Recalls, owner-reported complaints, investigations and safety data
Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
0
Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
0
InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
0
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
0
Overview
Our database contains no NHTSA owner-reported complaints for the 2021 Thor Motor Coach Tranquility. 6 manufacturer communications are on file.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Safety recalls
No recalls in our database for this model year
That does not guarantee a specific vehicle is unaffected — recalls are issued against VINs, and new campaigns are announced regularly. Check a VIN on NHTSA.gov.
Recent owner complaints
Reports submitted to NHTSA, shown in the owner's own words
No owner complaints recorded for this model year
Either none have been filed with NHTSA, or this vehicle is too new for reports to have accumulated.
Manufacturer communications
A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.
RC000236SADealer
BACK OVER PREVENTION
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, the rearview camera image might not be displayed or the display might be interrupted, which could increase a risk of a crash or injury. This affects the following Thor Motor Coach products: model year 2020 Citation, Siesta, & Synergy; 2020-2022 Delano & Tiburon; 2021-2022 Sanctuary & Tranquility motorhomes.
RC000236SAOwner
BACK OVER PREVENTION
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, the rearview camera image might not be displayed or the display might be interrupted, which could increase a risk of a crash or injury. This affects the following Thor Motor Coach products: model year 2020 Citation, Siesta, & Synergy; 2020-2022 Delano & Tiburon; 2021-2022 Sanctuary & Tranquility motorhomes.
RC000235SADealer
ELECTRICAL SYSTEM:WIRING; SEATS
MBAG has determined that on certain Mercedes-Benz Sprinter vehicles that are equipped with electrically adjustable front swivel-seats, the seat wiring harness may be improperly routed or mounted within the swivel-seat frame and could become pinched and damaged during the electric adjustment of the seat position. If the wiring harness were to become pinched and damaged during adjustment of the swivel seat, in a worst case scenario, the operation of the seat-mounted side airbag might not operate properly and the side airbag could either deploy inadvertently or not deploy as designed in the event of a crash. This condition could increase the risk of injury in the event of a crash. This affects the following Thor Motor Coach products: model year 2021/2022 Sanctuary and 2021/2022 Tranquility motorhomes.
RC000235SAOwner
SEATS
MBAG has determined that on certain Mercedes-Benz Sprinter vehicles that are equipped with electrically adjustable front swivel-seats, the seat wiring harness may be improperly routed or mounted within the swivel-seat frame and could become pinched and damaged during the electric adjustment of the seat position. If the wiring harness were to become pinched and damaged during adjustment of the swivel seat, in a worst case scenario, the operation of the seat-mounted side airbag might not operate properly and the side airbag could either deploy inadvertently or not deploy as designed in the event of a crash. This condition could increase the risk of injury in the event of a crash. This affects the following Thor Motor Coach products: model year 2021/2022 Sanctuary and 2021/2022 Tranquility motorhomes.
RC000210SADealer
STEERING
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
RC000210SAOwner
STEERING
Model/Model Year to Add: 2017 Chateau 2017-2018 Chateau Citation 2017 Four Winds 2017-2019 Gemini 2017-2019 Quantum 2017-2019 Four Winds Siesta 2017-2019 Synergy 2018 Compass 2018 Freedom Elite 2021 Sanctuary 2021Tranquility PLEASE NOTE- Due to being unaware that chassis recall notifications we provide to TMC Owners and Dealers would need to be submitted at time of release, this communication is a historical filing.
Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.
Compare model years
Complaint and recall counts across every year of this model
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.