Tires (Cooper)
Tire recall 77T-023. NHTSA received COOPER TIRE & RUBBER CO.’s report on Sep 7, 1977.
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The short answer
NHTSA received COOPER TIRE & RUBBER CO.’s report on Sep 7, 1977. Copied from NHTSA on Oct 20, 2026.
Every line below is in NHTSA’s own words, with its source beside it.
What’s wrong with it?
The notice gives no hazard in a field of its own.
THE INVOLVED TIRES MAY DEVELOP SEPARATION IN THE LOWER SIDEWALL AREA WHEN RUN IN AN OVERLOADED OR UNDER-INFLATED CONDITION.
THIS CONDITION WILL DEVELOP A VISIBLE CIRCUMFERENTIAL CRACK OR BULGE ABOVE THE RIM FLANGE.
CONTINUED OPERATION MAY CAUSE THE PLY CORDS TO PART AND EXPOSE OR PINCH THE INNER TUBE, POSSIBLY RESULTING IN LOSS OF INFLATING AIR.
NHTSA, Recalls flat file before 2010. Released Oct 20, 2026. Updated daily.
- NHTSA’s part: Tires.
What should you do?
DEALER WILL REPLACE INVOLVED TIRES FREE OF CHARGE WITHIN 60 DAYS OF RECALL NOTIFICATION.
NHTSA, Recalls flat file before 2010. Released Oct 20, 2026. Updated daily.
- How to reach the firm: VEHICLE CATEGORY: TRUCKS.SYSTEM: TIRES; COOPER SRM RADIAL, COOPER XML RADIAL, SUPER LUG RADIAL, ANDSUPER ROAD SERVICE RADIAL, SIZE 10.00-R20.CONSEQUENCES OF DEFECT: RAPID AIR LOSS COULD CAUSE LOSS OF VEHICLE CONTROL ANDAN ACCIDENT.NOTE: PROPER AIR PRESSURES SHOULD BE MAINTAINED AND DRIVING AT HIGHWAY SPEEDSSHOULD BE AVOIDED UNTIL THE TIRES CAN BE REPLACED.DOT ID NUMBERS: UT016 THRU 527.
Which ones are recalled?
NHTSA counts 1,947 tires potentially involved, across everything this recall names.
NHTSA, Recalls flat file before 2010. Released Oct 20, 2026. Updated daily.
- Cooper 1000R20NHTSA gives no dates made
Who is recalling it?
- Made by COOPER TIRE & RUBBER CO..
NHTSA, Recalls flat file before 2010. Released Oct 20, 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
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National Highway Traffic Safety Administration, Recalls flat file before 2010 (FLAT_RCL_PRE_2010).
Released Oct 20, 2026 and checked Oct 20, 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 20, 2026.