2020 Coachmen Prism problems: recalls, complaints and what to check
NHTSA has 3 recalls and 2 owner complaints on file for the 2020 Coachmen Prism. Here is what they are, what a technician checks for each kind of fault, and how to look one over before you buy it.
Other: 1 recall, 1 complaint
Recall 20V358000 (16/06/2020): EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
Forest River, Inc. (Forest River) is recalling certain 2020-2021 Coachmen Galleria and PRISM, Forest River Forester, Battisti and Sunseeker and Dynamax Isata recreational vehicles built on Sprinter chassis with automatic transmission. The operator's manual does not correctly specify certain conditions under which the automatic parking function ("Auto-P") operates.
Fix: Forest River will notify owners, and Mercedes-Benz dealers will provide the correct description of the Auto-P function for the Operator's Manual, free of charge. The recall began June 25, 2020. Owners may contact Forest River customer service at 1-800-348-7440 or Sprinter service at 1-877-762-8267. The booklet with correct information is also available online through Mercedes-Benz, free of charge.
Doors, windows, steps and lights: 1 recall
Recall 20V477000 (14/08/2020): AIR BAGS:SIDE/WINDOW
Forest River, Inc. (Forest) is recalling certain 2020-2021 Forest River Forester, Sunseeker, Dynamax Isata and Coachmen Galleria and Prism motorhomes built on Sprinter Van chassis equipped with swivel seats. The wiring harnesses for the front seats may have been routed incorrectly and could become jammed and damaged in the swivel seat frames.
Fix: Forest River will notify owners, and Sprinter dealers will inspect the wire harness routing for both front seats and will repair the wiring and add clips or cable ties as needed, free of charge. This recall began September 21, 2020. Owners may contact Daimler Vans customer service at 1-877-762-8267. Daimler Vans number for their recall is VS3DREHSIK. Forest's number for this recall is 51-1206.
What a tech checks: Mostly adjustments and wear: steps that stop halfway on a bad switch, doors out of alignment after a slide shifted, exterior lights with a corroded ground. Before you buy: Every door, lock, window and light.
LP gas and gas appliances: 1 recall
Recall 20V727000 (23/11/2020): EQUIPMENT:RECREATIONAL VEHICLE/TRAILER:LPG SYSTEMS
Forest River, Inc. (Forest River) is recalling certain 2019 Coachmen Chaparral and Shasta, 2019-2020 Coachmen Concord and Orion, 2020-2021 Coachmen Cross Trek and Forest River Berkshire, 2019-2021 Coachmen Freelander, Leprechaun and Prism, 2020 Coachmen Mirada, Pursuit and Sportscoach, Dynamax Force, DX3, Dynaquest XL and Isata and Forest River Wildwood and 2008 and 2020 Forest River Salem vehicles equipped with Dometic 3 burner cooking stoves. The saddle valve securing bolt may be overtightened, possibly damaging the o-ring seal and causing a continuous gas leak.
Fix: Forest River will notify owners, and dealers will install a remedy kit of gaskets, washers, thread locker bolts, and two round orange labels, free of charge. The recall began January 11, 2021. Owners may contact Forest River customer service at 1-574-825-4995, or Dometic customer service at 1-574-293-0681. Forest River's number for this recall is 51-1259.
What a tech checks: Regulator, lines and fittings, then the appliances: furnace, water heater, range. A proper pressure-drop leak test is the first thing a tech does on an LP complaint. Before you buy: Smell for gas with the tank open; have a shop do the leak test.
LP and furnace lessons · Furnace guide · Furnace 3D lab · Water heater 3D lab
Motorhome chassis: 1 complaint
What a tech checks: The chassis (Ford, Freightliner, Mercedes, Ram) is serviced by the chassis maker's dealer, not the RV shop. RV techs handle the house, not the drivetrain. Before you buy: Chassis recalls are fixed free at the chassis maker's dealer.
Axles, brakes, suspension and hitch: 1 complaint
What a tech checks: Bearings, brake magnets, worn shackle bolts and bent axles. A trailer that wears tires on the inside edge or pulls to one side usually has an axle or suspension problem. Before you buy: Bolts tight, springs not flat, brakes apply with the breakaway pin pulled.
Chassis and towing lessons · Trailer guide
Structure, roof and leaks: 1 complaint
What a tech checks: Roof sealant, seams, window and slide seals, and the frame. Water intrusion shows up as delamination, soft floors and stained ceilings months after the leak started. Before you buy: Press the sidewalls and walk the floor; look at every seam and seal.
Roof, leaks and body lessons · Seals and leaks guide
What owners reported to NHTSA
04/02/2021, STRUCTURE: TL* THE CONTACT OWNS A 2020 COACHMEN PRISM RV. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 70 MPH, AN ABNORMALLY LOUD BANGING SOUND WAS HEARD ON THE PASSENGER'S SIDE OF THE RV. AFTER STOPPING TO INSPECT THE RV, IT WAS DISCOVERED THAT THE 12 FOOT MOTORIZED RETRACTABLE AWNING WAS UNSECURED, AND NEARLY DETACHED FROM THE RV. THE ROAD RANCHER WAS CALLED TO THE SCENE AND A REPORT WAS TAKEN. THE RV WAS LATER DRIVEN
03/25/2022, POWER TRAIN,VEHICLE SPEED CONTROL,SERVICE BRAKES: This Coachmen Prism 2150CB motorhome, built on a 2018 Mercedes Sprinter 3500 chassis, is now going back to the dealer a third time for the same problem. First time, rear wheel speed sensors were replaced while in for other service as a part of a recall. No big deal. But apparently the issue is not isolated to rear wheel speed sensors. At 11k miles, 500 miles from home, another wheel speed sensor went out, this time t
Looking at a 2020 Coachmen Prism?
The Buyer's Check walks you through it on your phone: what to ask, the outside walk-around, water damage, every system on every power source, with the recalls above built in. You get a report that says what's a walk-away and what to negotiate on.
Checked against NHTSA 2026-10-23. Recall repairs are free at an authorized dealer. Complaints are owner reports to NHTSA and are not verified.