2003 Toyota Tacoma Owners Manual - Page 119
2003 Toyota Tacoma Manual
Page 119 highlights
'03 Tacoma U (L/O 0209) Service reminder indicators and warning buzzers If the indicator or buzzer comes on...Do this. If parking brake is off, stop immediately and contact Toyota dealer. (a) (b) (indicator and buzzer) Fasten seat belt. (c) Stop and check. (d) Stop and check. (e) Take vehicle to Toyota dealer. (f) Fill up tank. (g) or Take vehicle to Toyota dealer. 2003 MY TACOMA (OM35800U) 119