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Helen Petrauskas Vice President Environmental & Safety Engineering Actions We Have Taken Replaced tires in Middle East (July 1999), Southeast Asia (Feb 2000), and Venezuela and adjacent countries (May 2000) At the same time took action to determine if same issue existed in North America

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Helen petrauskas vice president environmental safety engineering l.jpg

Helen PetrauskasVice PresidentEnvironmental & Safety Engineering


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Actions We Have Taken

  • Replaced tires in Middle East (July 1999), Southeast Asia (Feb 2000), and Venezuela and adjacent countries (May 2000)

  • At the same time took action to determine if same issue existed in North America

    • Requested Firestone to check U.S. database and perform tire testing

    • Reviewed NHTSA hot line, as well as all internal Ford databases

    • With Firestone, undertook study of worn tires from U.S. Southwest

  • Found no evidence of tread separation


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Actions We Have Taken

  • Requested and analyzed data from Firestone

  • Supported Firestone recall decision


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Actions We Have Taken

  • The tire industry is increasing production of 15-inch tires by more than 250,000 tires per month by the end of September

  • Engaged 3,100 Ford and Lincoln-Mercury dealers to perform tire replacements

  • Suspended Explorer and Ranger production at three assembly plants: Edison, St. Louis, and Twin Cities

  • Looking at increased use of 16-inch tires to free up 15-inch tires


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Actions We Have Taken

  • Major effort to communicate with customers

    • Opened additional call center

    • Website

    • Series of newspaper ads

  • Full cooperation and disclosure to NHTSA


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Tom BaughmanEngineering DirectorNorth American Truck


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Claims for Firestone Tires by Tire Size

Firestone Property Damage and Injury Claims and Lawsuits Submitted Pursuant to NHTSA Inquiry

Tire Sizes with More Than 30 Claims

Tires with Ford Original Equipment Application Noted


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Claims for Firestone P235/75R15 ATX and Wilderness Tires by Type of Claim

Firestone Claims Data


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Tread Separation Claims for Firestone Tires by Tire Size

Firestone Claims Data

Tire Sizes with at least 5 Tread Separation Claims

Tires with Ford Original Equipment Application Noted


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Tread Separation Claims for Firestone P235/75R15 ATX and Wilderness Tires by State

Firestone Claims Data


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Tread Separation Claims Rate for Firestone P235/75R15ATX and Wilderness Tires for 1996 Tire Production Year

Firestone Claims and Production Data


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Tread Separation Claims Rate for Firestone P235/75R15 Wilderness Tires by Tire Production Year and Plant

Firestone Claims and Production Data


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Tread Separation Claims Rate for Firestone P235/75R15 ATX Wilderness Tires by Tire Production Year and Plantby Time in Service at Claim, Tire Production Year, and Plant

Firestone Claims and Production Data


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Tread Separation Claims Rate for Firestone P235/75R15 Wildernessby Time in Service at Claim, Tire Production Year, and Plant

Firestone Claims and Production Data


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Tread Separation Claims Rate for Firestone P235/75R15 Wildernessby Time in Service at Claim, Tire Production Year, and Plant

Firestone Claims and Production Data


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Tread Separation Claims Rate for WildernessFirestone 15-inch and 16-inch Tires Production Years 1995-1999 and Claims Years 1995-1999

* P235/75R15 Wilderness AT 15-inch production began in 1996


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Competitive SUVs and Pickup Trucks Wildernessat 26 psi Recommended Inflation Pressure


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Passenger Car and Light Truck WildernessOccupant Fatality Rates

Source: Department of Transportation Data


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Fatality Rate Comparison Wilderness

Source: Department of Transportation Data


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Fatalities by Crash Mode Wilderness

Passenger Cars

Compact SUVs

Source: Department of Transportation Data


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Ford Internal Safety Guidelines Wilderness

  • Frontal and Offset Frontal Impact

  • Resistance to Rollover

  • Occupant Restraints

  • Interior Side Impact Protection

  • Side Intrusion

  • Dynamic Side Impact

  • Rear Impact

  • Roof Crush Resistance

  • ABS

  • Fuel System Performance


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Fatality Rate Comparison Wilderness

Source: Department of Transportation Data


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Fatality Rate Comparison Wilderness

Source: Department of Transportation Data


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Tire Capacity WildernessExplorer 4x4 5.0L, P235/75R15 Tire at 26 psi


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Load Carrying Capacity by Axle WildernessExplorer 4x4 5.0L, P235/75R15 Tire at 26 psi



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TRA Range * Wilderness

26 Optimum

acceptable

Lower

Higher

20

26

30

35

Tire Design Tradeoffs

Higher

B

Implications / Desirability

C

A

Lower

Pressure (psi)

A High speed durability, load capacity, fuel economy traction & seat on rim

B Ride, comfort, noise, vibration & harshness

C Stability & handling

* P235/75 R15


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