Low tires wear faster, handle worse and cost you fuel. Cold weather drops pressure too, so check it as the seasons change.
Difficulty: Easy. Plan on 10 min.
Safety: Never inflate past the maximum pressure printed on the tire sidewall.
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Never inflate past the maximum pressure printed on the tire sidewall.
Check when the tires are cold: before driving, or after the car has sat a few hours.
Find the correct pressure on the sticker inside the driver's door jamb. The number on the tire itself is a maximum, not the target.
Remove the valve cap, press the gauge on firmly, and read it.
Add air to reach the door-jamb number and recheck.
Don't forget the spare if your car has one.
Nice work. A new fix shows up every day, and the Fix Ladder has step-by-step guides for common home repairs.