That small button with the circular arrow might be the most misunderstood feature in your car. Most drivers either ignore it or leave it on without thinking, not realizing it controls how you breathe, how fast your car cools, and even how alert you feel behind the wheel, but,
Once you understand when to use air recirculation, everything changes—from blocking toxic traffic fumes to cooling your car in half the time. But there’s one hidden mistake almost everyone makes with it that can actually make you tired or even dangerous on long drives… and it’s probably what you’re doing right now, therefore,