Home · 2020 Chevrolet Express Passenger 3500 12 Pass · Complaints

What 18 owners told NHTSA about the 2020 Chevrolet Express Passenger 3500 12 Pass

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (18)Crash / fire / injury (1)Transmission & drivetrain (10)Body & structure (3)Electrical system (3)Brakes (2)Engine (2)

3 of 18 complaints match · Electrical system · clear filters

Oct 23, 2025Electrical system

While driving this cargo van, the driver stopped in traffic to make a left hand turn. In the middle of the turn, the vehicle stalled out and would not immediately start, exposing the vehicle to nearly being hit by the oncoming traffic. When the vehicle eventually restarted, and later brought to a GM dealer for repair, it was discovered that the main ground cable had completely deteriorated. In our fleet of 15 GM vehicles, this is now the SEVENTH vehicle that has needed this main ground cable replaced. This is a serious issue that needs to be addressed.

NHTSA ODI 11695217

Jun 24, 2025Electrical system

The contact owns a 2020 Chevrolet Silverado 3500. The contact stated while driving at an undisclosed speed, the service brake warning light illuminated. Additionally, the contact stated that the failure had occurred while the trailer was hitched to the vehicle. The vehicle was taken to the dealer where it was diagnosed with a failed trailer brake power module. The contact was informed that the trailer brake power module needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 65,000.

NHTSA ODI 11668859

Sep 21, 2021Electrical systemBody & structure

The contact owns a 2021 Jayco Redhawk. The contact stated that while inspecting underneath the RV the plumbing hoses and lines as well electrical wires, fuel line from the propane tank, and fuel line from the generator was just lying on the frame. The hoses and lines were not insulated or secured underneath the RV. The contact stated that he was concerned that a fire could have been started. The contact stated that he wire-tied all the wires, so they were not laying on the frame. The vehicle was taken to the dealer who only secured the wires with a single wire tie. The contact stated that many of the wires were still just hanging as the dealer did not repair the problem. The contact stated that the brake, fuel, and electrical harness were all clamped together which could cause a failure. The Jayco dealer advised the contact to take the vehicle to a GM dealer for repairs to the chassis. The contact stated he contacted McGee Chevrolet (1455 New State Hwy, Raynham, MA 02767) and they stated they could not repair the RV due to the large size. The contact stated that the Jayco manufacturer was notified and advised to take the RV to a Jayco dealer for repairs. The failure mileage was approximately 1,000.

NHTSA ODI 11433832

Working with the data? Download all 18 complaints as CSV · fetched from NHTSA July 19, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2020 Chevrolet Express Passenger 3500 12 Pass verdict →