Home · 2025 Ram Ram 2500 Mega Cab · Complaints
What 57 owners told NHTSA about the 2025 Ram Ram 2500 Mega Cab
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.
2 of 57 complaints match · Engine & cooling · clear filters
May 15, 2026Electrical systemEngine & cooling
The contact owns a 2025 Ram 2500 Tradesman Crew Cab. The contact stated that the entire instrument panel became blank. The vehicle was taken to the dealer where it was diagnosed as needing a software update. The update was completed; however, the issue persisted. The software update was completed 4 times but the issue continued. The contact informed of another issue with vehicle involving the deft system, has to put the deft bottle next to the gas, the cage on the panel does not read that it has been filled. The vehicle was repaired for this issue. The manufacturer was notified of the issue. The approximate failure mileage was unavailable.
NHTSA ODI 11738160
Jul 3, 2025Engine & cooling
The contact owns a 2025 Ram 2500. The contact stated that while driving at an undisclosed speed, the vehicle stalled with the Diesel Exhaust Fluid (DEF) message displayed. The vehicle was able to restart. The vehicle was taken to the dealer, where it was diagnosed that the Diesel Exhaust Fluid (DEF) system had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 1,700.
NHTSA ODI 11671111
Working with the data? Download all 57 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 2025 Ram Ram 2500 Mega Cab verdict →