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Vehicle recall 18V507000 · August 2, 2018

Thor Motor Coach Venetian and Thor Aria

The brake caliper mounting bolts on these vehicles may be insufficiently tightened, allowing the bolts to loosen.

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

Summary
Thor Motor Coach (TMC) is recalling certain 2017-2018 Thor Aria motorhomes and 2017-2019 Thor Venetian motorhomes. The brake caliper mounting bolts on these vehicles may be insufficiently tightened, allowing the bolts to loosen.
Consequence
If the brake caliper mounting bolts loosen, braking performance may be reduced, increasing the risk of a crash.
Remedy
TMC will notify owners, and authorized Daimler Trucks service centers will inspect the caliper mounting bolts and tighten them to the proper specification, free of charge. The recall began September 4, 2018. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000159.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Recall details

NHTSA campaign
18V507000
Reported to NHTSA
August 2, 2018
Filed by
Thor Motor Coach
Manufacturer campaign
RC000159
Owner notification
September 4, 2018
Vehicles potentially affected
175
Initiated by
the manufacturer
Components
Service brakes, hydraulic › Foundation components › Disc › Caliper
Recall 18V507000 on nhtsa.gov, with the manufacturer’s documents

Vehicles covered

As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.

Has your Thor been repaired?

Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.

NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Thor dealer can also check your VIN. Recall repairs are free.