RecallRadar

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2021 Thor Motor Coach Ace Recalls & Complaints

1

open safety recall on record

Serious

6 owner complaints filed · Severity Index 0.00 · updated 2026-08-07

The recalls

Serious20V339000

Visibility:Glass, Side/Rear

If the window glass detaches while the vehicle is moving it could become a projectile, raises the risk of a crash.

Remedy & full details

TMC will notify owners, and dealers will inspect the frameless windows for proper adhesive bond strength, replacing the windows as necessary, free of charge. The recall began July 10, 2020. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000192.

Thor Motor Coach (TMC) is recalling certain 2020-2021 ACE, 2021 Four Winds and 2020 Gemini, Axis, Compass, Delano, Windsport, Hurricane, Outlaw, and Vegas motorhomes. The adhesive bond between the glass and the metal hinge frame of the frameless windows may fail which would then allow the glass to detach and fall out.

Complaint volume

6 this model-year 7 median, same year

Volume alone is not a fault rate — popular vehicles attract more reports. Read it next to the severity mix below.

What owners reported happened

0Crashes
0Fires
0Injuries
0Deaths

Across 6 complaints. Severity Index 0.00.

Severity Index weights each complaint's reported outcome (death ×10, injury ×4, fire ×3, crash ×2) and divides by total complaints. It measures how severe reports are, not how often faults occur.

What owners report most

Electrical System2 · 33%Suspension1 · 17%Power Train1 · 17%Engine1 · 17%Vehicle Speed Control1 · 17%
  1. Electrical System — 2 reports
  2. Suspension — 1 reports
  3. Power Train — 1 reports
  4. Engine — 1 reports
  5. Vehicle Speed Control — 1 reports

What to do

  1. Find your 17-character VIN on the driver's door jamb or the base of the windscreen.
  2. Check it against NHTSA's official lookup at nhtsa.gov/recalls — the authoritative record for your exact car.
  3. Book the repair with any franchised dealer. Safety recall work is free, with no time limit and regardless of who owns the car now.

Other model years

2013 (1) · 2014 (1) · 2015 (1) · 2016 (1) · 2017 (2) · 2018 (2) · 2019 · 2021 · 2022 (1)

Numbers in brackets are open recall campaigns for that year.

Questions

Does an open recall mean the car is unsafe to drive?

Not usually. NHTSA issues a "do not drive" or "park outside" advisory when a defect is dangerous enough to keep you out of the car — those are flagged Critical above. Everything else should be repaired promptly but is not an immediate stop-driving order.

Do I pay for recall repairs?

No. Federal law requires the manufacturer to fix a safety recall free of charge, including parts and labour, whether or not you are the original owner.

Why are there complaints but no recalls?

Complaints are unverified reports filed by owners. They can prompt an investigation, but many never become recalls — either the fault isn't safety-related or it isn't widespread.

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