Tires; tires: sidewall (Big O, Hercules and TBC and 6 more)
Tire recall 21T-002. NHTSA received Cooper Tire & Rubber Co.’s report on Feb 19, 2021.
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The short answer
NHTSA received Cooper Tire & Rubber Co.’s report on Feb 19, 2021. Copied from NHTSA on Oct 28, 2026.
Every line below is in NHTSA’s own words, with its source beside it.
What’s wrong with it?
A sidewall separation may cause the tire to rapidly deflate, increasing the risk of a crash.
Cooper Tire & Rubber Co.
(Cooper Tire) is recalling certain Discoverer, Evolution, Courser, Deegan, Adventurer, Hercules, Back Country, Multi-Mile Wild Country and Big O brand tires.
The tires may develop a bulge or separation in the sidewall.
NHTSA, Recalls flat file. Released Oct 28, 2026. Updated daily.
- NHTSA’s part: Tires.
- NHTSA’s part: Tires: sidewall.
What should you do?
Cooper Tire will notify owners, and dealers will replace affected tires, free of charge. The recall is expected to begin March 25, 2021. Owners may contact Cooper Tire customer service at 1-800-854-6288. Cooper Tire’s number for this recall is 178.
NHTSA, Recalls flat file. Released Oct 28, 2026. Updated daily.
- How to reach the firm: 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.
Which ones are recalled?
NHTSA counts 430,298 tires potentially involved, across everything this recall names.
NHTSA, Recalls flat file. Released Oct 28, 2026. Updated daily.
- Big O AT/T Big FootNHTSA gives no dates made
- Hercules Terra Trac A/T IINHTSA gives no dates made
- TBC Multi-Mile Wild Country XTX Sport 4SNHTSA gives no dates made
- Discount Tire Discoverer ATPNHTSA gives no dates made
- PEP Boys Adventurer A/TNHTSA gives no dates made
- Cooper Discoverer A/T3NHTSA gives no dates made
- Cooper Discoverer AT3 4SNHTSA gives no dates made
- Cooper Evolution H/TNHTSA gives no dates made
- Mastercraft Courser AXTNHTSA gives no dates made
- Mastercraft Courser AXT2NHTSA gives no dates made
- Mickey Thompson Deegan 38 All-TerrainNHTSA gives no dates made
- Mastercraft Courser HSX TourNHTSA gives no dates made
- PEP Boys Adventurer H/TNHTSA gives no dates made
- LES Schwab Back Country QS4 All TerrainNHTSA gives no dates made
- LES Schwab Back Country QS3 Touring HTNHTSA gives no dates made
- Big O Bigfoot A/SNHTSA gives no dates made
- Cooper Discoverer RTXNHTSA gives no dates made
Who is recalling it?
- Made by Cooper Tire & Rubber Co..
NHTSA, Recalls flat file. Released Oct 28, 2026. Updated daily.
What the record doesn’t say
- NHTSA’s recall file doesn’t say whether anyone was hurt.
- Which tires, by their DOT codes: the range is in the recall’s report on NHTSA’s site, not in this file. Check the code on your tire’s sidewall against it.
- How many have been returned or fixed isn’t in the notice.
Hearth Record wrote these lines.
Sources
-
National Highway Traffic Safety Administration, Recalls flat file (FLAT_RCL_POST_2010).
Released Oct 28, 2026 and checked Oct 28, 2026. Updated daily. Public domain (U.S. Government work).
Vehicle, car seat, tire and vehicle equipment recalls, owner complaints and crash ratings are from the National Highway Traffic Safety Administration (NHTSA). Copied on Oct 28, 2026.