Jeep 2016 Wrangler Owner's Manual page 530

528 STARTING AND OPERATING
3. Lots of snow or ice around the wheels or wheel
housings.
4. Using tire chains on the vehicle.
5. Using wheels/tires not equipped with TPM sensors.
Vehicles not equipped with EVIC will inform the driver
which tire(s) are low but not provide actual tire pressure.
The low tire ISO telltale will illuminate along with
"LoTIrE" message displayed in the ODO and then it will
scroll to which tire location is lower than the Placard Value.
Tire location will be displayed as follows:
LF = Left Front
rF = right Front
Lr = Left rear
rr = right rear
NOTE:
• If your vehicle is equipped with a matching full-size
spare wheel and tire assembly, it has a tire pressure
monitoring sensor, and can be monitored by the Tire
Pressure Monitoring System (TPMS) when swapped
with a low pressure road tire. In the event that the
matching full-size spare tire is swapped with a low
pressure road tire, the next ignition key cycle will still
show the "Tire Pressure Monitoring Telltale Light" to
be ON, and a chime to sound. Driving the vehicle for
up to 20 minutes above 15 mph (24 km/h) will turn
OFF the "Tire Pressure Monitoring Telltale Light" as
long as none of the road tires are below the low
pressure warning threshold.
• If your vehicle is not equipped with a matching
full-size spare wheel and tire assembly, it does not
have a tire pressure monitoring sensor in the spare tire.
The TPMS will not be able to monitor the tire pressure.