The tire pressure number is printed on a sticker inside your driver's door jamb, not on the tire itself

The number on the side of your tire — the one that says something like "Max Pressure 51 PSI" — is the maximum the tire can safely hold, not the pressure your car needs. Your car's correct pressure is lower, and it lives on a white or silver sticker on the inside of your driver's side door, where the door latches. Open the door fully and look at the frame itself, not the door panel. The sticker shows two pressures: one for the front tires and one for the rear (they are often different).

This sticker is the only number that matters for your driving. It accounts for your car's weight, suspension, and how the manufacturer tested the vehicle. Using the tire's maximum pressure instead will give you a harsh ride, faster tire wear, and worse fuel economy.

Key Takeaways

  • Your car's correct tire pressure is on a sticker inside the driver's door jamb, not printed on the tire itself.
  • The number on the tire sidewall is the maximum pressure the tire can hold, which is higher than what your car needs.
  • The door jamb sticker usually lists two different pressures — one for front tires and one for rear tires.
  • Check the pressure when the tires are cold, meaning the car has been parked for at least three hours or driven less than a mile at low speed.

How to read the door jamb sticker

Open your driver's side door all the way. Look at the vertical frame where the door closes — not the inside of the door itself. You will see a white or silver sticker, usually about the size of a credit card. It has your car's tire pressure printed on it, along with other information like load limits.

The sticker typically shows "Front" and "Rear" pressures in PSI (pounds per square inch). Write these numbers down or take a photo with your phone. Some cars have the same pressure front and rear; others differ by 2 to 4 PSI. Both numbers are correct — the manufacturer chose them for how your specific car handles and wears tires.

If you cannot find the sticker on the driver's door, check the passenger door jamb, the fuel door inside panel, or your owner's manual. The manual always lists the pressures in a table, usually in the tire or maintenance section.

Why the tire sidewall number is not the right one

Every tire has a number printed on its sidewall that says "Max Pressure" followed by a PSI figure — often 44, 48, 51, or higher. This is the absolute maximum pressure the tire can safely contain without risking a blowout. It is not a recommendation; it is a safety ceiling.

Your car's door jamb sticker is always lower than the tire's maximum because your vehicle was engineered to run at a specific pressure that balances comfort, handling, fuel economy, and tire life. Running at the tire's maximum pressure will make your ride feel bouncy and harsh, cause the center of the tire to wear faster than the edges, and reduce your gas mileage.

When to check tire pressure and what "cold" means

Check your tire pressure when the tires are cold — meaning the car has been parked for at least three hours, or you have driven less than a mile at low speed. Driving heats the tires, which increases the air pressure inside them by 2 to 4 PSI. If you check after driving, you will get a reading that is higher than the true pressure, and you may over-inflate.

The best time to check is in the morning before you drive, or after the car has sat in a parking lot for several hours. If you must check after driving, wait at least 30 minutes for the tires to cool, and remember that the reading will still be slightly high.

Where to find the pressure if you have lost the sticker

If your door jamb sticker is missing, faded, or unreadable, your owner's manual is the next source. Open the manual and search the index for "tire pressure" or "inflation." The pressures are usually listed in a table in the tire maintenance or specifications section, and they are the same numbers that were on the sticker.

You can also search online for your car's year, make, and model plus "tire pressure" — most manufacturer websites and tire retailers list this information. Call your car's dealership with your vehicle identification number (VIN), and they can tell you the pressures over the phone. The VIN is on your registration, insurance card, or the dashboard on the driver's side.

What to do once you have the number

Once you know the correct pressure, use a tire pressure gauge to check each tire. Gauges are inexpensive — digital ones cost $10 to $20 — and are sold at auto parts stores, gas stations, and online. Remove the valve cap on each tire, press the gauge onto the valve stem, and read the number. Do this for all four tires, including the spare if your car has a full-size spare.

If any tire is more than 2 PSI below the target, add air at a gas station or tire shop. If any tire is more than 2 PSI above the target, let a small amount of air out by pressing the valve stem with a small tool. Check the pressure again after adjusting. Most cars need a tire pressure check once a month and again before long trips.

Frequently Asked Questions

Is the pressure the same for all four tires?

Not always. Many cars have one pressure for the front tires and a different pressure for the rear tires — the rear is often 2 to 4 PSI higher. Your door jamb sticker shows both numbers clearly labeled. Always use the correct pressure for each position.

What if I accidentally inflated to the tire's maximum pressure?

Let air out until you reach the correct pressure on your door jamb sticker. You have not damaged the tire. Driving at maximum pressure for a short time will not cause a blowout, but it will make the ride harsh and cause uneven wear if you continue. Adjust it back to the correct pressure as soon as you can.

Do I need to check the pressure if my car has a tire pressure monitoring system?

The monitoring system alerts you when pressure drops significantly — usually 25% below the target — but it does not replace a manual check. Check your tires monthly anyway, because the system may not catch a slow leak or a tire that is 5 to 10 PSI low but not low enough to trigger the warning light.

Can I use a different pressure in winter or summer?

No. Use the pressure on your door jamb sticker year-round. Cold weather naturally lowers tire pressure, so you may need to add air in winter, but the target number stays the same. The manufacturer already accounted for temperature changes when they set the pressure.