Infiniti QX: Tire Pressure Monitoring System (TPMS)
Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard or tire inflation pressure label. (If your vehicle has tires of a different size than the size indicated on the vehicle placard or tire inflation pressure label, you should determine the proper tire inflation pressure for those tires.). As an added safety feature, your vehicle has been equipped with a Tire Pressure Monitoring System (TPMS) that illuminates a low tire pressure telltale when one or more of your tires is significantly underinflated. Accordingly, when the low tire pressure telltale illuminates, you should stop and check your tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly underinflated tire causes the tire to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency and tire tread life, and may affect the vehicle’s handling and stopping ability. 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.
Additional information
► The TPMS does not monitor the tire
pressure of the spare tire.
► The TPMS will activate only when the
vehicle is driven at speeds above 16
MPH (25 km/h). Also, this system may
not detect a sudden drop in tire
pressure (for example a flat tire while
driving).
► The low tire pressure warning light does
not automatically turn off when the tire
pressure is adjusted. After the tire is
inflated to the recommended pressure,
the vehicle must be driven at speeds
above 16 MPH (25 km/h) to activate the
TPMS and turn off the low tire pressure
warning light. Use a tire pressure gauge
to check the tire pressure.
► The CHECK TIRE PRESSURE warning
appears in the dot matrix liquid crystal
display when the low tire pressure
warning light is illuminated and low
tire pressure is detected. The CHECK
TIRE PRESSURE warning turns off when
the low tire pressure warning light
turns off.
The CHECK TIRE PRESSURE warning
message does not appear if the low
tire pressure warning light illuminates
to indicate a TPMS malfunction.
► Tire pressure rises and falls depending
on the heat caused by the vehicle’s
operation and the outside temperature.
Low outside temperature can lower the
temperature of the air inside the tire
which can cause a lower tire inflation
pressure. This may cause the low tire
pressure warning light to illuminate. If
the warning light illuminates in low
ambient temperature, check the tire
pressure for all four tires.
► You can also check the pressure of all
tires (except the spare tire) on the
display screen. The order of the tire
pressure figures displayed on the
screen does not correspond with the
actual order of the tire position. See
“TIRE PRESSURE information” in the “4.
Monitor, climate, audio, phone and
voice recognition systems” section.
For additional information, see “Low tire
pressure warning light” in the “2. Instruments
and controls” section and “Tire
Pressure Monitoring System (TPMS) ” in
the “6. In case of emergency” section.
WARNING
► If the low tire pressure warning light
illuminates or LOW PRESSURE information
is displayed on the monitor screen
while driving, avoid sudden steering
maneuvers or abrupt braking, reduce
vehicle speed, pull off the road to a safe
location and stop the vehicle as soon as
possible. Driving with under-inflated
tires may permanently damage the tires
and increase the likelihood of tire failure.
Serious vehicle damage could occur
and may lead to an accident and could
result in serious personal injury. Check
the tire pressure for all four tires. Adjust
the tire pressure to the recommended
COLD tire pressure shown on the Tire
and Loading Information label to turn
the low tire pressure warning light OFF. If
the light still illuminates while driving
after adjusting the tire pressure, a tire
may be flat. If you have a flat tire,
replace it with a spare tire as soon as
possible. (See “Flat tire” in the “6. In
case of emergency” section for changing
a flat tire.).
► When a spare tire is mounted or a wheel is replaced, the TPMS will not
function
and the low tire pressure warning light
will flash for approximately 1 minute.
The light will remain on after 1 minute.
Contact your INFINITI retailer as soon as
possible for tire replacement and/or
system resetting.
► Replacing tires with those not originally
specified by INFINITI could affect the
proper operation of the TPMS.
► Do not inject any tire liquid or aerosol
tire sealant into the tires, as this may
cause a malfunction of the tire pressure
sensors.
CAUTION
► The TPMS may not function properly
when the wheels are equipped with tire
chains or the wheels are buried in snow.
► Do not place metalized film or any metal
parts (antenna, etc.) on the windows.
This may cause poor reception of the
signals from the tire pressure sensors,
and the TPMS will not function properly.
Some devices and transmitters may temporarily
interfere with the operation of the
TPMS and cause the low tire pressure
warning light to illuminate. Some examples
are:
► Facilities or electric devices using similar
radio frequencies are near the
vehicle.
► If a transmitter set to similar frequencies
is being used in or near the
vehicle.
► If a computer (or similar equipment) or
a DC/AC converter is being used in or
near the vehicle.
FCC Notice:
For USA:
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Note: Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. For Canada: This device complies with RSS-210 of Industry Canada. Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.
TPMS with Tire Inflation Indicator
When adding air to an under-inflated tire, the TPMS with Tire Inflation Indicator provides visual and audible signals outside the vehicle to help you inflate the tires to the recommended COLD tire pressure.
Vehicle set-up:
1. Park the vehicle in a safe and level place. 2. Apply the parking brake and place the selector lever in the P (Park) position. 3. Place the ignition switch in the ON position. Do not start the engine.
Operation:
1. Add air to the tire.
2. After a few seconds, the hazard indicators
will start flashing.
3. When the designated pressure is
reached, the horn beeps once and the
hazard indicators stop flashing.
4. Perform the above steps for each tire.
► If the tire is over-inflated more than
approximately 4 psi (30 kPa), the horn
beeps and the hazard indicators flash 3
times. To correct the pressure, push the
core of the valve stem on the tire briefly
to release pressure. When the pressure
reaches the designated pressure, the
horn beeps once.
► If the hazard indicator does not flash
within approximately 15 seconds after
starting to inflate the tire, it indicates
that the Tire Inflation Indicator is not
operating.
► The TPMS will not activate the Tire
Inflation Indicator under the following
conditions:
— If there is interference from an
external device or transmitter.
— The air pressure from the inflation
device such as those using a power
socket is not sufficient to inflate the
tire.
— If an electrical equipment is being
used in or near the vehicle.
— There is a malfunction in the TPMS
system.
— There is a malfunction in the horn or
hazard indicators.
► If the Tire Inflation Indicator does not
operate due to TPMS interference,
move the vehicle about 3 ft (1m)
backward or forward and try again.
If the Tire Inflation Indicator is not working,
use a tire pressure gauge.
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Radio Frequency Statement
This vehicle has systems that operate on a radio frequency that comply with Part
15 of the Federal Communications Commission (FCC) rules and with Industry Canada
Standards RSS-GEN/210/220/310.
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