2019 Thor Motor Coach Quantum Recalls

Recalls on record Updated July 2026

The 2019 Thor Motor Coach Quantum has 3 NHTSA recall campaigns affecting an estimated 889 vehicles. Recall repairs are always free at any authorized dealer. 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.

EXTERIOR LIGHTING 19V215000 2019-03-20 97 affected
Defect

Thor Motor Coach (TMC) is recalling certain 2018-2019 Quantum RW28 motorhomes. The vehicles may be missing the mid-ship marker lights. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices, and Associated Equipment."

Consequence

Without mid-ship marker lights, other drivers may underestimate the length of the vehicle, increasing the risk of crash.

Remedy

TMC will notify owners, and dealers will inspect and install mid-ship marker lights, as needed, free of charge. The recall began on April 25, 2019. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000167.

SUSPENSION 18V385000 2018-06-08 691 affected
Defect

Thor Motor Coach (TMC) is recalling certain 2019 Thor Four Winds, Chateau, Freedom Elite, Majestic, Outlaw, Quantum and Vegas motorhomes built on modified Ford E-450 chassis. The U-bolts on the rear axle that hold the leaf spring and rear axle together may have been insufficiently tightened.

Consequence

The loose U-bolts may further loosen or break allowing the axle to separate and cause a loss of control, increasing the risk of a crash.

Remedy

TMC has notified owners, and dealers will tighten U-bolts to the proper torque, free of charge. The recall began on June 22, 2018. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000156.

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 2019 Thor Motor Coach Quantum as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.