What is the recommended tire pressure for a 2022 Hyundai Sonata?

The 2022 Hyundai Sonata uses 35 PSI cold on the front axle and 35 PSI cold on the rear axle. These are the OEM specifications. Always measure tire pressure when the tires are cold — before driving or after sitting for at least 3 hours.

What tire size does the 2022 Hyundai Sonata use?

The standard (base trim) tire size for the 2022 Hyundai Sonata is 235/45R18. Higher trim levels and optional packages may use a different size — check the sticker inside your driver's door for the exact specification for your vehicle.

How do I convert the 2022 Hyundai Sonata tire pressure to bar?

35 PSI = 2.4 bar (front) and 35 PSI = 2.4 bar (rear). In kPa: 241 kPa front and 241 kPa rear. Multiply PSI × 0.0689 to convert to bar.

Why are the front and rear tire pressures the same on the 2022 Hyundai Sonata?

The 2022 Hyundai Sonata uses equal pressure front and rear (35 PSI). The vehicle's weight distribution and symmetric tire sizing mean both axles carry similar loads per tire.

What happens if the 2022 Hyundai Sonata tires are underinflated?

Running 5+ PSI low on the Hyundai Sonata causes uneven shoulder wear, increased rolling resistance (worse fuel economy), higher tire operating temperature, and reduced wet braking performance. In extreme cases, chronic underinflation can cause sidewall failure. Check pressure monthly and always after a large temperature swing.

What do the numbers in 235/45R18 mean on the 2022 Hyundai Sonata?

On the 2022 Hyundai Sonata, 235/45R18 breaks down as: 235 = section width in millimetres (9.25"), 45 = aspect ratio (the sidewall is 45% of the width, so 105.8 mm / 4.16" tall), R = radial construction, and 18 = the wheel diameter in inches.

What is the overall diameter of the 2022 Hyundai Sonata tires?

The 235/45R18 tire on the 2022 Hyundai Sonata has an overall diameter of about 26.33" (669 mm) and a rolling circumference of roughly 82.71", giving about 766 revolutions per mile. Fitting a tire with a different diameter will throw off your speedometer and odometer.

2022 Hyundai Sonata Tire Pressure

OEM cold pressure spec — verified for the 2020–2024 generation.

Recommended cold pressure

Front

35PSI

241 kPa

Rear

35PSI

241 kPa

Tire size

235/45R18

Curb weight

1,510 kg

Front axle

60%

2022 Hyundai Sonata tire size: 235/45R18

The factory (base-trim) tire size for the 2022 Hyundai Sonata is 235/45R18. Here is what that size measures out to in the real world — useful when comparing replacement tires or checking whether a different size will fit.

Section width

235 mm

9.25"

Aspect ratio

45%

105.8 mm sidewall

Wheel diameter

18"

rim

Overall diameter: 26.33"; 669 mm
Sidewall height: 4.16"; 105.8 mm
Circumference: 82.71"; rolling
Revs / mile: 766; approx.

Staying within ±3% of the 26.33" overall diameter keeps your speedometer accurate. A larger diameter reads slower than your true speed; a smaller one reads faster.

Custom adjustment

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Pre-filled with Hyundai Sonata specs. Adjust weight or style below.

Recommended COLD pressure

30 / 22 PSI

Front (cold): 30 PSI(2.07 bar)
Rear (cold): 22 PSI(1.52 bar)
Front (hot est.): 33 PSI
Rear (hot est.): 24.2 PSI

Street setting: balanced for comfort, wear, and fuel economy. Always measure cold.

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FAQ

2022 Hyundai Sonata

What is the recommended tire pressure for a 2022 Hyundai Sonata?: The 2022 Hyundai Sonata uses 35 PSI cold on the front axle and 35 PSI cold on the rear axle. These are the OEM specifications. Always measure tire pressure when the tires are cold — before driving or after sitting for at least 3 hours.
What tire size does the 2022 Hyundai Sonata use?: The standard (base trim) tire size for the 2022 Hyundai Sonata is 235/45R18. Higher trim levels and optional packages may use a different size — check the sticker inside your driver's door for the exact specification for your vehicle.
How do I convert the 2022 Hyundai Sonata tire pressure to bar?: 35 PSI = 2.4 bar (front) and 35 PSI = 2.4 bar (rear). In kPa: 241 kPa front and 241 kPa rear. Multiply PSI × 0.0689 to convert to bar.
Why are the front and rear tire pressures the same on the 2022 Hyundai Sonata?: The 2022 Hyundai Sonata uses equal pressure front and rear (35 PSI). The vehicle's weight distribution and symmetric tire sizing mean both axles carry similar loads per tire.
What happens if the 2022 Hyundai Sonata tires are underinflated?: Running 5+ PSI low on the Hyundai Sonata causes uneven shoulder wear, increased rolling resistance (worse fuel economy), higher tire operating temperature, and reduced wet braking performance. In extreme cases, chronic underinflation can cause sidewall failure. Check pressure monthly and always after a large temperature swing.
What do the numbers in 235/45R18 mean on the 2022 Hyundai Sonata?: On the 2022 Hyundai Sonata, 235/45R18 breaks down as: 235 = section width in millimetres (9.25"), 45 = aspect ratio (the sidewall is 45% of the width, so 105.8 mm / 4.16" tall), R = radial construction, and 18 = the wheel diameter in inches.
What is the overall diameter of the 2022 Hyundai Sonata tires?: The 235/45R18 tire on the 2022 Hyundai Sonata has an overall diameter of about 26.33" (669 mm) and a rolling circumference of roughly 82.71", giving about 766 revolutions per mile. Fitting a tire with a different diameter will throw off your speedometer and odometer.