What should tire pressure be on a Lexus Nx 300?
The typical cold tire pressure for a Lexus NX 300 is 33 psi for all four tires. Always verify the exact figure on your vehicle’s door jamb placard for your model year and wheel/tire size, as it can vary with trim and options.
Understanding the official specification
Most NX 300 models list cold tire pressure as the recommended operating pressure when tires are cold, before driving. This ensures accuracy since driving heats tires and increases pressure.
Where to confirm the number
Use these official sources to confirm your NX 300’s exact tire pressure specification:
- Driver-side door jamb placard indicating front and rear cold pressures by tire size
- Owner’s manual section on tires and inflation for general guidelines
- Tire sidewall showing maximum allowable pressure (not the operating pressure)
Note: Wheel size and model year can affect the recommended pressures; rely on the placard for accuracy.
How to check and maintain tire pressure
Follow these steps to ensure you’re running at the correct cold pressure and to maintain tire health, safety, and efficiency.
- Check tires when they are cold, ideally after the car has been stationary for several hours or before driving.
- Use a trusted tire gauge to measure the pressure on each tire, including the spare if applicable.
- Inflate or deflate to match the number on the door jamb placard; recheck after adjustments.
- Reinstall valve caps and check again after driving a short distance to account for heat.
Maintaining the recommended pressure improves fuel economy, tire wear, and cornering feel. If in doubt, consult a Lexus dealer or tire specialist.
Considerations for load, season, and trims
Actual pressures can vary with payload, driving conditions, and wheel size. Some NX 300 trims with larger wheels or winter tires may have slight deviations from the base 33 psi figure; always revert to the placard for the precise value and adjust within the recommended range for heavy loads or extreme temperatures.
Summary
For most Lexus NX 300 models, aim for a cold tire pressure of 33 psi across all four tires, verified by the door placard. Check regularly, especially with seasonal changes or added loads, and adjust as needed to maintain safety, handling, and tire longevity.
