NHTSA Owner Complaint Log
This page lists owner-reported complaints filed with NHTSA for the 2020 Ram 3500. Complaints are unverified consumer reports submitted to NHTSA and do not by themselves prove a defect or defect rate.
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
TL* THE CONTACT OWNS A 2020 RAM 3500. THE CONTACT STATED WHILE DRIVING 75 MPH HAULING A HORSE TRAILER, THE POWER STEERING MALFUNCTIONED. THE POWER STEERING WARNING LIGHT WAS ILLUMINATED. THE CONTACT STEERED THE VEHICLE STRAIGHT FOR SIX MILES SINCE THERE WAS A TRUCK IN FRONT AND BEHIND HER. THE CONTACT WAS FINALLY ABLE TO PULL OFF A STRAIGHT AWAY EXIT RAMP AND PULL OVER TO THE SIDE OF THE ROAD. THE VEHICLE WAS TOWED TO THE NEAREST DEALER - LARRY GREEN AUTO GROUP (350 S. BROADWAY, BLYTHE, CA 92225 (760) 922-7121) TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THERE WERE SOME LOOSENED WIRES TO THE POWER STEERING MODULE. THE VEHICLE WAS REPAIRED AND TEST DRIVEN. THE VEHICLE WAS PICKED UP HOWEVER, THE FAILURE RECURRED. THE VEHICLE WAS TOWED BACK TO THE SAME DEALER BUT WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 3,000.
THE 2019 TO 2020 MODEL YEAR RAM 2500 HEAVY DUTY EQUIPPED WITH A 6.7L CUMMINS DIESEL ENGINE HAS A SAFETY ISSUE THAT COULD CAUSE A STALL AND INCREASE THE RISK OF A CRASH. THE BOSCH CP4.2 FUEL INJECTION PUMP HAS A VERY HIGH RATE OF SUDDEN FAILURE LEADING TO IMMEDIATE STOPPAGE ON THE ENGINE AND ENGINE BRAKING SYSTEM.THE PUMP DESTROYS ITSELF AND TAKES OUT THE REST OF THE ENTIRE FUEL SYSTEM LEADING TO REPAIRS IN THE $15,000-20,000 USD RANGE. FCA & RAM HAVE ATTEMPTED TO REVISE THE PUMP IN LATE (JULY) 2020 TO SOLVE THE ISSUE BUT THE FAILURES KEEP OCCURRING. FOR THE 2021 MODEL YEAR, FCA & RAM HAVE SWITCHED BACK THE PUMP ENTIRELY AND REVERTED BACK TO USING AN OLDER, SAFER, MORE RELIABLE DESIGN CP3. NO PUBLIC ANNOUNCEMENTS OF NEITHER THE PUMP REVISION IN 2020, NOR THE PUMP CHANGE IN 2021 HAVE BEEN MADE. THE ISSUE IS SO PREVALENT THAT THE REPLACEMENT PUMPS AND REPAIRS GENERALLY HAVE A 30-90 DAY WAIT PERIOD WHERE THE CUSTOMER IS WITHOUT THE PRIMARY VEHICLE. THIS PROBLEM IS A SUBSTANTIATED SAFETY RISK. ACCORDING TO A TEXAS JUDGE IN A BOSCH CP4.2 LAWSUIT, WHEN ANOTHER AUTOMAKER, GM TRIED TO DISMISS THE CASE SAYING THE PUMP FAILURE IS NOT A SAFETY ISSUE, THE COURT RESPONDED: "THE WORST CASE SCENARIO OF A TRUCK SPONTANEOUSLY STALLING AT HIGH SPEEDS IS NOT A MERE INCONVENIENCE. NOR IS IT A MERE INCONVENIENCE TO SPEND BETWEEN $8,000 TO $20,000 ON REPAIRS TO MAKE THE TRUCKS FIT FOR THEIR ORDINARY PURPOSE. THE COURT REJECTS GM'S SUGGESTION THAT THE RISK OF SPONTANEOUS ENGINE FAILURE WHILE DRIVING IS NOT, AS A MATTER OF LAW, UNREASONABLY DANGEROUS, DEPRIVING THE VEHICLES OF FITNESS FOR THEIR PURPOSE OF TRANSPORTATION.". TOYOTA AGREES: "IF A VEHICLE STALL OCCURS WHILE DRIVING AT HIGHER SPEEDS, THIS COULD INCREASE THE RISK OF A CRASH". FCA & RAM HAVE REMEDIED THE SITUATION FOR THE 2021 MODEL YEAR HOWEVER, THE 2019 AND 2020 OWNERS ARE STILL AT RISK.
With 20k miles the High-Pressure Fuel Pump blowup in middle of the freeway in NY. This part name is CP4. My truck subtlety stops in freeway in very dangerous situation. My luck is I had a State Patrol few cars back and he help me to safety the area and wait the tow. My truck stays 2 months parked on at Dealer to fix. The reason is they don’t have a new CP4 to replace is because all 2020 diesel Ram trucks had the same problem. 5 months later my CP4 blowup again with 49k miles now my CP4 and my Tank Fuel Pump breakdown in same time. More 2 months to fix.by the way my truck don’t had 9 months old and stay parked on dealer for 4 months. I paid 4 months of car payments and insurance for not use the truck. Other point is my braking pads. I replaced my front braking pads and rotors with 29k miles. This is unbelievable all my trucks I replaced this part between 70k and 90k. I paid $900 and I believe that my truck had something wrong with braking system also. Like I explained before. In both situations my CP4 subtlety blowups and stop my truck in middle of freeway. Truck engine shutoff and in 65 mph freeway this is very dangerous. God save my life in both situations because all the tomes someone come to help me. First time was State Patrol the second time is Highway Patrol in CA. Yes the problem happened 2 times and my truck in lees the 1 year stay parked on dealer for 6 months. With breakdowns in CP4, EGR, ECM, Tank Fuel Pump, Turbo Actuator and a lot leaks and gaskets breakdowns. My truck has now 1 year and 2 months old and stay on dealer for next two weeks to replace the Turbo Actuator. Just take a look on google and you guys gonna see a lot complaints. A lot! I don’t know. They replaced the component but stills breakdown. Every 3 months my truck stays on dealer for 2 months for fix. Last time I pickup my truck at dealer and next day it breakdown again with a different part problem. Actually my trucks stays with check engine lights on for 8 months.
I WAS DRIVING ON INTERSTATE 270 NB WHEN ALL OF SUDDEN THE VEHICLE STARTED SHAKING AND LOST POWER. I HAD TO STOP IN THE MIDDLE OF THE INTERSTATE AND WAS TOWED TO THE EXIT BY THE HIGHWAY RESPONSE TEAM. TOWED THE VEHICLE TO THE DEALERSHIP AND WAS TOLD THE THE FUEL SYSTEM HAS TO BE REPLACED.
THE TPMS SYSTEM ON MY NEW 2020 RAM 3500 HAS SUFFERED REPEATED FAILURES SINCE IT WAS PURCHASED NEW. THE DEALERSHIP HAS REPLACED ALL 6 SENSORS (DUALLY) IN AN EFFORT TO FIX THE ISSUE, NO NO SUCCESS. NOW, THE SERVICE WRITER SEEMS TO HAVE ACCEPTED THE PROBLEM AS UNSOLVABLE. QUICK RESEARCH ON SOCIAL MEDIA, AND STATEMENTS MADE TO ME BY MY LOCAL SERVICE WRITER LEAD ME TO BELIEVE THIS IS NOT AN ISOLATED ISSUE. THE 2020 RAMS SEEM TO ALL SUFFER THIS COM LOSS TO SOME EXTENT. AS, THIS IS NOW A MANDATED SAFETY FEATURE UNDER THE TREAD ACT, I'M ASKING FOR YOUR ASSISTANCE. SPECIFICALLY FOR MY TRUCK, THE TRUCK LOST COMMUNICATION WITH ONE SENSOR ON THE DAY AFTER I BOUGHT THE TRUCK. OVER THE COURSE OF THE NEXT MONTH, IT LOST AND OCCASIONALLY REGAINED, COMMUNICATION WITH SEVERAL OF THE SENSORS. BUT, IT NEVER AGAIN WORKED FULLY OF ITS OWN ACCORD. ABOUT 6 WEEKS AFTER PURCHASE, THE DEALERSHIP REPLACED ALL 6 SENSORS. THAT NIGHT ALL 6 WERE WORKING. THE NEXT MORNING, THE TRUCK HAD LOST COMMUNICATION WITH TWO OF THEM. ABOUT A WEEK LATER, A THIRD DIED. THE SERVICE WRITER AT MY LOCAL DEALERSHIP SAYS ITS PROBABLY A COMPUTER PROBLEM, NOT A REALLY A SAFETY ISSUE AND HE WON'T KNOW IF RAM COMES OUT WITH A FIX. PROBLEM IS ONGOING.*DT*JB*DT *TR
I WAS TOWING MY 5TH WHEEL TRAILER FROM RANCHO CUCAMONGA TO SAN DIEGO. WHEN I WAS DRIVING ON I-15, ALMOST NEARBY EXIT 15. SUDDENLY THERE IS A ERROR ON THE SCREEN , SAID 'EXHAUST BRAKE SYSTEM FAILED , ASK ME GO TO DEALER'. THEN I FOUND THERE IS NO POWER ANYMORE . I TRIED TO PRESS THE PEDAL AGAIN , STILL NO POWER. THEN I ROLLED OVER TO THE SIDE OF THE FREEWAY. WHEN THE SPEED CAME DOWN TO ABOUT 15MPH, THE ENGINE STOPPED. THEN I POOLED OVER , AND TRIED TO RESTART IT . NOTHING HAPPENED. I CAN HEAR IT TRYING TO START, BUT NO START ANYMORE. THEN I CALLED ROADSIDE DEPARTMENT TO TOW MY TRUCK AND TRAILER AWAY . IT TOOK 6 HOURS TO FIND THE TOW COMPANY, BUT STILL DIDN'T COME. THEN I PAID THE TOW COMPANY, THEN THEY CAME TO SAVE ME AND TOW MY TRUCK TO THE DEALER.
TL* THE CONTACT OWNS A 2020 RAM 3500. THE CONTACT STATED WHILE DRIVING 65 MPH AND TOWING A GENERATOR UP A HILL, THE VEHICLE STALLED WITH THE DIESEL EXHAUST AND ENGINE STABILITY CONTROL WARNING LIGHTS ILLUMINATED. THE VEHICLE WAS NOT DRIVABLE. THE VEHICLE TOWED TO PLATINUM CHRYSLER DODGE RAM JEEP LOCATED AT 65 TX-557 SPUR, TERRELL, TX 75160, (469) 249-9407, WHERE IT WAS DIAGNOSED WITH NEEDING THE FUEL PUMP TO BE REPLACED. THE VEHICLE WAS NOT YET REPAIRED. THE MANUFACTURER HAD BEEN INFORMED OF FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 16,684.
The vehicle does not always go in park. If you attempt to shut the engine off it will notify, If you left the engine running and get out of the vehicle it could roll away. This failure has happened more than 30 times. 3 times today.
I PURCHASED A KNEW 20 RAM 3500 AND ALL THOUGH I HAVEN'T HAD THE ISSUE HAPPEN TO ME YET, I'M A NERVOUS WRECK THAT IT WILL AND MY FAMILY AND I WILL BE STRANDED. THERE ARE HUNDREDS IF NOT THOUSANDS OF PEOPLE HAVING EXPERIENCED A CATASTROPHIC FAILURE OF THE FAIRLY NEW CP4 FUEL PUMP. WHEN THIS GOES, IT TAKES OUT THE WHOLE FUEL SYSTEM RESULTING IN $17,000 WORTH OF DAMAGE. WHAT'S WORSE IS THAT YOUR STRANDED ,WITH OUT A VEHICLE. DEALERSHIPS ARE ONLY DOING A LIMITED AMOUNT OF LOANERS BUT NOT A VEHICLE EQUAL TO WHAT YOU HAD. SOME HAVE WAITED FOR MONTHS AND FCA DOESN'T APPEAR TO BE DOING ANYTHING TO CORRECT THESE ISSUES. SOME OF US TRAVEL HUNDREDS OF MILES AT A TIME WITH AN RV IN TOW THAT IS A CONSIDERABLE AMOUNT OF WEIGHT. QUITE OFTEN WHEN YOU TRAVEL, THERE IS NOTHING AROUND OR PLACE TO COAST TO, OR EVEN IN THE MOST BEST AREAS. THE CP3 WAS PROVEN EQUIPMENT THAT WORKED WELL AND WHILE I UNDERSTAND AND ENCOURAGE THE ADVANCEMENT OF TECHNOLOGY, YOU HAVE TO BE WILLING TO ACKNOWLEDGE A PROBLEM WHEN YOU HAVE ONE, ESPECIALLY WHAT COULD RESULT IN A SAFETY ISSUE. THESE CP4 FUEL PUMPS NEED TO BE RECALLED UNTILL FURTHER RESEARCH IS DONE TO CORRECT THE ONGOING HIGHLY EXPENSIVE ISSUE THAT IS PUTTING ALL 2019 & 2020 VEHICLES WITH THIS PUMP AT A SAFETY RISK WITHIN A RAPID RATE OF ONLY UNDER 10,000 MILES AND OR LESS. IGNORING THE PROBLEM AND DOING NOTHING IS IRRESPONSIBLE AND NEGLIGIBLE. THE ANXIETY THAT THIS IS CAUSING MY FAMILY LET ALONE ALL THE OTHERS, IS VERY MENTALLY AND PHYSICALLY TAXING ON ONE'S LIFE. PLEASE INVESTIGATE THIS AND HELP ALL OF US INVOLVED GET A LITTLE PIECE OF MIND AND A MORE RELIABLE PRODUCT THAN THE CP4, THAT IS ALMOST GUARANTEED TO FAIL WITHIN A SHORT AMOUNT OF TIME.
I was driving my truck towing a fifth wheel trailer weighing over 10,000 pounds on a rural state highway in Missouri with many hills, curves, and little to no shoulders. As I was traveling on a downhill slope at approximately 60mph my engine abruptly died with no warning, causing an immediate loss of power steering, power brakes, and engine brake. I began applying heavy pressure to the brakes slowing the vehicle and began looking for a side road to pull into. I came upon a driveway with an open gate into a field. With much manual force to the steering wheel and brakes I was able to guide the truck and trailer off of the highway into the field to a stop. I was fortunate to not have anyone stopping in front of me as I am certain I would not have been able to avoid a crash with the heavy load and no power. The vehicle was towed to a local Ram dealer and metal shavings were discovered in my fuel system. Repairs were made under warranty and after 6 weeks my truck was returned to me with a new fuel system including a new Cp4 fuel pump that had failed. This happened on 08/28/2020 and the truck had 8900 miles at the time. On 09/15/2021 I discovered metal shavings in my rear fuel filter while doing routine maintenance The truck was running appropriately with no codes or warning lights, it had 72000 miles at the time. I telephoned a local Ram dealer shop and was told it would have to be diagnosed at their shop. Unwilling to take the chance with another Cp4 pump failing I contacted a local diesel shop and was advised to replace the Cp4 with a Cp3 pump. I purchased a new Bosch Cp3 fuel pump specifically modified for replacement of Cp4 pumps in Ram trucks and paid the local shop myself to do the work. I still have my second Cp4 pump in my possession.
NEW RAM SHUT DOWN & WONT RUN. DIAGNOSIS DONE BY DEALER TO CONCLUSION OF FUEL SYSTEM FAILURE. DEALER SAID NO PARTS AVAILABLE TO FIX TRUCK. 3RD TRUCK SINCE LATE JUNE. 2019 RAM 2500 WITH DIESEL ENGINE FAIL 30000MI 2020 RAM 3500 WITH SAME ENGINE 9600MI 2020 RAM 3500 4400MI WHICH TURN OUT TO HAVE CONSECUTIVE VIN# FIRST RAM FAILED PARKED SECOND RAM FAILED IN MOTION 3RD RAM FAILED PARKED
Data synced from NHTSA on May 4, 2026