On all four tires pressure was low and tread was separating. Consumer checked right rear tire, and there was tread seperation as well. Firestone, firehawk gta-02, size205/60R15 on a 1999, Mercury, Cougar. *akall four tires had sidewall separation at the same time, the vehicles rear tire was flat, the front tire was going flat and the passenger side tires were all low, upon closer examination the sidewalls on all 4 tires had a split in the rubber that was perfectly circular and on the flattest tire the rubber had split and was gaping open. The separation is thin and smooth-edged not torn(Firestone firehawk gta, P205/55R16). Nlm

- Santa Clarita, CA, USA

Vehicle started shaking, the tires were defective, the dealer called it ply-seperation. Two days later another tire had the same problem.

- Spring Valley, WI, USA

At 14,000 miles, mechanic spotted hairline splits on the sidewalls. Tires have been roatated twice..city driving..cost of $4165 to replace..must wait 2 weeks for replacements...mechanic warns against high speed driving...never replaced tires on a car this soon! contacted fs..no answers!!. (tiresize: P215/50R16)( dot number: Tire size: P215/50R16 )

- Park Forest, IL, USA

Two of the Firestone firehawk gta 20-P215/50R16 tires experienced tread separation and blowouts, one incident caused loss of control of the vehicle and hit a curb.

- Dumfries, VA, USA

Tread on tires started to separate from tire had to relace all tires sent Firestone an E-mail they sent back the truck tire recall info did not take to dealer because they would have put firestones back on, I saved one tire that was damaged( dot number: W2un tire size: P205/60ris )

- Torrance, CA, USA

I have had two (2) side wall blowouts on the lower part of the sidewall near the tread. Both incidents were on city streets and there was no evidence of road hazard of any kind. The first incident through the car out of control and into a curb. No other cars were involved. I kept the last tire, however discarded the first.( dot number: Tire size: P215/50 R1 )

- Woodbridge, VA, USA

All four of my tires had the belts showing at 17000 miles. I have put new ones on and they are starting to shake just like the first set that was on the car. I have heard of other complaints on the tires for the Cougar. This is not the only problem. Thank you.( dot number: Tire size: 215/50/16 )

- Bourbon, MO, USA