2024 CHEVROLET SILVERADO 2500 Complaints

Transmission has locked up briefly during decelerations, has been making grinding noises, has high transmission fluid temperatures, hard shifts during acceleration and deceleration, and has slipped during acceleration.

Onstar stopped working after an over the air software update and has not worked since.

The contact owns a 2024 Chevrolet Silverado 2500. The contact stated that while driving at an undisclosed speed, the trailer hitch detached. The contact stated that the failure occurred while a trailer was hitched to the vehicle. The contact stated that the failure caused damage to the trailer and a hole in the bed of the vehicle. In addition, the contact performed an inspection of the vehicle and noticed that the trailer hitch was not properly welded. The vehicle was taken to an independent mechanic, where it was confirmed that the metal hitch was not penetrated. The vehicle was taken to the dealer, where the vehicle was diagnosed. The contact was informed that the results could not be disclosed to the contact. The contact stated that because of the failure and not knowing the safety of the vehicle, the vehicle had not been driven since. The manufacturer was made aware of the failure, and a case was filed. The manufacturer requested a third-party investigation. The contact was requested to take the vehicle to the dealer. The manufacturer requested that the vehicle be taken to the dealer so that the third-party investigation could be performed. The vehicle was picked up by the dealer. The contact was informed that the investigation was completed; however, the results were not shared with the contact. The failure mileage was 29,300.

The contact owns a 2024 Chevrolet Silverado 2500. The contact stated that while driving at various speeds, the vehicle lost motive power and decelerated. The vehicle was taken to the local dealer to be diagnosed, and it was determined that the transmission valve body was faulty. The valve body was replaced and reprogrammed, but immediately after retrieving the vehicle, the failure reoccurred while driving approximately 45 MPH. The cause of the failure was not yet determined. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 62,000.

The fuel pump inside the tank shorted out and left us stranded. This is the same pump that was used on the the 2022 Duramax systems however they upped the fuel pressure on the 2024 refresh and it has become a known problem of shorting out.

The differential, front right axil "housing" is rusted to the point that it is pitting. The rust completely covers the entire right axil housing and does not come close to matching the light corrosion when compared to the rest of the differential or anywhere else on the vehicle. These indicators lead me to believe the housing was in a corrosive environment prior to being installed onto the differential where both the internal and external surfaces of the housing were exposed to same corrosive environment. Several concerns: If the inside of the axil housing is rusted as bad as the outside, the integrity of the axil has been compromised; Internal rust contamination will lead to premature failure; the housing was not properly heat-treated; no vehicle should be delivered brand new with this level of rust on any part. The issue was pointed out to GM shortly after purchased new. The vehicle has been kept in a non-corrosive environment since it was purchased, and GM refuses to assess the internal integrity of the axil housing and refuse to install a new housing. I am cautious about towing heavy loads since I do not want risk towing 21,000 lbs. if or when the housing fails. I have seen other Silverado, 2500 HDs with the same issue. As an experienced Airframe and Powerplant mechanic with automotive experience, I would never allow a vehicle to operate with this level of contamination unless I could confirm the integrity of the housing via nondestructive inspection and thickness measurements. Or should I just start towing and wait to see if it fails?

The contact owns a 2024 Chevrolet Silverado 2500. The contact stated that while driving at 45 MPH, the vehicle failed to accelerate as intended while depressing the accelerator pedal. An unknown warning light illuminated, and a transmission message was displayed. In addition, the RPM was fluctuating. The vehicle was taken to the dealer, where it was diagnosed that the transmission valve body needed to be replaced. The vehicle was not repaired because the part for the repair was not available. The vehicle remained with the dealer unrepaired. The manufacturer was not informed of the failure. The failure mileage was unknown.

My truck had approximately 55,000 miles on it when the incident happened. I pulled out of a store and began going down the road and the rear wheels locked up slamming everything forward and the truck and leaving us almost rear ended. The truck was stuck in one gear after breaking the tires free with check engine lights flashing and the dash saying reduced power. It has since been at the dealership for 3 months waiting on a valve body with no end in sight. There is apparently a national back order on these faulty parts because of how common this high speed rear wheel lockup is so I am left without a vehicle or an end in sight.

Instrument cluster stopped working, I have no speed or fuel remaining indicators. Dealer completed software recall work which did not fix the issue. Replacement is on back order so I am unable to drive the vehicle for an unknown amount of time.

While towing my travel trailer at 55 mph the truck rear tires locked up causing an alerting situation. The transmission automatically shifted out of tow/haul mode, the CEL illuminated and the following message appeared on the dash "reduced acceleration condition, drive with caution". This event happened a total of 3 times within a 20 mile distance. Because it was a short burst and I was traveling on a straight section of roadway, the risk of accident was moderate. This would have been a high risk of danger if I were on a curving downhill section of roadway. The situation was confirmed by my local dealer through a diagnostic check exhibiting a P0747 and P0700 error code. There were no CELs or other warnings prior to the lockup. The diagnosis was a problem with the transmission valve body. A new valve body was ordered and arrived 14 days later. After the new VB was installed the symptoms appear to be gone after driving about 50 miles.