Toyota 2006 Tundra Owner's Manual page 190

If the indicator or buzzer comes on...
(h)
or
(i)
(j)
(k)
(l)
(m)
(n)
(o)
'06 TUNDRA_U (L/O 0508)
Take vehicle to Toyota dealer.
Take vehicle to Toyota dealer.
Close all doors.
Take vehicle to Toyota dealer immediately.
Adjust tire inflation pressure (including spare tire). If the light blinks, contact Toyota
dealer.
Stop and check.
Add washer fluid.
Replace engine oil.
Do this.
2006 TUNDRA from Oct. '06 Prod. (OM34458U)
179