457
4-3. Do-it-yourself maintenance
4
Mainten
ance
an
d
ca
re
SEQUOIA_U_(L/O_0804)
n
Replacing tires and wheels
If the ID code of the tire pressure warning valve and transmitter is not
registered, the tire pressure warning system will not work properly. After
driving for about 20 minutes, the tire pressure warning light comes on
after blinking for 1 minute to indicate a system malfunction.
n
Tire life
Any tire over 6 years old must be checked by a qualified technician even
if they have seldom or never been used or damage is not obvious.
n
If the tread wears down below 0.16 in. (4 mm) on snow tires
The effectiveness of snow tires is lost.
n
Low profile tires
Generally, low profile tires will wear more rapidly and tire grip perfor-
mance will be reduced on snowy and/or icy roads when compared to
standard tires. Be sure to use snow tires or snow chains on snowy and/
or icy roads and drive carefully at a speed appropriate for road and
weather conditions.
n
Maximum load of tire
Check that the maximum load of the replaced tire is greater than 1/2 of
the Gross Axle Weight Ratings (GAWR) of either the front axle or the
rear axle, whichever is greater.
As for the maximum load of the tire, see the load limit at maximum cold
tire inflation pressure mentioned on the sidewall of the tire, and as for the
Gross Axle Weight Ratings (GAWR), see the Certification Label.
(
→
P. 461, 558).
n
Tire types
1 Summer tires
Summer tires are high-speed performance tires best suited to highway
driving under dry conditions. Since summer tires do not have the same
traction performance as snow tires, summer tires are inadequate for
driving on snow-covered or icy roads. For driving on snow-covered
roads or icy roads, the use of snow tires is recommended. When
installing snow tires, be sure to replace all four tires.
SEQUOIA_U.book Page 457 Friday, January 25, 2008 11:27 AM
Содержание 2008 SEQUOIA
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