Tire Conditions – Causes and Corrections

Acura Tire Center

TIRE INSPECTION PROCEDURES – It is necessary to examine an entire tire to identify the probable cause for any condition. For example, it is possible that a sidewall bubble may have resulted from a road hazard or improper repair that could only be confirmed by inspecting the interior of the tire.

Note the Tire Identification Code (DOT Serial Number) and all examine all suspicious areas. Begin by inspecting all of the way around the circumference of the tread area looking for punctures, cuts, foreign objects and ay distortion. Then examine the outboard and inboard sidewalls looking for scuffing, cracks, bulges, breaks, cuts or weather cracking. Finally move to the interior of the tire looking for any innnerliner penetrations, cracks, blisters or wrinkling.

TREAD WEAR


Tread Wear Center

Tread Wear

In the center

Probable Cause

  • Tire overinflated
  • Use of over sized tires

Appropriate Correction

  • Confirm cold inflation pressure matches vehicle’s recommended pressures
  • Confirm appropriate rim width and evaluate alternative tire pressures
Tread Wear Shoulders

Tread Wear

On both shoulders

Probable Cause

  • Tire under inflated
  • Vehicle overloaded

Appropriate Correction

  • Confirm cold inflation pressure matches vehicle’s recommended pressures
  • Confirm load being carried is within vehicle specifications, reduce as necessary
Tread Wear One Shoulder

Tread Wear

On one shoulders

Probable Cause

  • Wheel alignment does not match actual driving conditions
  • Worn of damaged steering/suspension parts

Appropriate Correction

  • Set alignment to most appropriate angles within vehicle’s approved range
  • Replace worn or bent parts and align
Tread Wear Heel_Toe

Tread Wear

Heel and Toe Block Wear

Probable Cause

  • Insufficient tire rotation for driving conditions
  • Tires under inflated, increasing drag and wear

Appropriate Correction

  • Rotate tires more frequently following vehicle’s approved pattern
  • Confirm cold inflation pressure matches vehicle’s recommended pressures
Tread Wear Irregular Cupping

Tread Wear

Irregular Cupping

Probable Cause

  • Loose steering or suspension components
  • Tire and wheels out of balance

Appropriate Correction

  • Replace worn struts/shocks and other steering/suspension parts and align
  • Correct balance of tires and wheels

SIDEWALL WEAR


Sidewall Split

Sidewall

Circumferential Split/Star

Probable Cause

  • Impact brake from road hazard or pothole
  • Tire sidewall pinched between road and wheel

Appropriate Correction

  • Dismount tire and inspect for interior damage, replace tire if damage found
  • Determine if wheel is bent by inspecting for runout, replace wheel if damage is found
Sidewall Bubble

Sidewall

Bubble/Bulge

Probable Cause

  • Tire sidewall pinched between road and wheel
  • Components contaminated during manufacturing

Appropriate Correction

  • Dismount tire and inspect, tire manufacturer’s warranty applies if no interior damage is found
  • Dismount tire and inspect, interior damage indicates road hazard
Sidewall Cracking

Sidewall

Ozone/Weather Cracking

Probable Cause

  • Frequent exposer to direct sun and hot temperatures
  • Tires exposed to ozone or harsh chemicals

Appropriate Correction

  • Evaluate service conditions and attempt to minimize exposure to sun and heat
  • Attempt to keep tires away from sources of ozone and chemical exposure
Sidewall Abrasion

Sidewall

Abrasion of Both Sidewalls

Probable Cause

  • Driven on when extremely low on air
  • Driven on when flat

Appropriate Correction

  • Dismount tire and inspect for interior damage, replace tire if damage is found