Honda CR-V 2021 Owner's Manual page 627

uuIf a Tire Goes FlatuChanging a Flat Tire
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TPMS and the Compact Spare Tire
If you replace a flat tire with the spare tire, the low tire pressure/TPMS indicator
comes on while you are driving. After driving for a few miles (kilometers), the
indicator will start blinking for a short time and then stay on. Tire Pressures Low
appears on the driver information interface, but this is normal.
Calibrate the TPMS when you replace the tire with a specified regular tire.
2 TPMS Calibration P. 529
625