Best practice when adjusting vehicle controls is to wait until you are stopped or at a red light.

• A. Red light
• B. At any speed
• C. When turning
• D. When stopped or at a red light

Answer: (D)

Adjusting vehicle controls is safest when you can focus fully on driving. Waiting until you’re stopped or at a red light gives you a moment to handle changes without taking your hands off the wheel or your eyes off the road for long. This reduces distractions that can cause you to miss signals, pedestrians, or sudden changes in traffic. Plan ahead: adjust climate, mirrors, seat position, or radio presets only when you’re not moving, so you can resume driving with full attention. If you must adjust something while rolling, keep it brief and return your focus to driving immediately, but the preferred practice is to wait until you’re stopped or at a red light.