Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 2 of 4 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
Service Brakes. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Air Bags. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Electrical System. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports0 fire reports0 injury reports
What owners actually said
4 reports
Mileage unknown · Jul 15, 2024
Service Brakes
ABS light and warning bell on and sounding. Traction control light also on. Diagnostic shows error code c0020-01, ABS pump motor electrical failure. A canvass of every Dodge/Chrysler part supplier and all other possible parts suppliers including junk yards in the US and Canada revealed “no part (ABS Hydraulic Unit, 6834. 7099 …
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ABS light and warning bell on and sounding. Traction control light also on. Diagnostic shows error code c0020-01, ABS pump motor electrical failure. A canvass of every Dodge/Chrysler part supplier and all other possible parts suppliers including junk yards in the US and Canada revealed “no part (ABS Hydraulic Unit, 6834. 7099 AC) is available anywhere in the US or Canada. I was advised that it would be unsafe to drive the vehicle. I am stuck 2400 miles from my home with no solutions from anyone including Dynamax and Chrysler.
NHTSA ODI #11602359
Mileage unknown · Oct 25, 2022
Electrical SystemForward Collision Avoidance
The ABS (anti lock braking system) module failed resulting in ongoing beeping with display warning to service the system, and intermittent failure of other electrical features. A local mechanic diagnosed the problem and recommended replacement of the module. The Dynamax RV is a coach built on a Ram 5500 chassis. I was able to …
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The ABS (anti lock braking system) module failed resulting in ongoing beeping with display warning to service the system, and intermittent failure of other electrical features. A local mechanic diagnosed the problem and recommended replacement of the module. The Dynamax RV is a coach built on a Ram 5500 chassis. I was able to obtain a new replacement ABS module, but then learned that it had to be installed and "flashed" (programmed) by a dealer. I contacted Dynamax (now owned by Forest River), but have not received a reply. I then contacted the five nearest Ram dealers in my area. All of them told me that they could not help me because my vehicle is too big for their shop. I don't know if this problem affects my braking , but it appears that I am stuck with no solution. I hope you can help me. Any help would be appreciated.
NHTSA ODI #11490862
2,300 miles · Aug 20, 2019
Service Brakes
WE PURCHASED THIS MOTORHOME ON 8/12/19. THE LEVELING SYSTEM WAS NOT WORKING SO UPON CRAWLING UNDERNEATH TO FIND OUT WHAT WAS LEAKING WE DISCOVERED A COUPLING IN THE MODIFIED BRAKE LINE LEAKING. WE CHECKED THE BRAKE FLUID AND HALF WAS GONE. WE CONTACTED DYNAMAX WHO CLAIMED IT WAS CHRYSLERS RESPONSIBILITY. WE TOOK IT TO CHRYSLER A…
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WE PURCHASED THIS MOTORHOME ON 8/12/19. THE LEVELING SYSTEM WAS NOT WORKING SO UPON CRAWLING UNDERNEATH TO FIND OUT WHAT WAS LEAKING WE DISCOVERED A COUPLING IN THE MODIFIED BRAKE LINE LEAKING. WE CHECKED THE BRAKE FLUID AND HALF WAS GONE. WE CONTACTED DYNAMAX WHO CLAIMED IT WAS CHRYSLERS RESPONSIBILITY. WE TOOK IT TO CHRYSLER AND THEY INFORMED US IT WAS MODIFIED AND NOT THEY'RE RESPONSIBILITY. WE THEN FOUND A STICKER THAT SAID IT HAD BEEN MODIFIED BY MOR/RYDE. WE CALLED THEM AND THEY DID NOT KNOW. WE AGAIN CALLED DYNAMAX AGAIN AFTER 3 DAYS OF RUN AROUND AND THEY FINALLY CALLED MOR/RYDE TO CONFIRM THAT THEY HAD MODIFIED THE BRAKE LINES. OUR BRAND NEW MOTORHOME IS SITTING AT THE CHRYSLER DEALER WHO AT THIS POINT IS REFUSING TO DO ANY FURTHER WORK ON IT DUE TO THE MODIFICATION. WHAT DO WE DO NOW? THE VEHICLE WAS PARKED WHEN WE FOUND THE LEAK BUT WE HAD JUST DRIVEN IT OVER 300 MILES TO GET HOME. THE LEAK WAS CAUSED BY MOR/RYDE EXTENDING THE BRAKE LINE USING A COUPLING WHICH IT WHERE THE VERY BAD LEAK IS.*DT*DT *AS
NHTSA ODI #11245359
6,700 miles · Jul 8, 2019
Air BagsSeat Belts
VEHICLE IS A 2018 MERCEDES BENZ SPRINTER-BASED 24 FT MOTORHOME. IT WAS STATIONARY WITH ENGINE OFF. WHEN ROTATING THE DRIVER'S SWIVEL SEAT 180 DEGREES (WHICH IT IS DESIGNED TO DO), UNDERSEAT WIRING WAS SEVERED DUE TO IMPROPER WIRE ROUTING BY THE "UPFITTER" (DYNAMAX CORP), THUS CAUSING AN INSTRUMENT PANEL WARNING OF "SRS FAULT; …
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VEHICLE IS A 2018 MERCEDES BENZ SPRINTER-BASED 24 FT MOTORHOME. IT WAS STATIONARY WITH ENGINE OFF. WHEN ROTATING THE DRIVER'S SWIVEL SEAT 180 DEGREES (WHICH IT IS DESIGNED TO DO), UNDERSEAT WIRING WAS SEVERED DUE TO IMPROPER WIRE ROUTING BY THE "UPFITTER" (DYNAMAX CORP), THUS CAUSING AN INSTRUMENT PANEL WARNING OF "SRS FAULT; PROCEED IMMEDIATELY TO REPAIR FACILITY". THIS ANALYSIS WAS MADE BY MERCEDES BENZ OF KANSAS CITY SERVICE DEPARTMENT WHERE A REPAIR WAS PERFORMED. MERCEDES BENZ REFUSED COVERAGE UNDER THE CHASSIS WARRANTY SO I PAID THE REPAIR COST OUT OF POCKET ($388.90). I SUBSEQUENTLY WROTE A LETTER TO DYNAMAX REQUESTING REIMBURSEMENT. SEE ATTACHED PDF INCLUDING MB SERVICE INVOICE AND PAYMENT RECEIPT. I RECEIVED NO RESPONSE FROM DYNAMAX FOR TWO MONTHS. UPON FOLLOWING UP WITH DYNAMAX BY PHONE ON 7/8/2019, I WAS TOLD THE REIMBURSEMENT REQUEST WAS DENIED BECAUSE I WAS NOT THE ORIGINAL PURCHASER OF THE VEHICLE AND THEREFORE NOT COVERED UNDER THEIR WARRANTY. REGARDLESS OF THEIR WARRANTY POLICY, I BELIEVE AN INOPERATIVE AIRBAG SYSTEM CAUSED BY A MANUFACTURING DEFECT CONSTITUTES A SERIOUS SAFETY HAZARD, THE REPAIR COST OF WHICH SHOULD BE BORNE BY THE MANUFACTURER, NOT THE CONSUMER.
Forest River, Inc. (Forest River) is recalling certain 2018-2020 Dynamax Isata motorhomes. The slim-rack slide out mechanisms may activate unintentionally, extending or retracting the slide room unexpectedly.
Consequence & remedy
Consequence: If the slide-room extends or retracts unexpectedly, there is an increased risk of injury or a crash.
Remedy: Forest River will notify owners, and dealers will install a new controller and switch for the slideout mechanism, free of charge. The recall began January 24, 2020. Owners may contact Forest River at 1-574-206-7600. Forest River's number for this recall is 55-1030.
Forest River, Inc. (Forest River) is recalling certain 2018 Dynamax Isata vehicles built on a RAM chassis and equipped with a column shifter. Pushing the brake pedal for prolonged periods when the vehicle is running and in PARK may cause the Brake Transmission Shift Interlock (BTSI) pin to stick in the open position. With the pin in the open position, the transmission can be shifted out of PARK into any gear without pushing the brake pedal or having the key in the ignition.
Consequence & remedy
Consequence: Being able to shift the transmission without pushing the brake pedal and/or without a key in the ignition can increase the risk of an unintended vehicle rollaway that may result in personal injury or a crash.
Remedy: Forest River will notify owners, and Chrysler dealers will update the vehicle software, inspect the BTSI, and, as necessary, replace it, free of charge. The recall began May 6, 2019. Owners may contact Chrysler customer service at 1-800-853-1403 or Forest River at 1-574-262-3474. Forest River's number for this recall is 55-0993.
Forest River, Inc. (Forest River) is recalling certain 2017-2018 Dynamax Isata vehicles, models ISC36DSD, ISC35DBD, ISC36DSD4X4, built on RAM chassis equipped with Cummins 6.7L Turbo Diesel engines that have Concentric-brand water pumps without a vent hole. These water pumps may leak coolant.
Consequence & remedy
Consequence: The leaking water pump can increase the risk of an engine compartment fire.
Remedy: Forest River will notify owners and Chrysler/RAM dealers will replace the water pumps, free of charge. The recall began on December 4, 2017. Owners may contact Forest River customer service at 1-574-262-3474 extension 212, or Chrysler customer service at 1-800-853-1403. Forest River's number for this recall is 55-0564.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0
No exact-year investigations in this snapshot.
2018 Dynamax Isata Problems, Complaints & Recalls | Skip That Year