Toyota 2007 Matrix Owner's Manual page 216

All season tires, however, do not have
adequate traction performance
compared with snow tires in heavy or
loose snow. Also, all season tires fall
short in acceleration and handling
performance compared with summer
tires in highway driving.
The details about how to distinguish
summer tires from all season tires are
described on page 192.
CAUTION
D Do not mix summer and all sea-
son tires on your vehicle as
this can cause dangerous han-
dling characteristics, resulting
in loss of control.
D Do not use tire other than the
manufacturer's designated
tires, and never mix tires or
wheels of the sizes different
from the originals.
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