Home · 2012 Chevrolet Express 4500 · Complaints

What 4 owners told NHTSA about the 2012 Chevrolet Express 4500

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 (4)Crash / fire / injury (1)Brakes (2)Fuel system (2)Electrical system (1)Steering (1)Transmission & drivetrain (1)

1 of 4 complaints match · Transmission & drivetrain · clear filters

Mar 25, 2013Transmission & drivetrainBrakes

THIS IS A BRAND NEW BUS, GM CHASSIS. IT HAS A LIMITED SLIP DIFFERENTIAL. THE BRAKE LINES ARE ROUTED IN FRONT OF THE REAR DIFFERENTIAL. TWICE, WE HAVE HAD ROCKS HIT THE BRAKE LINE AND SHEER IT OFF CAUSING TOTAL BRAKE FAILURE. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

NHTSA ODI 10504473

Working with the data? Download all 4 complaints as CSV · fetched from NHTSA July 26, 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 2012 Chevrolet Express 4500 verdict →