Uniform Tire Quality Grading System (UTQGS)
This information relates to the tire grading system developed by the U.S. National Highway
Traffic Safety Administration for grading tires by tread wear, traction, and temperature
performance.
▼ Tr e a d We a r
The tread wear grade is a comparative rating based on the wear
rate of the tire when tested
under controlled conditions on a specified government test cour se.
For example, a tire graded 150 would wear one-and-a-half times as well on the government
course as a tire graded 100.
The relative performance of tires depends upon the actual condi tions of their use, however,
and may depart significantly from the norm because of variation s in driving habits, service
practices and differences in ro ad characteristics and climate.
▼Traction-AA, A, B, C
The traction grades, from highest
to lowest, are AA, A, B, and C. These grades represent the
tire's ability to stop on wet pavement as measured under contro lled conditions on specified
government test surfaces of asphalt and concrete. A tire marked C may have poor traction
performance.
WARNING
The traction grade assigned to this tire is based on braking (straight ahead) traction tests and
does not include acceleration cornering (turning), hydroplaning, or peak traction
characteristics.
▼ Temperature-A, B, C
The temperature grades A (the hi
ghest), B, and C, represent the tire's resistance to the
generation of heat and its ability to dissipate heat when teste d under controlled conditions
on a specified indoor laboratory test wheel.
Sustained high temperature can cause the material of the tire to degenerate and reduce tire
life, and excessive temperatures can lead to sudden tire failure.
Grade C corresponds to a level of performance which all passeng er vehicle tires must meet
under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher
levels of performance on the labo ratory test wheel than the minimum required by law.
Customer Information and Reporting Safety Defects
Uniform Tire Quality G rading System (UTQGS)
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Index
A
Accessory Socket.............................. 5-60
Active Driving Display..................... 4-45
Adaptive Front Lighting System
(AFS)............................................... 4-105
Add-On Non-Genuine Parts and
Accessories........................................ 8-19
Advanced Key
Advanced keyless entry system... 3-10
Operational range........................ 3-11
Advanced Key Removed from Vehicle
Warning Beep.................................... 7-46
Advanced Smart City Brake Support
(Advanced SCBS)........................... 4-157
Collision warning.... .................. 4-159
Stopping the Advanced Smart City
Brake Support (Advanced SCBS)
system operation........................ 4-159
Air Bag Systems............................... 2-69
Air Bag/Seat Belt Pr etensioner System
Warning Beep.................................... 7-45
Antilock Brake System (ABS).......... 4-90
Armrest Box...................................... 5-71
AUTOHOLD..................................... 4-84
AUTOHOLD Warning Beep.............7-47
Automatic Transaxle......................... 4-47 Active Adaptive Shift (AAS)...... 4-49
Automatic transaxle controls....... 4-47
Direct mode................................. 4-56
Driving tips..................................4-57
Manual shift mode.......................4-50
Shift-lock system......................... 4-48
Transaxle ranges.......................... 4-48
B
Battery............................................... 6-30Maintenance.................................6-32
Replacement................................ 6-32
Specifications.................................9-4
Battery Runs Out.............................. 7-19
Jump-starting............................... 7-19
Blind Spot Monitoring (BSM)........ 4-109 Canceling operation of Blind Spot
Monitoring (BSM)..................... 4-113
Blind Spot Monitoring (BSM) Warning
Beep...................................................7-48
Body Lubrication.............................. 6-25
Bottle Holder..................................... 5-69
Brakes
Brake assist.................................. 4-83
Electric parking brake (EPB)...... 4-80
Foot brake....................................4-80
Pad wear indicator....................... 4-83
Warning light............................... 4-82
Break-In Period................................. 3-47
C
Capacities............................................ 9-5
Carbon Monoxide......... .................... 3-29
Cell Phones....................................... 8-20
Center Console.................................. 5-70
Child Restraint Categories of child-restraint
systems.........................................2-49
Child-restraint precautions.......... 2-44
Child-restraint system
installation................................... 2-49
Child-restraint system suitability for
various seat positions table..........2-51
Installing child-restraint
systems.........................................2-55
ISOFIX child-restraint systems
(Mexico)...................................... 2-64
LATCH child-restraint systems
(Except Mexico).......................... 2-64
Child Safety Locks for Rear Doors... 3-18
Climate Control System...................... 5-2 Dual-zone automatic climate
control............................................ 5-5
10-2
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