RecallRepo

2015 Thor Motor Coach Siesta Recalls

Recalls on record Updated July 2026

The 2015 Thor Motor Coach Siesta has 3 NHTSA recall campaigns affecting an estimated 12,954 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 2 complaints with NHTSA, most often about the electrical system. Last updated July 5, 2026.

Recall campaigns

EQUIPMENT 19V714000 2019-10-08 101 affected
Defect

Thor Motor Coach (TMC) is recalling certain 2014 Tuscany 36M, 40E, 2015 Citation 24SL, Siesta 24SL, Axis 25.1 and Vegas 25.1, 2016 Four Winds 31E, 31W, 35SF, Chateau 31E, 31W, Synergy SD24, Citation 24SL, 24SS and Siesta 24SL, 24SS, 2017 Four Winds 31E, 31W, Chateau 31E, 35SD, Citation 24SS and Siesta 24SS, 2018…

Consequence

An inadvertently overloaded motorhome due to an incorrect carrying capacity can increase the risk of a crash.

Remedy

TMC will notify owners, and dealers will issue new OCCC labels with correct seating positions and weight calculations, free of charge. The recall began November 21, 2019. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000176.

EQUIPMENT 15V745000 2015-11-10 12,656 affected
Defect

Thor Motor Coach (Thor) is recalling certain model year 2011-2016 Thor Challenger, Thor Citation, Thor Hurricane, Thor Tuscany, Thor Windsport, 2011-2012 Thor Astoria, Thor Avanti, Thor Chateau, 2011-2014 Thor Daybreak, 2011-2015 Thor Outlaw, Thor Siesta, 2014-2015 Thor Miramar, 2012 Thor Four Winds, 2008-2011 Damon…

Consequence

Unstable entry and exit steps increase the risk of injury.

Remedy

Thor will notify owners, and dealers will install a retainer bracket to reinforce the operating mechanism and replace all of the affected bolts, free of charge. The recall began on January 6, 2016. Owners may contact Thor customer service at 1-877-855-2867. Thor's number for this recall is RC000111.

STRUCTURE 15V191000 2015-03-31 197 affected
Defect

Thor Motor Coach (Thor) is recalling certain model year 2015 Siesta and Citation motorhomes manufactured from September 26, 2014, through February 27, 2015, and built on a Mercedes-Benz Sprinter chassis. In the affected vehicles, the abutting wedge, a component attached to the door jamb to make opening the door…

Consequence

If a vehicle that has an incorrectly installed abutting wedge is involved in a severe frontal crash, a greater force may be necessary to open the doors, increasing the risk of injury.

Remedy

Mercedes-Benz will notify owners on behalf of Thor, and dealers will inspect and, if necessary, correct the installation of the abutting wedge, free of charge. The recall began on March 23, 2015. Owners may contact Thor customer service at 1-877-500-1020 or owners may contact Sprinter Customer Service at…

Complaints by component

ELECTRICAL SYSTEM:WIRING
1
1fires
EQUIPMENT
1
1fires
Total complaints2

What owners report

Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.

“Tl* the contact owns a 2015 thor siesta equipped with a cummins 3.6 kw generator. The contact attempted to start the generator, but was unsuccessful. In addition, there was an abnormal odor in the vehicle prior to the failure. The generator was taken to cummins sales and service (12 integra dr,…”

ELECTRICAL SYSTEM:WIRING · reported 2019-09-25

“Tl* the contact owns a 2015 thor siesta equipped with a cummins 3.6 kw generator. The contact attempted to start the generator, but was unsuccessful. In addition, there was an abnormal odor in the vehicle prior to the failure. The generator was taken to cummins sales and service (12 integra dr,…”

EQUIPMENT · reported 2019-09-25
Sources & methodology

Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2015 Thor Motor Coach Siesta as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.