2024 Chevrolet SILVERADO 2500 - Ratings, Complaints and Recalls

"i kept getting “check trailer wiring” messages followed by a “trailer disconnected” message while towing a trailer and the trailer brakes would not engage. the trailer would “reconnect” and then “disconnect” constantly while driving. i lost my trailer brakes while trying to brake down a hill. not having working trailer brakes is extremely dangerous."

"if our trailer is plugged into the truck the warning "check trailer wiring" pops up. the warning ("check trailer wiring") would display and then the message "trailer connected" would generally happen. the trailer breaks disconnect during this time making it extremally dangerous for us and anyone else on the road if we need to stop quickly. this is not an issue with our new trailer as we pulled it with a 2017 silverado with no issues."

"while pulling fifth wheel camper the the electronic brake controller looses connection and brakes on the trailer do not work leaving only the truck brakes to stop both truck and trailer. general motors claims this is caused due to the solar panel on the trailer charging the trailer battery more than the truck battery which back feeds into the system. this problem only occurred on the 2024 models. the same trailer was pulled with a 2021 model with no issues. this is a known problem which chevrolet has a service bulletin stating such. reference document # 6379278. at this time there has not been a fix. this is a safety hazard because there is no warning as to when the trailer brakes will stop working."

"when my fifth wheel trailer is attached via the seven pin plug, the truck intermittently fails to recognize the trailer and i get a warning "check trailer wiring." when i get that warning, the integrated trailer brake controller fails to activate the trailer brakes. after a while i get the message "trailer brakes connected" and then the trailer brake controller activates the trailer brakes. this problem does not occur when the trailer is attached to a different truck. apparently this is a well-known problem that gm has failed to correct or inform customers about. please see the comments at [xxx] . this is a serious safety hazard as my trailer brakes have failed to activate while descending some very steep grades in the mountains. information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6)"

"when towing my travel trailer with the 2500hd, the electronic trailer brake randomly connects and disconnects while driving. this results in the unsafe operation of the trailer because the brakes aren't functional and puts others at risk if stopping was required during the outage. gm/chevy has created document #6379278 which admits that this is their issue but they don't seem to be providing a fix."

"when truck is connected to a trailer with electric brakes, intermittently a check trailer wiring warning flashes on the dashboard screen. when this happens you do not have trailer brakes. it has happened on multiple trailers with 7 pin connections. i have taken it to the dealer twice with no fix other than gm recommending a non gm trailer receptacle. i have taken my trailer to the dealer and they could find no problems. basically the 2024 silverado 2500 hd when hooked to trailers with industry standard 7 pin 12 volt receptacle loses trailer brakes. this condition potentially is fatal and a definite hazard to public safety on roads. problem was reproduced at the chevy dealership in pensacola fl. the problem was reproduced on multiple trailers at great american rv in defuniak springs fl."

"while towing my fifth wheel trailer, the electric trailer brakes module shuts off with a message "check trailer wiring". when the module shuts off, the trailer brakes do not actuate relying fully on the truck to stop as the trailer brakes will not work. the plug was firmly seated and it caused issues whether using the in bed plug or the bumper plug. after some time, the message would go away and the system would display the message "trailer connected" and the trailer brakes would work again. after some time, the process would repeat several times (30-40 times) primarily from mid morning to evening. i verified plug tightness and applied dielectric grease to ensure a good connection and that did not improve the issue. the trailer is 1 year old and was pulled with 3 other trucks (2 dodge and another chevy) with no issues at all. i was able to locate a gm bulletin numbered "document id: 6379278" that references this problem and states to disconnect the trailer solar panels while a fix is developed. this was only found on an rv owners forum. i was able to disconnect my solar panels on my trailer and the issue was no longer present with my brakes working properly and no error messages for 10 hours of driving. this is a significant safety issue and needs to be made abundantly clear to drivers who haul trailers. not all solar panels are easily disconnected and should be done by a qualified electrician due to the potential hazards of their voltage. additionally, not having trailer brakes while driving on the interstate is a significant safety hazard that greatly increases the chances of an accident as the brakes would stop working without warning including while in use. my vehicle is a scheduled for an inspection at the dealer on 7/22/23."