2024 Chevrolet Traverse

On April 11, 2024, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE24011 after receiving complaints concerning a loss of brake assist in 2023 MY Cadillac Lyriq vehicles. These complaints allege a hard brake pedal, followed by a “Brake System Failure” message at start up or while driving. GM shared records regarding several internal investigations for loss of brake assist due to alleged spindle fractures in the eBoost system. GM has stated that in the event of a spindle fracture, anti-lock brakes (ABS), stability control, and traction control remain functional until the vehicle comes to a complete stop. At this point, ABS, brake assist, stability control, and traction control functions are lost. The loss of these functions causes the vehicle to set one of three Diagnostic Trouble Codes (DTCs) based on failed performance criteria for the Electronic Brake Control Module (EBCM). These DTCs, in turn, activate several driver alerts: an audible chime, a visual “Service Brake System” message in the display, and multiple illuminated Malfunction Indicator Lights (MILs) for the ABS, Traction Control, and Brakes informing the driver of loss of functionality. The vehicle speed will also be limited to 70 KPH (43 MPH). Since opening PE24011, ODI has continued to receive reports of loss of brake assist. Some of these reports describe symptoms inconsistent with GM’s description of a spindle failure. These reports allege an immediate loss of brake assist functionality as opposed to the loss occurring after the vehicle comes to a complete stop. The sudden loss of brake assist during a braking event could result in extended braking distance, which increases the risk of a crash or injury. ODI believes further analysis is necessary to assess the potential for failures in GM’s eBoost system to resulting in safety-related outcomes. At this time, ODI is aware of the following vehicles that are equipped with this eBoost system: 2023-2026 MY Cadillac Lyriq, Chevrolet Colorado, and GMC Canyon; 2024-2026 MY Buick Enclave, Envision; Chevrolet Blazer EV, Equinox EV, Traverse; Cruise Origin; and GMC Acadia; 2025-2026 MY Cadillac Celestiq and Optiq. ODI is also aware of 2024-2026 MY Acura ZDX and 2024-2026 MY Honda Prologue vehicles that were built with this system. The Acura and Honda vehicles were manufactured by GM in a joint venture with Honda, and will be included in the Engineering Analysis as peer vehicles. ODI is opening this Engineering Analysis to further assess the safety-related consequences of a failed eBoost system. In addition, ODI is expanding the scope of the investigation to encompass all GM vehicles that share this eBoost system. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

See attached document for complaint.

NHTSA ID

11776208

Incident

Aug 11, 2026

My 2024 Traverse wore through 3 new batteries from the purchase date, XXX; to XXX; to XXX, when I was soon to enter XXX for my return trip home. All lights lit up; check ESC; steering/braking difficult; “bolted” upon acceleration at green light; pulling to side; told “not safe to drive” when I managed to get into Palm Chevy in [XXX] that I knew was close to my I-75 destination. Going 60-70 mph could have caused a bad accident, as control was difficult. The 1st similar episode not as severe was XXX. Both times the battery was discharging on the monitor. The 1st time XXX, I went to dealer, Bob Steele Chevy, [XXX] because I was planning an auto train trip to the northeast, concerned for safety. I now see WHY they did not put notes concerning that visit. They said I needed a new battery and charged me over $ 306 for it, stating another 30 months warrantee like the first battery, which they did not honor XXX, anyway. I now recognize why they did not put in notes. This recent failure occurrence was XXX, on a round trip from [XXX] (home) to [XXX]. In [XXX], Palm Chevy said it was not safe to drive the car back to [XXX]. I had AAA tow the car to Bob [XXX] Chevy and I rented a car to drive home. I called GM, so far have got nowhere with GM fluffing it off as no problem, which is why I am filing this complaint. I cannot in good conscience turn this car in for resale without discovery as to the source of the power drain. [XXX] said it needs a new battery again. Said there is nothing wrong with the car. Even I know a new car should not use up 3 batteries when they are boasting a 30-month warrantee. [XXX] says they cannot reproduce the problem. Of course not. They put a new battery unapproved, before getting to the bottom of the problem as to WHY the battery is wearing prematurely and left out note. No outside source inspected vehicle; it sits at [XXX]. Pls. help. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11775936

Incident

Oct 17, 2026

The following vehicle has been having issues with the window for months now when I first received the vehicle I was able to roll the rear windows down now after getting an update I can no longer roll the rear windows down. When cutting the car gets turned off there will be a lot of clicking noises.

NHTSA ID

11775891

Incident

Nov 5, 2026

*What component failed:* Brake System Control Module / Brake System Control Module communication. DTCs U0073 (Control Module Communication Bus A Off), U1610, U053B — Permanent codes. Vehicle has been at dealer 4 times for same brake system failure since purchase at 26,000 miles, now 31,290 miles. Current RO XXX replaced Brake System Control Module and programmed. Failed again XXX, 2 days later, same brake warning and same Permanent codes. Vehicle currently at Rotolo Chevrolet, [XXX]. Dealer tech [XXX] submitted TAC case to GM engineering for assistance. Component is available for inspection at dealer upon request. *How safety was at risk:* The brake got very hard i almost crashed with my family in the car on the freeway, they ended up replacing brake module and it happened again. *Has problem been reproduced/confirmed by dealer:* Yes — Confirmed and reproduced by Rotolo Chevrolet 4 times for same brake issue within 5,000 miles. Last repair replaced module, problem returned in 2 days with Permanent codes. Dealer confirmed failure and submitted TAC case to GM on XXX stating "a lot of back and forth with GM" needed. *Has vehicle been inspected by manufacturer:* Yes — Inspected and repaired by GM authorized dealer Rotolo Chevrolet. GM Technical Assistance Center (TAC) case opened by dealer and under review by GM engineering. *Warning lamps/symptoms prior to failure:* Brake system warning lamp, service brake system message, multiple Permanent DTCs U0073, U1610, U053B stored. First occurrence XXX at 31k miles, second occurrence 10/29/25 two days after module replacement. Symptoms: brake warning on dash, codes return immediately after clearing Permanent status. Vehicle originally was Manufacturer Buyback for loose sway bar links Its again at the dealer waiting for tac INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11775179

Incident

Oct 16, 2026

1. What component or system failed or malfunctioned, and is it available for inspection upon request? Multiple critical factory components and electronic systems failed or malfunctioned on this vehicle: • Electronic Brake Control / eBoost Software System: The factory brake-life tracking software severely malfunctioned, miscalibrating the braking system metrics. Furthermore, despite subsequent system recalibration confirming over 90% friction material life remaining, the braking system continues to suffer from persistent, severe brake noise. • Exhaust / Emissions System: A premature mechanical failure occurred in the exhaust system, resulting in a loud passenger muffler defect. • Electrical Charging System: The primary vehicle battery suffered from a premature voltage drop/depletion and completely failed standard diagnostics. • Restraint System: The third-row head restraints suffered from a factory defect causing them to jam (subject to active Customer Satisfaction Program N262558680). • Inspection Availability: Yes. The vehicle, its electronic systems, and all diagnostic readouts/replaced components are fully available for physical or electronic inspection upon request. 2. How was your safety or the safety of others put at risk? Safety was compromised across multiple vectors: • Braking Unpredictability: Driving a family vehicle with an active, unaddressed brake system software defect and ongoing noise creates extreme uncertainty regarding emergency stopping capabilities and electronic brake-assist behavior. • Crash Injury Hazards: The jammed third-row head restraints directly compromise the effectiveness of the vehicle’s passive restraint system, increasing the risk of severe whiplash or head injuries to rear passengers (including children) in a collision. • Uncontrolled Stranding: The combination of a depleted primary battery and severe system faults puts occupants at risk of sudden electrical failure or entering "limp mode," risking power loss in high-speed or

NHTSA ID

11774193

Incident

Sep 19, 2026

The suspension issue was discovered when I took the vehicle to National Tire and Battery on 10/9/26 they discovered a bolt that is attached to the control arm was not bolted down down correctly and all threads seemed to be damaged as well as the knuckle assembly. There were no warning lights or messages to let me know there was something wrong. Just some shaking and jingling. The car fax shows the dealership replaced the control arm early July and I bought the vehicle late July.

NHTSA ID

11773402

Incident

Oct 9, 2002

I have a 2024 Chevy Traverse with 32,000 miles. It has been using a quart of oil every 4,000. Bulletin states less than 1 quart every 2,000 miles is okay. Unbelievable that a new car is allowed to use any oil. Did not know I purchased a two‑stroke engine. If someone does not check their oil they could be running 2 quarts or more low in between oil changes, which could damage the engine. Just checked my level, see photo. Drove 3,000 miles and the level was almost at the bottom of acceptable. I still have 60% oil life before the next change. After another 1,000 miles probably would have gone below the low line. Not good for the engine. Mentioned to the dealer during the first oil change and they started overfilling. Told them to stop that as that is not good for the engine. I am worried the engine will fail prematurely.

NHTSA ID

11773266

Incident

Oct 23, 2026

2024 Chevrolet Traverse, 2.5L turbo (LK0). The cooling system has repeatedly lost coolant through quick-connect hose fittings. On 4-3-2026, at 36,650 miles, Washington Chevrolet replaced the radiator inlet hose under warranty for coolant loss. After that repair the vehicle kept losing coolant, and I have had to top off the reservoir repeatedly. No low coolant warning or dash alert has ever appeared. On 10-14-2026, at 49,066 miles, the same dealer found the outlet hose at the coolant surge tank leaking, rated it Critical, and quoted $480.30 to replace it. The dealer declined warranty and goodwill coverage. Safety concern: coolant loss with no driver warning can lead to overheating, reduced power, or engine shutdown while driving, including at highway speed. GM has acknowledged quick-connect coolant leaks on this vehicle under Special Coverage N262546590 (radiator inlet hose, 2024-2026 Traverse) and bulletin PIT6494A (the same seal failure on GM's 2.7L turbo trucks). My second leak is at a different quick-connect in the same cooling system, which those programs do not cover. I am asking NHTSA to investigate the quick-connect coolant fittings across the entire LK0 cooling system, not just the radiator inlet.

NHTSA ID

11771069

Incident

Oct 14, 2026

This Preliminary Information provides diagnostic tips and guidance for situations where key fobs cannot be learned or programmed successfully.

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

This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display

This Preliminary Information is to inform technicians to not replace any parts at this time and to use the work around provided. When a fix is available, this PI will be updated to a bulletin.

This Preliminary information communicates an issue with the virtual garage door opener not programming to a garage opener and to replace the opener with a new updated part.

• More responsive map controls when switching views • Trailer Theft Alert settings are saved between drives • More reliable access to on-screen controls for temperature, fan speed, and heated seats • Improvements that help prevent the center display from freezing or unexpectedly losing audio • Improvements to the infotainment system from Android update. This Android update removes Alexa Built-in (if supported). Google Assistant will remain available. • Fixes to improve responsiveness for the center display, driver display, and camera. • Fixes for Apple CarPlay functionality and connectivity (if supported). • Fixes to help ensure proper functionality for Bluetooth. • Improvements to audio system performance.