Toyota 2007 4runner Owner's Manual page 260

06 06.07
If the indicator or buzzer comes on...
(h)
or
(i)
(j)
(k)
(l)
(m)
(n)
148
Replace engine oil.
Take vehicle to Toyota dealer. If brake system warning light is also on, stop
immediately and contact Toyota dealer.
Take vehicle to Toyota dealer.
Close all side doors and back door.
Take vehicle to Toyota dealer immediately.
Stop and check.
Adjust tire pressure. If the light remains, contact Toyota dealer.
2007 4Runner from Aug. '06 Prod. (OM35866U)
Do this.