Hi,

1. Wheels/sterring vibrate when braking at high speed !!! i know tyres are not balanced...could it be that ???
2. My acceleration and stuff is not too good !!! will an oil change help as that hasnt been done for a year the previous ...shd i go for a tuneup ?? whats involved in that ??
3. My 4ws light sometimes turns on at startup and doesnt turn off until i turn off the car and turn it back on


thanks for all the left