When Driving; Tire Pressure Monitoring System- Page 219

Please note that the TPMS is not a substitute for proper tire maintenance, and it is the
driver's responsibility to maintain correct tire pressure, even if under-inflation has not
reached the level to trigger illumination of the TPMS low tire pressure telltale.
Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when
the system is not operating properly.
The TPMS malfunction indicator is combined with the low tire pressure telltale. When the
system detects a malfunction, the telltale will flash for approximately one minute and then
remain continuously illuminated. This sequence will continue upon subsequent vehicle
start-ups as long as the malfunction exists. When the malfunction indicator is illuminated,
the system may not be able to detect or signal low tire pressure as intended. TPMS
malfunctions may occur for a variety of reasons, including the installation of replacement
or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly.
Always check the TPMS malfunction telltale after replacing one or more tires or wheels on
your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to
continue to function properly.

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To avoid false readings, the system samples for a little while before indicating a problem. As
a result it will not instantaneously register a rapid tire deflation or blow out.

NOTE

Because this system detects slight changes in tire conditions, the timing of the warning may
be faster or slower in the following cases:

•

The size, manufacturer, or the type of tires is different from the specification.

•

The size, manufacturer, or the type of a tire is different from the others, or the level of tire
wear is excessively different between them.

•

A run-flat tire, studless tire, snow tire, or tire chains are used.

•

An emergency tire is used (The tire pressure monitoring system warning light may flash
and then continue illuminating).

•

A tire is repaired using the emergency flat tire repair kit.

•

The tire pressure is excessively higher than the specified pressure, or the tire pressure is
suddenly lowered for some reason such as a tire burst during driving.

•

The vehicle speed is lower than about 15 km/h (9.3 mph) (including when the vehicle is
stopped), or the drive period is shorter than 5 minutes.

•

The vehicle is driven on an extremely rough road or a slippery, icy road.

•

Hard steering and rapid acceleration/deceleration are repeated such as during aggressive
driving on a winding road.

•

Load on the vehicle is applied to a tire such as by loading heavy luggage to one side of
the vehicle.

•

System initialization has not been implemented with the specified tire pressure.

When Driving

Tire Pressure Monitoring System

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MX-5_8FR4-EA-16J_Edition3

2017-3-29 20:29:26