Chevrolet Tahoe slipping problems

Filed Aug 13, 2026 · Transmission · IN

The automatic transmission on my 2021 Chevrolet Tahoe (gasoline engine, 10-speed 10L80 transmission) has been exhibiting intermittent slipping/skipping during gear changes, particularly during acceleration and deceleration. The transmission component is available for inspection upon request. The malfunction poses a safety risk as the unexpected hesitation and rough shifting creates unpredictable vehicle behavior at highway speeds and during merging, increasing the risk of a collision with other vehicles. The problem has not yet been formally confirmed by a dealer or independent service center, however a knowledgeable automotive advisor has assessed the likely cause as moisture contamination of the transmission fluid, which degrades lubrication and causes erratic shifting behavior, known issue in several GM vehicles, but the only recall related to this issue is for just Diesel vehicles. I contacted General Motors customer service regarding this issue and was directed to file this complaint with the federal safety agency, as GM stated they were unable to attach or create a related existing recall to my vehicle. The vehicle has not been inspected by police, insurance representatives, or the manufacturer at this time. I am in the process of scheduling service at a transmission specialist. No warning lamps or dashboard messages appeared prior to or during the shifting malfunction. Symptoms first became noticeable at 85,000 miles, and have continued since.

Filed Aug 12, 2026 · Transmission · FL

The transmission began slipping at 20, 25, 35, and 45 mph by the time we hit 80k miles. The vehicle was out of warranty. We were told it was unaffected by the recalls and not related to the issues affecting other drivers. It now has 167k miles and we have tried having the transmission flushed but it still slips and needs a new transmission. Chevy knows about these issues and refuses to replace their horrible product since they also sell the cure to the problem and make money off of it.

Filed Jul 13, 2026 · Engine, Transmission · 181,000 miles · CO

The contact owns a 2017 Chevrolet Tahoe. The contact stated that while driving approximately 15 MPH uphill in the mountains, the transmission started slipping, followed by a loud banging sound. The contact stated that later, while fishing, there was an abnormal metallic sound like BBs hitting a tin can coming from the vehicle. The contact stated that previously, while driving at an undisclosed speed, the vehicle lunged forward, followed by grinding and banging sounds. There was no indication of a fluid leak coming from the vehicle. The contact stated that shortly afterwards, the vehicle stalled. The vehicle was restarted and resumed normal operation. No warning lights were illuminated. An unrelated warning light for the oxygen sensor was illuminated. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was contacted and informed that there was no recall coverage or assistance available for the vehicle. The manufacturer referred the owner to the federal safety agency Hotline for assistance. The failure mileage was approximately 181,000.

Filed Jun 23, 2026 · Acceleration, Transmission · NC

Chevrolet has a recall on some vehicles for a bad transmission valve body, but my vehicle isn’t a part of the recall and I’m having the exact same issues. Currently my only vehicle that I have to transport my 7 month old is a complete safety risk. My check engine light is on and the code its throwing is to replace transmission valve body assembly. My Tahoe is shifting very harshly when driving normally, it feels like it slams into gears causing the whole car to jerk. When sitting at a red light that turns green, Tahoe is slipping, barely wanting to move through an intersection with vehicles all around me. I’ve been advised to not drive my Tahoe at all because if I do I will certainly have severe drivetrain damage and rear wheel lock up. Like I said, Chevrolet already has a recall for this issue on some of their vehicles, but my specific Tahoe does not. This is my only vehicle for myself and my baby and I cannot drive it due to its safety issues.

Filed Jan 25, 2026 · Body · SD

I am submitting this complaint to report a potential vehicle safety defect involving the factory-installed running boards on a 2023 Chevrolet Tahoe. The running boards become extremely slippery during light snow or minimal winter precipitation, creating a significant risk of slipping while entering or exiting the vehicle. This occurs during normal use and does not require heavy snow or ice. I have experienced multiple near-falls despite stepping carefully, and the condition is repeatable. Given that the Chevrolet Tahoe is commonly used as a family vehicle and may be accessed by children, elderly individuals, or passengers with limited mobility, I am concerned that the running boards present an unreasonable slip hazard under common winter driving conditions. At this time, no injury has occurred; however, the frequency and severity of the slipping raises concern for potential injury if the issue is not addressed. The running boards are factory-installed and have not been modified. I am requesting that the federal safety agency review this issue to determine whether the design or materials of the factory running boards meet reasonable safety standards for normal winter conditions. Thank you for your attention to this matter. Sincerely, [XXX] Vehicle: 2023 Chevrolet Tahoe Component: Exterior – Running Boards INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Nov 22, 2025 · Transmission · VA

The automatic transmission on my 2019 Chevrolet Tahoe has failed prematurely at approximately 88,000 miles. The dealership confirmed internal transmission damage, specifically that Solenoid #3 in the valve body is sticking and not engaging, which requires a complete transmission replacement. Their written inspection states: “Possible internal damage in transmission. Solenoid 3 in valve body is not engaging.” The component is available for inspection upon request. Safety Risk: This malfunction created several dangerous situations. The vehicle hesitated, struggled to shift into gear, and at times moved forward while in reverse. These symptoms could cause loss of control, delayed acceleration when entering traffic, or unexpected movement putting myself and others at risk. Diagnosis Confirmation: Yes. The problem has been fully inspected, reproduced, and confirmed by an authorized Chevrolet dealership service center. They provided a written estimate of $8,669.59 for a complete transmission replacement. Inspection by Others: The transmission has been inspected by the dealership where the vehicle was purchased. No independent mechanic, police, or insurance representative has inspected it yet, but the dealership’s findings are available. Warning Lamps or Symptoms: Prior to the failure, I experienced hesitation, difficulty engaging gears, harsh shifting, and the vehicle lunging forward while in reverse. Shortly after these symptoms appeared, both the check engine light and tire pressure light came on. Additional Context: GM has released multiple Technical Service Bulletins (TSBs), including 19-NA-153 and 21-NA-199, addressing known issues with their 8-speed transmissions such as harsh shifting, slipping, and valve body/solenoid problems. This suggests a broader pattern of defects. GM and the dealership offered only 10% goodwill assistance, leaving almost the entire repair cost to the consumer, despite this being an internal mechanical defect with normal personal use.

Filed Nov 14, 2025 · Transmission · MN

At 155,000 miles transmission shudders and slips gears. Torque, converter went out and started slipping more and whining and making a grinding sound. Transmission had to be completely rebuilt, with all six clutches, and a brand new torque converter had to be installed.

Filed Sep 6, 2025 · Transmission · CA

Gear slip and shutter when accelerating loss power from taking off

Filed Aug 30, 2025 · Electrical, Engine · FL

The affected components are the electrical system, engine, and power train. In March 2025, my 2021 Chevrolet Tahoe displayed multiple warning lamps across the dash, including traction control and check engine lights. The vehicle shifted erratically and sometimes entered limp mode. I brought the vehicle to AutoNation Chevrolet South Clearwater for inspection. The dealer replaced the battery, dismissed my concerns, and stated that a test drive was performed, but the mileage in and out on the invoice was identical, showing it never actually occurred. Diagnostic trouble codes (P0700, P0717, P2714, P2716, P0706, and multiple U-codes) were present but were not fully investigated. A GM Technical Service Bulletin (21-NA-149, December 2022) covers these exact symptoms (caused by engine wiring harness chafing), but it was never referenced or applied. Because the problem was not addressed, the condition worsened. By July 2025, the vehicle suffered a complete transmission failure. At that point, the dealer confirmed the issue, documenting transmission slipping, shuddering, noise, and additional codes (P0700, P077C, P17F6, P17FB, P1872). GM increased its goodwill contribution from 15% to 40% of the $9,925 repair cost, while AutoNation offered only $500 despite their role in the missed diagnosis. Safety Risk: My family and I were at risk each time the vehicle stalled, lost power, or shifted erratically while driving, including at highway speeds. These failures created a significant risk of collision. The drivability problem was not properly confirmed in March 2025 despite multiple codes being present. By July 2025, the dealer acknowledged and confirmed the transmission failure. The vehicle remains available for inspection, and I have retained all invoices, diagnostic reports, and communications with GM and the dealership.

Filed Jul 25, 2025 · Engine · TX

I’m reporting a transmission failure that occurred unexpectedly on my 2021 Chevy Tahoe/the diesel version has been recalled so I don’t know why all the other 2021 Tahoe have not been recalled for this issue . The vehicle began shifting roughly and slipping between gears, followed by a warning message and eventual inability to shift properly. I had it inspected by a family friend who owns a body shop , and I was told the transmission needs to be replaced at a cost of nearly $7,000. I am no longer under powertrain warranty, but this failure feels premature and unsafe for such a new vehicle. I’ve seen many other 2021 Tahoe owners report similar issues online including transmission failure, harsh shifting, valve body problems, and complete breakdowns . This seems like a pattern, and I believe it may warrant investigation. I’m asking the federal safety agency to investigate whether this is part of a broader transmission defect that poses a safety or reliability concern. Sudden shifting issues and inability to accelerate or reverse are dangerous for drivers and passengers. Thank you for your time and attention to this matter.