Hi there! I understand you’re having two issues: first, the MyMazda app is not refreshing when you pull down to refresh, and second, the tire pressure readings you get manually don’t match what the app shows. Let's take these one at a time to get things sorted out for you.

### For the MyMazda app refresh issue:
1. Make sure your phone has a stable internet connection (Wi-Fi or cellular data) because the app needs that to update properly.
2. Try fully closing the app and reopening it rather than just pulling down to refresh.
3. Check if the app has any pending updates in the Windows Store and install those if available.
4. Restart your Windows device, as sometimes a fresh reboot fixes temporary glitches.
5. As a deeper step, if the app is still unresponsive, you could try reinstalling it—uninstall then reinstall from the Windows Store.

### Regarding the inaccurate tire pressure readings:
- The tire pressure monitoring system (TPMS) updates its readings only while the wheels are turning, meaning the car must be driven a short distance before accurate data reaches the app.
- Also, the system provides pressure readings from sensors mounted inside the tires, which can differ from your manual digital gauge, especially since manual checks might be done with the tires cold or warm, affecting pressure.
- Check the tire pressure inside the vehicle's Maintenance Settings screen on the dash if possible, then try refreshing from within the vehicle; this sometimes triggers an updated reading to sync to the app.
- Verify tire pressures are set to the specifications found on your driver's door jamb sticker for accuracy.
- If discrepancies persist, there could be a sensor issue—damaged sensors or a TPMS malfunction can cause inaccurate readings.

As an additional suggestion, a power reset of your vehicle’s system (like disconnecting the battery briefly) has helped some users with app refresh issues, but I recommend trying the app side fixes first.

Would you like me to guide you through any of these steps in detail? Also, do you drive short distances after checking the app readings, or have you noticed if the pressure readings change after driving a bit? That can help pinpoint the issue better.