2023 Chevrolet Traverse

Due to excessive current requirements being placed on it the alternator has failed at less than 31,000 miles. Replacements are unavailable and are excessively inflated at the dealership if available.

NHTSA ID

11773683

Incident

Oct 24, 2026

-The Torque Converter Clutch (TCC) inside the automatic transmission is malfunctioning. It is experiencing a known defect outlined in GM Service Bulletin 23-NA-072. The vehicle is still being driven and is available for inspection upon request. -The transmission violently shudders and vibrates under light acceleration at low speeds (such as pulling out into traffic, merging, or navigating intersections). This violent, unexpected shaking creates a distraction, mimics the feeling of a blown tire or driving over a rumble strip, and causes hesitation in acceleration, which creates a safety hazard when merging with oncoming traffic. -The problem has been consistently reproduced by the owner. It matches the exact diagnostic criteria of GM’s active Technical Service Bulletin for TCC shudder. -No, it has not been inspected. - No check engine lights, warning lamps, or dashboard messages have appeared. The physical symptom is a severe mechanical shudder/vibration at low acceleration speeds, which first began appearing at approximately 75,000-80,000 -

NHTSA ID

11772765

Incident

Jul 1, 2026

The contact owns a 2023 Chevrolet Traverse. The contact stated that while driving below 30 MPH, the vehicle shuddered during acceleration. Prior to the failure, the catalytic converter was replaced. The contact scheduled an upcoming appointment at the dealer for diagnosis. The failure mileage was approximately 120,000.

NHTSA ID

11771632

Incident

Jul 20, 2026

Mileage

120,000 mi

My 2023 traverse rs experienced a loud grinding noise and sudden loss of power, almost like i slammed the brakes on while moving. I was in the middle of the road and i could have been rear ended. 10/12/26. This matches the GM recall N222389310 exactly but my vin is currently excluded. I am also experiencing a heavy vibration since 9/13/2026 similar to diving over rumble strips, it is intermittent and will not throw a code, its been to the GM dealership where new transmission fluid was put in, however started again, that did not solve the problem . GM does not have a recall for torque converter clutch they are aware and had put out a technical service bulletin TSB-23-NA-072.

NHTSA ID

11770779

Incident

Oct 12, 2026

My car the steering gets hard to turn I have to turn car off and bk on also at light it lose power and roll and come back on sometimes things work and some times it don’t I have to shut off car and restart for things to work correctly and sometimes it work for a little bit while then start doing it again also feel funny when driving

NHTSA ID

11769984

Incident

Sep 18, 2026

The high-pressure fuel pump/fuel delivery system failed on my 2023 Chevrolet Traverse at approximately 47,480 miles. The vehicle generated diagnostic trouble code P0091. An authorized Chevrolet dealership inspected the vehicle and documented that the high-pressure fuel pump was “internally faulty” and required replacement. The vehicle and/or failed component may be available for inspection upon request, depending on whether the dealership retains the component after replacement. This failure presents a significant safety concern because the high-pressure fuel pump is responsible for maintaining proper fuel delivery to the engine. Failure of this system can result in hesitation, reduced engine performance, loss of power, stalling, or failure to start. A sudden loss of engine power while traveling at highway speeds, entering an intersection, or merging into traffic could increase the risk of a crash and endanger vehicle occupants and other motorists. The malfunction was confirmed by an authorized Chevrolet dealership through diagnostic testing. The dealership identified code P0091 and specifically documented the high-pressure fuel pump as internally faulty. To my knowledge, the vehicle has not been separately inspected by General Motors, law enforcement, an insurance company, or another independent investigator. Warning lights appeared intermittently prior to the diagnosis. The lights would illuminate and later turn off, despite the underlying malfunction still being present. I am concerned that a critical fuel-system component experienced an internal failure at only approximately 47,480 miles. I am requesting that NHTSA document and evaluate this failure to determine whether similar high-pressure fuel pump failures are occurring in other 2023 Chevrolet Traverse vehicles and whether this condition represents a potential vehicle safety defect.

NHTSA ID

11769265

Incident

Oct 1, 2026

Engine started consuming oil at around 25-30k miles. Now adding 3Q between the recommened oil change period. First realized this when driving on road trip and the engine oil low warning triggered. Driving at night on a interstate - had to pull off and find a safe place to check it. Could of been stranded with an engine failure in the middle of nowhere. Dealer confirms the issue, but GM says 1Q per 2000mi is "normal" in their world. Refuses to do anything when losing 1/2 your oil every oil change internal...

NHTSA ID

11765599

Incident

Nov 30, 2024

2023 Chevy Traverse LT with 33, 884 miles on it. ABS, TC, Service ESC, Service 4WD, Reduced Steering Assist. OBD2 Codes: C0040, U0414, U0121 populated. There is a short in the Electronic Brake Control Monitor, a part that should last way more than 3 years and 33k miles. $1300 to remove and replace EBCM.

NHTSA ID

11764409

Incident

Sep 15, 2026

This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3

PI created to guide technicians through radio restriction process

This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements. They should follow the notes mentioned prior to anything being replaced.

This Preliminary information communicates to dealers a procedure to reset the radio.

This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.