Thor Motor Coach Synergy: problems, complaints, bulletins

Summary for the Thor Motor Coach Synergy across 6 model years: 0 owner complaints and 10 NHTSA service bulletins, plus repair videos. Pick a year for details.

Model years

Year	Owner complaints	involving a crash	Technical service bulletins (TSB)	YouTube repair videos
2022	0	0	1	0
2021	0	0	2	0
2019	0	0	4	0
2018	0	0	7	0
2017	0	0	5	0
2016	0	0	1	0

Components owners complain about

Component	Owner complaints	involving a crash	Technical service bulletins (TSB)
Electrical system	0	0	8
Steering	0	0	6
Equipment	0	0	4
Service brakes	0	0	2
Fuel system	0	0	1
Structure	0	0	1

What to check before buying

Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Steering. Steering play, power assist, rack and tie rods after a wheel impact.
Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Fuel system. Fuel smell, leaks, rough running, fuel-system codes.

Manufacturer service bulletins

Bulletin titles as filed with NHTSA.

2020–2024 · 10220385 · 2022 Wood stiles are delaminating due to the vendor changing the glue used for the wrapped stiles
2020–2024 · 10197980 · 2021 MBAG has determined that on certain model year 2019-2020 Sprinter vehicles, the retaining washer on the…
2020–2024 · 10197979 · 2021 MBAG has determined that on certain model year 2019-2020 Sprinter vehicles, the retaining washer on the…
2020–2024 · 10197969 · 2017–2019 On certain model year 2012â 2018 5-ton Sprinter vehicles that were upfitted into campers or recreational…
2020–2024 · 10197968 · 2017–2019 us
2020–2024 · 10197610 · 2017–2019 Model/Model Year to Add
2020–2024 · 10197609 · 2017–2019 It has been determined that on certain Mercedes-Benz Sprinter vehicles, the hydraulic power steering…
2015–2019 · 10124238 · 2018 This letter provides information regarding the Sprinter tank programming update
2015–2019 · 10124237 · 2018 This letter provides information regarding the Sprinter tank programming update
2015–2019 · 10124236 · 2016–2018 This letter stated that there was one (1) Service Notification issued for the month of October, 2017

Other models of this make

Read also

Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.