician checked for codes but there were none. It seems these trucks reset or “lose” codes when the ignition is turned off. He checked the fluid and decided that the reverse clutch must be burned up. They quoted a transmission…”

“I own a 2022 Chevrolet Suburban with approximately 115,000 miles. While driving, the check engine light illuminated and the vehicle suddenly entered limp mode. The transmission lost normal operation, including reverse gear, significantly limiting the vehicle’s ability to operate. The failure occurred without warning and created a potential safety concern because the vehicle could no longer respond normally to driving conditions. The vehicle was inspected by a Chevrolet dealership, where technicians diagnosed a failed transmission control valve body and confirmed the valve body required replacement. I paid to have the repair completed. After the repair, I learned that GM issued Special Coverage N242454441 for certain 2021-2022 Chevrolet Suburban vehicles equipped with the same transmission. The bulletin describes premature transmission control valve wear that can cause a service engine light, reduced engine performance, harsh shifting, and requires replacement of the transmission control valve body. My vehicle experienced the same failure and required the same repair, but my VIN was not included in the covered population. I contacted GM before authorizing the…”

“UNKNOWN TRANSMISSION ISSUES MENTIONED IN OTHER RECALLS FOR SAME PERIOD/MAKE MODEL AS LISTED YET MY VIN was not, as a mother 4 little ones I need my vehicle to perform as it was design to, the cost for this repair is over 6,000.00 I have already invested over 40,000 since I brought it. I feel they ought have included my car on this recent recall they had to have known this problem was of their why else would there recalls. I still must pay monthly for a vehicle that does perform as it should. This impacts my ability to provide for the needs of my children. I hope relief is on the way.”

“While driving down the high way with the check engine light on, a message appeared on the screen and said “unable to shift soon. Service transmission immediately.” After driving a few more miles the vehicle shifted to neutral, and then as soon as I got on the shoulder of the highway and slowed to approximately 5 mph, the vehicles wheels locked up and the car jerked aggressively into park. This exact issue has occurred multiple times while driving. It is unsafe to drive the vehicle.”