2021 Thor Motor Coach Delano problems, complaints & recalls
Most-reported problem areas: Lane Departure: Lane Keep: Steering Assist (1)
Safety recalls (1)
Seats 2020-07-29 · campaign 20V444000 · 463 vehicles
Defect: Thor Motor Coach (Thor) is recalling certain 2020-2021 Daybreak, Four Winds, Quantum, Delano, Tiburon, Chateau and Freedom Elite motorhomes and 2020 Gemini, Chateau Citation, Compass, Siesta, and Synergy motorhomes built on Sprinter Van chassis (platform 970 (VS30), 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.
Risk: If the wiring harness is damaged, the side air bag within the seat may deploy inadvertently or not deploy as designed in the event of a crash, increasing the risk of injury to vehicle occupants.
Fix: Thor will notify owners, and Mercedes-Benz 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 August 13, 2020. Owners may contact Thor customer service at 1-877-855-2867 Mercedes-Benz customer service at 1-877-762-8267. Thor's number for this recall is RC000200.
Service bulletins (5)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Back Over Prevention 2021-08-19 · RC000236SAOwner · Service Bulletin/Repair Instructions
on certain mercedes-benz sprinter vans, the mbux multimedia system software might not meet specifications. under very specific conditions, the mbux multimedia system might not start and the display might remain black, or could reboot unintentionally after 50 seconds of initial startup. accordingly,
Back Over Prevention 2021-08-19 · RC000236SADealer · Service Bulletin/Repair Instructions
on certain mercedes-benz sprinter vans, the mbux multimedia system software might not meet specifications. under very specific conditions, the mbux multimedia system might not start and the display might remain black, or could reboot unintentionally after 50 seconds of initial startup. accordingly,
Service Brakes 2021-06-09 · RC000220SAOwner · Service Bulletin/Repair Instructions
mbag has determined that on certain model year 2019-2020 sprinter vehicles, the retaining washer on the bolt that connects the brake pedal to its bearing block could come loose. if the retaining washer were to come loose, over time it could detach from the bolt, and in the worst case and with ongo
Service Brakes 2021-06-09 · RC000220SADealer · Service Bulletin/Repair Instructions
mbag has determined that on certain model year 2019-2020 sprinter vehicles, the retaining washer on the bolt that connects the brake pedal to its bearing block could come loose. if the retaining washer were to come loose, over time it could detach from the bolt, and in the worst case and with ongo
Electrical System 2021-01-25 · TSB 20-07 · Service Bulletin/Repair Instructions
procedure for retrofitting units with an onan 3.2 kw diesel generator to have hour meter function with firefly system.
What owners report
2021-07-06 · Lane Departure: Lane Keep: Steering Assist“the gps shows vehicle 124 miles from actual. conditions are different from actual at gps location. when driving on x-way vehicle shows speed different from actual and randomly applies brakes. also randomly grabs steering and pulls to right like lane departure action. these actions occur during work zones also and could cause an accident.…”
2021-05-27 · Unknown Or Other“2021 thor delano model rw. consumer stated that while driving the windows vibrate swiftly opens and closes slightly. *ld the consumer stated the dealer was made aware of the failure who replaced the window crank mechanism. the failure persisted.…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.