The contact owns a 2023 Chevrolet Blazer. The contact stated that while driving 10 MPH and pulling into a parking lot, the sun gear and the drive shaft fractured. The vehicle became inoperable. The vehicle was pushed to a safe place. The check engine warning light illuminated after the failure. The contact associated the failure with the federal safety agency Campaign Number: 23V172000 (Power Train). The vehicle was towed on a flatbed to the local dealer. The vehicle was not diagnosed or repaired. The dealer provided an estimate for the transmission replacement. The manufacturer was contacted and confirmed that there was no recall coverage on the VIN for the failure. The manufacturer referred the contact to the federal safety agency Hotline for assistance. The failure mileage was approximately 107,000.
2023 Chevrolet Blazer: complete transmission failure
5 of the 44 complaints about the 2023 Chevrolet Blazer describe complete transmission failure.
- owner complaints
- 5
- of this car's complaints
- 11%
- recalls
- 2
Complete transmission failure by model year
What owners say
On september 10, 2025 the transmission failed for the 3rd time without warning. This transmission only lasted about 5,500 miles. When it fails, it simply does so without warning. While driving it wll start shuddering and when you stop it just wont go after that. Gm knows there is an issue with these 9 speed transmissions because they are on backorder and my vehicle has been in the shop for over two months waiting on parts. Since this is the 3rd failed transmission under warranty, I created a complaintwith gm and requested a buy back but they refused.
On July 31st 2025 my vehicle would not sift out of first gear. I had vehicle towed to Kelly Chevrolet in [XXX] . After a failed repair attempt on August 18 2025 have been waiting on back ordered valve body part number 24045659. No eta on this part even though a transmission replacement would resolve but dealer refuses to replace. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
I am writing to inform the appropriate authorities of the issues that I’ve continually had with my 2023 Chevrolet Blazer. It has come to my attention that the aforementioned vehicle will need a new transmission and possible engine repair currently totaling at just over 6,000 dollars in repair costs. When I was provided with the total repair cost I was informed by the certified service representative that this was a common issue for the Blazer model and that GM was aware of the ongoing issue. I’ve reached out to GM with my concerns regarding this vehicle and the fact that this is an issue that has in prior dates prompted recalls for blazer models from the year 2020-2024. I have because of the transmission defects/ failures been stranded and unable to shift gears required for proper motion of the car. To which I am sure you can understand the public safety risk of an inoperative transmission. I have taken the car in for service concerning the transmission on 3 separate occasions within the last 10 days and was told by prior service technicians that “ No problems were visible” leading to the total breakdown of the transmission. I reached out to GM and told them of my wish to return the leased vehicle early due to my fears of now driving and operating the car and was told that I was not eligible for a buy back. GM is maintaining its stance of no liability and I am seeking outside help from this governing agency to ensure that repair costs are fully covered for this defective product.
The contact owns a 2023 Chevrolet Blazer. The contact stated while driving at an undisclosed speed, the vehicle shuddered, and the transmission was difficult to shift into gear. There was no warning light illuminated. The vehicle was taken to an independent mechanic and was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The vehicle was taken to the dealer, where the same diagnostic information was provided. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 96,244.
Service bulletins that may apply
- This service bulletin provides information on the harmful effects of ethylene glycol in transmission fluid.
- This service bulletin provides 9th gear operation information to respond to customers that may comment on...
- This informational bulletin describes/outlines the process for the 9T65 Automatic Transmission Replacement...
- This service bulletin provides diagnostic information/procedures to aid the service technician in...
- This service bulletin provides a procedure to correct a customer concern of Shudders or Shakes at Low Speeds.
- This service bulletin provides information on some vehicles that may rock or move slightly forward or...
- GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities
- This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is...
Related recalls
Power train: automatic transmission
- What is wrong
- General Motors, LLC (GM) is recalling certain 2023 Cadillac XT6, GMC Acadia, Chevrolet Blazer, Traverse, and 2022-2023 Cadillac XT5 vehicles. The transmission may have been built with an incorrect sun gear, which can result in the driver-side half-shaft disengaging from the transmission.
- Risk
- A half-shaft disengaging from the transmission can result in a loss of drive power or vehicle rollaway when the vehicle is placed in park. Either of these scenarios can increase the risk of a crash.
- Remedy
- Dealers will replace the sun gears, free of charge. Owner notification letters were mailed on July 27, 2023. The remedy is expected to become available August 31, 2023. Owners may contact Cadillac customer service at 1‑800‑458‑8006, Chevrolet customer service at 1‑800‑222‑1020, or GMC customer service at 1‑800‑462‑8782. GMC's number for this recall is N222389310.
Recall number 23V172000 · Recall details
Power train: driveline: driveshaft
- What is wrong
- General Motors, LLC (GM) is recalling certain 2023 Chevrolet Blazer and Traverse vehicles. The left-side half-shaft assemblies may be missing a retaining ring.
- Risk
- A missing retaining ring on the half-shaft can cause half-shaft inner joint separation, resulting in a loss of drive power or vehicle rollaway when the vehicle is placed in park. Either of these scenarios can increase the risk of a crash.
- Remedy
- Dealers will replace the left-side half-shaft assembly, free of charge. Owner notification letters were mailed February 23, 2023. Owners may contact Chevrolet customer service at 1‑800‑222‑1020. GM's number for this recall is N222390180.
Recall number 23V042000 · Recall details
Questions about the 2023 Chevrolet Blazer transmission failure
Is complete transmission failure a common problem on the 2023 Chevrolet Blazer?
5 of 44 owner complaints about the 2023 Chevrolet Blazer (11%) mention complete transmission failure. The model year with the most reports is 2000.
Is there a recall or service bulletin for this on the 2023 Chevrolet Blazer?
There are 2 recalls and 48 service bulletins for the same area of the car. Check them below with your VIN.
Other symptoms on the 2023 Chevrolet Blazer
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