What is the button on the side of the gear shifter?
What is the button on the side of the gear shifter? In that case, the button you are asking about is the overdrive-off switch. When you press it you should see an indicator illuminate on the dash saying something like "O/D Off". As you accelerate in an automatic, the transmission selects a drive gear based on how much you push the accelerator. How do you change a column shifter in a car? Replace the steering wheel by tapping it with a rubber mallet, then tighten the center bolt and replace the center cap. Locate the shifter linkage under the car...