Style chooser

hi sifu. here my situation >>> after i wash my whole car ( underneath of car also ). when i leave it my car for 3 or 2 days ( never moved ).... n when i want to take out my car, suddenly my car rear wheel...locked n static... after a while i throttle my reverse gear vroommm vroommm.. then only my wira can move out... n can roll on the road as usual. wat the hell is this??? awwww

What problem is this?? plsss help me....coz later on i wan...