Home · 2015 Ram 3500 · Complaints

What 136 owners told NHTSA about the 2015 Ram 3500

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 (136)Crash / fire / injury (8)Transmission & drivetrain (32)Engine (27)Brakes (24)Steering (21)Electrical system (19)Suspension (16)Wheels (15)Fuel system (6)Speed control (6)Airbags (4)

6 of 136 complaints match · Speed control · clear filters

Sep 10, 2024Electrical systemSpeed controlBrakes

ABS and Traction control warning lights are on display. Cruise control and 4x4 will not engage due to this issue. Also causing malfunction while towing a trailer.

NHTSA ODI 11613890

Oct 18, 2020Transmission & drivetrainSpeed controlVisibility & wipers

TIPM, REAR END LEAKS, TRANSMISSION REPLACED, DEF PUMP REPLACED, KNOX, EGR VALVE REPLACED, TURBO SENSOR, THIS TRUCK COST 2 DOLLARS A MILE TO OPERATE, BRINGING IT INTO THE SHOP IS LIKE PULLING TEETH HORRIBLE IT'S TWO TO THREE WEEKS.

NHTSA ODI 11365011

Mar 28, 2019SteeringSpeed controlBrakes

WHILE DRIVING ON HIGHWAY CRUISE CONTROL FAILED TO WORK, BRAKE LIGHT WENT ON AND STEERING WHEEL TURNED UPSIDE DOWN.*DT *DT BOTH JAM NUTS WERE FOUND TO BE LOOSE.*JB

NHTSA ODI 11192299

Dec 6, 2016Transmission & drivetrainSpeed controlEngine

IN JUNE 2016, TOWING A 14 FOOT LIGHT TRAILER UP SONORA PASS ON HWY 108 IN CALIFORNIA, THE TRUCK BUCKED, STUDDERED AND SHOOK IN FIRST GEAR, STALLED AND SLIPPED BACKWARD TOWARDS A 1000 FOOT CLIFF, IT THEN LUNGED INTO GEAR AND IT WAS SMOKING THE TIRES. I LET IT DO THAT TO GAIN TRACTION AND THEN SLOWLY MADE MY WAY BACK UP. I CANNOT TOW ANYTHING OUT OF FIRST GEAR WITHOUT THE BUCKING AND STUDDERS, AND LOSING FORWARD MOMENTUM, ANYWHERE. ALMOST LOST IT ALL THAT DAY INCLUDING MY LIFE AND NOTHING HAS BEEN DONE TO FIX THE ISSUE. 2 DEALERSHIPS IN 2 STATES ACKNOWLEDGE THE PROBLEM, STATE THEY HAVE OTHER CUSTOMERS THAT HAVE THE SAME PROBLEM BUT DODGE CANNOT SEEM TO UNDERSTAND A FIX OR THE SERIOUSNESS OF THIS DEFECT. THE TRUCK IS NOT SAFE TO TOW ANYTHING ANYWHERE AND THAT IS OBSURD FOR A RAM 3500. THIS TRUCK IS ADVERTISED AS THE NUMBER ONE TRUCK FOR TOWING, BUT IT JUST CAN'T DO THE JOB SAFELY. PLEASE VIEW LETTER SENT TO DEALERSHIP DATED JULY 9TH. 2016.

NHTSA ODI 10930188

Nov 17, 2016Transmission & drivetrainSpeed controlEngine

THE TUCK HAS A HORRIBLE LAG IN THE THROTTLE RESPONSE. WHEN TRYING TO PULL OUT INTO HEAVY TRAFFIC THE TRUCK LAGS MORE THAN IT SHOULD. THIS HAS BEEN HAPPENING SINCE THE DAY I BOUGHT IT NEW WITH 16 MILES ON IT. IF YOU PRESS THE PEDAL MORE THAN HALF DOWN FROM A STOP YOU CAN COUNT TO 30 BEFORE IT ACTUALLY STARTS MOVING. THERE HAVE BEEN MULTIPLE TIMES WHERE THIS HAS ALMOST CAUSED AN ACCIDENT. I HAVE BEEN READING FORUMS ABOUT THIS ISSUES AND HAVE COME UP WITH 2 CAUSES. 1 THE THROTTLE CONTROL PROGRAMING IS SET EXTREMELY CONSERVATIVE WHICH WILL CAUSE THIS. 2 THE ONE THAT ALMOST EVERYONE IS REPORTING IS THAT THE DPF REGEN SYSTEM IS CAUSING TOO MUCH BACK PRESSURE. PEOPLE ARE REPORTING THAT WHEN THEY DELETE THE EXHAUST AND EGR OFF THE TRUCK IT GETS ITS POWER BACK. THESE SYSTEMS NEVER SEEM TO COMPLETELY CLEAN OUT AND ALL WISE HAS HIGH BACK PRESSURE.

NHTSA ODI 10926613

Apr 26, 2016Electrical systemSpeed controlEngine

WHILE PULLING OUT INTO TRAFFIC THE VEHICLE WENT INTO LIMP MODE AND WOULD NOT SPEED UP. A POP UP IN THE CENTER INSTRUMENT PANEL SHOWED SERVICE THROTTLE POSITION, TOOK IT TO DEALER SAID I WAS DRIVING 2 FOOT. THEY SAID THIS HAPPENS WHEN ONE FOOT IS ON BRAKE AND OTHER ON FUEL PEDAL. TO ME THIS IS A BIG SAFETY CONCERN. I WAS NEVER TOLD ABOUT THIS AND FROM READING OWNERS MANUAL THIS WAS NOT COVER IN IT. THIS SHOULD NOT OF HAPPEN FOR I ALMOST GOT REAR ENDED FOR SOMETHING THAT SHOULD NOT BE IN THE SYSTEM. THIS IS A SAFETY CONCERN THAT SHOULD BE TAKEN OUT OF THE SYSTEM COMPLETELY. I AM CONCERN NOW OF WHAT MIGHT HAPPEN IF THIS DOES IT AGAIN WHILE PULLING OUT IN TRAFFIC EVEN WHILE TRAFFIC IS PRETTY CLEAR. BUT IF IN A EMERGENCY THIS COULD BE DANGEROUS NOT ONLY FOR ME BUT FOR OTHER DRIVERS. EVERY ONE DOES NOT DRIVE THE SAME SO THIS SHOULD BE FIX.

NHTSA ODI 10861445

Working with the data? Download all 136 complaints as CSV · fetched from NHTSA July 11, 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 2015 Ram 3500 verdict →