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Service bulletin RC000210SADealer

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10197609
Published by NHTSA2021-06-18
Manufacturer's numberRC000210SADealer
Manufacturer's date2021-01-18
NHTSA componentSTEERING

NHTSA's summary

It has been determined that on certain Mercedes-Benz Sprinter vehicles, the hydraulic power steering return line hoses might detach at their connection points under certain operating conditions, which could cause hydraulic fluid to leak, resulting in the loss of power steering assist. If the hydraulic power steering hose detaches, the driver will still have manual steering functionality, but increased steering effort will be needed, particularly at low speeds. Sudden loss of power steering assist as well as the loss of hydraulic steering fluid to the road surface may increase the risk of a crash. This affects the following Thor Motor Coach products: 2017-2020 Chateau, Chateau Citation, Four Winds, Gemini, Quantum, Siesta, & Synergy; 2018-2019 Compass; 2018-2020 Freedom Elite; 2021 Sanctuary & Tranquility

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Steering

Vehicles listed
THOR MOTOR COACH CHATEAU2017 to 2018
THOR MOTOR COACH CHATEAU CITATION2017 to 2020
THOR MOTOR COACH COMPASS2018 to 2019
THOR MOTOR COACH FOUR WINDS2017
THOR MOTOR COACH FOUR WINDS SIESTA2017 to 2020
THOR MOTOR COACH FREEDOM ELITE2018 to 2020
THOR MOTOR COACH GEMINI2017 to 2020
THOR MOTOR COACH QUANTUM2017 to 2019
THOR MOTOR COACH SANCTUARY2021
THOR MOTOR COACH SYNERGY2017 to 2019
THOR MOTOR COACH TRANQUILITY2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.