RoadVitals

2015 Thor Motor Coach Four Winds Siesta

Recalls, owner-reported complaints, investigations and safety data

Data refreshed

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.
2
Latest Jul 20, 2020
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.
2
Latest Nov 22, 2017
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.
1
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 2 NHTSA owner-reported complaints for the 2015 Thor Motor Coach Four Winds Siesta, most frequently naming the driver assistance and electrical categories. 2 safety recalls have been issued covering this model year; 1 NHTSA investigation names it; and 3 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.

What owners report

Complaints grouped by the component NHTSA recorded

  • Driver assistance150.0%
  • Electrical150.0%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Safety recalls

2 campaigns cover this model year

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov
17V758000

EQUIPMENT

Nov 22, 2017
110,400 units potentially affected
The defect: Thor Motor Coach (Thor) is recalling various 2003-2018 recreational vehicles, equipped with Kidde Plastic-Handle or Push Button 'Pindicator' Fire Extinguishers. See a list of the affected trailer models at: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17V758-5764.pdf. These extinguishers may become clogged, preventing the extinguisher from discharging as expected or excessive force may be needed to activate the extinguisher. Additionally, in certain models, the nozzle may detach from the valve assembly with enough force that it could cause injury and also render the product inoperable. For a full list of the affected fire extinguisher models visit: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17E062-5427.pdf
The risk: In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury.
The remedy: Thor will notify owners, instructing them to contact Kidde for a replacement fire extinguisher, free of charge. The recall began on January 15, 2018. Owners may contact Thor customer service at 1-877-500-1020, or Kidde customer service toll-free at 1-855-262-3540, or online at www.kidde.com and click on "Product Safety Recall" for more information.
Thor Motor CoachView on NHTSA.gov
14V695000

EQUIPMENT:RECREATIONAL VEHICLE/TRAILER

Nov 3, 2014
215 units potentially affected
The defect: Thor Motor Coach (Thor) is recalling certain model year 2015 Four Winds 5000, Hurricane, Miramar, Chateau Citation, Chateau, Four Winds Siesta, Windsport, and Freedom Elite motorhomes manufactured August 7, 2014, to October 17, 2014. The affected motorhomes have awnings whose mounting brackets may crack, and the awnings may fall.
The risk: If an awning falls, there is an increased risk of injury to anyone under the awning.
The remedy: Thor has notified owners, and dealers will replace the defective mounting brackets, free of charge. The recall began on November 10, 2014. Owners may contact Thor customer service at 1-877-855-2867. Thor's number for this recall is RC000095.
Thor Motor CoachManufacturer number RC000095View on NHTSA.gov

Safety investigations

NHTSA inquiries naming this vehicle. An investigation is not a finding of a defect.

PE20021ClosedPreliminary Evaluation

Trimark 060-1650 Door Latch Failures

Opened Nov 23, 2020
Closed Dec 13, 2024

On November 23, 2020, the Office of Defects Investigation (ODI) opened PE20021 to investigate allegations of inoperative Trimark THP 060-1650 door lock/latches originally equipped on model years (MY) 2015-2017 Class A and Class C motorhomes.ODI received forty-six Vehicle Owner’s Questionnaires (VOQs) describing consumers being locked in or out of their vehicles.The door latch, containing a die-cast zinc plunger, was produced by Equality during calendar years 2014-2016. The die-cast may become porous and brittle over time and can break without warning, causing the vehicle owner to be unable to open the recreational vehicle door equipped with the latch.If the motorhome does not have any other doors such as some Class A models, occupants could be trapped inside, needing to climb out using the emergency exits. If locked out, owners would be unable to easily get in and retrieve children and pets. ODI analyzed the data provided by Trimark in response to its January 27, 2021 information request letter.Although an elevated failure rate was evident on a specific combination of plunger bolt, door lock/latch assembly and door, the data showed that most failures occurred within the first two years of service on the affected 2015-2017 vehicles.This data suggests that component failures generally would have already occurred.Further, ODI data reflects a downward trend in complaints after calendar year 2018 and for post- MY 2016 vehicles.This downward trend may be attributed Trimark's actions in 2016 such as changes in the manufacturing process of its zinc plunger component for the relevant population and its 2016 decision to switch to a steel plunger. In view of the nature of early-life failure, and failure rate trending downward for model years 2017 and newer, this Preliminary Evaluation (PE) is closed.  The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The Agency reserves the right to take additional action if warranted by future circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.

EQUIPMENT

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

Driver assistanceElectrical
Filed Jul 20, 2020

THE MERCEDES BENZ THOR MOTOR COACH SUDDENLY WENT LIMP (WOULDN'T GO HIGHER THAN FIRST GEAR OR FASTER THAN ABOUT 10-15 MPH). THE YELLOW ESP, ABS AND ASR/BAS INDICATOR LAMP LIT WHILE THE ENGINE WAS RUNNING, EVEN WHEN IT WAS STATIONARY. CRUISE CONTROL BECAME INACTIVE. THE COACH'S OPERATING MANUAL SUGGESTED TO NOT DRIVE THE VEHICLE AS IT COULD RESULT IN AN ACCIDENT. AFTER RESEARCHING MORE ON THE TOPIC, WE FOUND THAT IT'S A PROBLEM THAT MANY MERCEDES SPRINTERS HAVE AND MAY BE UNDER EXTENDED FEDERAL WARRANTY.

NHTSA ID
11340363
Incident
Jul 19, 2020
Mileage
25,000 mi
Filed Oct 11, 2017

THE TRIMARK RV DOOR LOCK WITH DEAD BOLT BLACK, 60-1650 BROKE, LOCKING US OUT OF THE RV. HAD TO GET A STATE COP TO HELP US BREAK INTO THE MOTOR HOME. AFTER DOING SOME RESEARCH DISCOVERED THE BOLT IS MADE OF ZINC AND VERY PRONE TO BREAKAGE. I THINK THIS IS A SAFETY ISSUE AND TRIMARK SHOULD HAVE A RECALL ON THESE LOCKS.

NHTSA ID
11032978
Incident
Sep 21, 2017
Mileage
22,000 mi

Manufacturer communications

A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.

RC000218SAOwner

ELECTRICAL SYSTEM

On certain model year 2012– 2018 5-ton Sprinter vehicles that were upfitted into campers or recreational vehicles (“RVs”), one or more of the rear-wheel speed sensors may experience an electrical failure, which potentially could lead to a disablement of the Electronic Stability Control (“ESP”) control unit functions. If ESP control unit functions are disabled, vehicle driving stability may be impacted under certain driving conditions, increasing the risk of a crash. This affects the following Thor Motor Coach products: model year 2013-2020 Chateau Citation & Four Winds Siesta, 2017-2019 Compass, 2017-2020 Four Winds, Gemini, Quantum, Chateau, & Synergy, and 2018-2020 Freedom Elite motorhomes

LTR 120519

EQUIPMENT

This letter stated that there were no Service Bulletins or Technical Service Bulletins issued for the month of November, 2019.

LTR 110317

EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This letter stated that there was one (1) Service Notification issued for the month of October, 2017.

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

Thor Motor Coach Four Winds Siesta by model year
YearComplaintsRecallsInvestigationsIssue Index
2021000—
2020010—
2019000—
2018010—
2017010—
2016010—
2015Viewing221—
2014010—
2013020—
2012010—
2011020—
2010010—
2009010—
2008010—
2007010—
2006010—
2005010—
2004010—

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.