djerms-- 3rd start mode is used wen mejo nasa off road ka.. wen u turn it on ur gear is on 1:1 ratio, meaning naka 3rd gear ka... kaya malakas ang kapit ng tires and ur tires wont just spin around... power mode is an extra power to engine to maximize ur gear speed.. kc db mejo bitin ang auto pag mag overtake ka, u cud use dat but i doubt ull use it parati... malakas naman engine ng dmax...