Acura TLX 2021 Owner's Manual page 601

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), Tire
Pressure Monitor System Problem. Check Tire Pressure. See Your Dealer. will
appear on the multi-information display and the indicator will start blinking for a
short time and then stay on; however, this is normal and is no cause for concern.
If you replace the tire with a full-size tire, the warning message on the multi-
information display and the low tire pressure/TPMS indicator will go off after a few
miles (kilometers).
600
1TPMS and the Compact Spare Tire
The system cannot monitor the pressure of the spare
tire. Manually check the spare tire pressure to be sure
that it is correct.
Use the TPMS specific wheels. Each is equipped with
a tire pressure sensor mounted inside the tire behind
the valve stem.