Each individual tire equipped on the vehicle, including the spare tire assembly (if provided), should be meticulously checked at least once a month when cold and inflated to the specific inflation pressure recommended by the vehicle manufacturer on the official vehicle placard or the dedicated tire inflation pressure label. (If your specific Nissan Leaf has been fitted with aftermarket wheels or tires of a different size than the baseline size indicated on the factory vehicle placard or tire inflation pressure label, it is your responsibility to determine the proper customized tire inflation pressure for those specific tires.) As an advanced integrated safety feature, your vehicle has been equipped with a sophisticated Tire Pressure Monitoring System (TPMS) that illuminates a distinct low tire pressure telltale warning icon on the instrument cluster when one or more of your active tires is found to be significantly under-inflated.

Accordingly, whenever the automated low tire pressure telltale illuminates while operating your Nissan Leaf, you should safely pull over, stop, and inspect all tires as soon as possible, allowing them to cool down before inflating them to the proper recommended cold pressure specifications.

Subjecting the vehicle to prolonged driving on a significantly under-inflated tire causes the internal tire carcass to dangerously overheat, structural degradation to occur, and can ultimately lead to a sudden, hazardous tire failure or blowout. Operating with chronic under-inflation also severely reduces overall driving power efficiency, diminishes your vehicle battery range, shortens useful tire tread life, and may heavily compromise the vehicle's handling dynamics, cornering stability, and emergency stopping ability.

Please note that the onboard factory TPMS is not intended to be a substitute for regular, proactive manual tire maintenance, and it remains the driver's absolute responsibility to maintain correct tire pressure metrics. Correct parameters must be observed even if localized under-inflation has not yet reached the critical engineering threshold required to trigger the physical illumination of the electronic TPMS low tire pressure telltale symbol.

Your vehicle has also been equipped with an intelligent, self-diagnostic TPMS malfunction indicator designed to explicitly alert the operator when the underlying tracking system itself is not operating properly or is blocked by interference.

The specialized TPMS malfunction indicator is directly combined with the standard low tire pressure telltale warning dashboard light to save instrument cluster space.

When the internal system modules detect a verified internal or sensor malfunction, the main telltale icon will flash rapidly for approximately one minute and then transition to remain continuously illuminated as a solid warning light.

This distinct warning sequence will repeat upon each subsequent vehicle start-up cycle as long as the underlying hardware or calibration malfunction continues to exist in the computer. When this malfunction indicator is actively illuminated, the diagnostic system may be entirely unable to detect or signal low tire pressure states as originally intended. TPMS structural malfunctions may occur for a variety of common reasons, including the installation of replacement tires, alternate wheel types, or aftermarket components on the vehicle that block sensor communication or prevent the automated TPMS from functioning properly.

Always verify the status of the TPMS malfunction telltale immediately after replacing one or more tires or wheels on your Nissan Leaf to ensure that the replacement or alternate tires and wheels are fully compatible and allow the integrated TPMS to continue to function properly during regular driving conditions.

Additional information

• When utilizing a temporary wheel or a steel rim that is not fitted with an internal TPMS sensor, such as a standard emergency spare tire, the automated system does not monitor the real-time tire pressure of that unequipped spare tire position.
• The advanced electronic TPMS will initialize data tracking and activate only when the vehicle is driven at sustained road speeds above 16 mph (25 km/h). Furthermore, this automated monitoring system is not designed to instantly detect a sudden, catastrophic drop in tire pressure (for example, a structural flat tire puncture caused by road debris while driving at high speeds).
• The dashboard low tire pressure warning light does not automatically turn off immediately when the physical tire pressure is adjusted at a service station. After the low tire is successfully inflated to the factory recommended pressure, the Nissan Leaf must be driven at speeds above 16 mph (25 km/h) for a short distance to calibrate the sensors, activate the TPMS receiver modules, and automatically turn off the low tire pressure warning light. Always use a reliable, calibrated handheld tire pressure gauge to double-check the true tire pressure manually.
• The text alert "Tire Pressure Low - Add Air" also explicitly appears on the multi-function vehicle information display screen whenever the primary low tire pressure warning light is illuminated and localized low tire pressure is registered by the computer. The accompanying text-based "Tire Pressure Low - Add Air" warning automatically turns off the moment the main low tire pressure warning light clears from the cluster.
• The text-based "Tire Pressure Low - Add Air" notification message will pop up on the screen each time the main vehicle power switch is placed in the ON position, acting as a reminder as long as the low tire pressure warning light remains illuminated.
• The specific text alert "Tire Pressure Low - Add Air" does not appear on the center vehicle information display if the low tire pressure warning light illuminates solely to indicate a detected hardware TPMS malfunction.
• Internal tire pressure naturally rises and falls depending on the residual kinetic heat caused by the ongoing physical operation of the vehicle, as well as shifts in the outside ambient temperature. Never reduce or bleed off the air pressure from a hot tire immediately after driving, because tire pressure naturally rises above normal cold baselines due to operational heat build-up.

A sudden or extreme drop in outside ambient temperature can significantly lower the temperature of the air contained inside the tire casing, which directly leads to a lower real-time tire inflation pressure reading. This thermal contraction may cause the low tire pressure warning light to unexpectedly illuminate on the dashboard of your Nissan Leaf. If this sensitive warning light illuminates during periods of low ambient temperature, always check the exact tire pressure for all four tires manually using a reliable gauge before driving.

The internal pressure readings of all four tires can also be conveniently checked on the main vehicle information display screen. However, please note that the numerical order of the tire pressure figures currently displayed on the screen does not necessarily correspond with the actual geometric order of the physical tire positions on the vehicle chassis.

WARNING

• The active radio waves emitted by the integrated tire pressure monitoring sensors could adversely affect the operation of certain electrical medical equipment. Those who use an implanted cardiac pacemaker or defibrillator should proactively contact the specific electrical medical equipment manufacturer to understand all possible electromagnetic influences and safety distances before operation.
• If the low tire pressure warning light suddenly illuminates on your cluster while driving, immediately avoid any sudden steering maneuvers or abrupt braking, gradually reduce your vehicle speed, carefully pull off the road to a safe roadside location, and stop the vehicle completely as soon as possible.

  Continuing to drive your Nissan Leaf with significantly under-inflated tires may permanently damage the internal tire carcass structure and drastically increase the likelihood of a catastrophic tire blowout or structural failure.

  Serious vehicle damage could easily occur under these conditions and may lead to a total loss of control, an unexpected accident, and could result in serious personal injury or fatality.

  Carefully check the current tire pressure for all four tires without delay. Adjust the internal tire pressure to the exact recommended COLD tire pressure metrics shown on the factory Tire and Loading Information label to reset the system and turn the low tire pressure warning light off. If a specific tire is found to be flat or punctured, repair or replace it as soon as possible.

• When operating your Nissan Leaf with a temporary wheel or rim that lacks the proper integrated TPMS sensor, such as an emergency spare tire, the automated TPMS will not function and the low tire pressure warning light will flash rapidly for approximately 1 minute. The indicator light will then remain continuously on after that initial 1 minute has elapsed. Have your missing sensors replaced and/or the master TPMS system reset as soon as possible. It is highly recommended that you visit an authorized, NISSAN certified LEAF dealer for this specialized technical service.
• Replacing your factory wheels or tires with aftermarket alternatives not originally specified by NISSAN could negatively affect the radio frequency communication and prevent the proper operation of the TPMS.
• Do not inject any aftermarket liquid tire repair formulas or aerosol tire sealant products into any of the tires through the valve stems, as the chemical compounds may block the sensor ports and cause a permanent malfunction of the internal tire pressure sensors.

CAUTION

• The advanced TPMS may not function properly or read data accurately when the wheels are equipped with bulky metal tire chains or when the lower wheels are deeply buried in heavy snowbank accumulations.
• Do not place aftermarket metalized window tint film or any custom metal parts (such as secondary radio antennas, mounts, etc.) directly on or near the vehicle windows. This metallic shielding may cause poor wireless reception of the high-frequency radio signals transmitted from the tire pressure sensors, preventing the TPMS from functioning properly.

Certain external electronic devices and radio transmitters may temporarily interfere with the regular wireless operation of the TPMS modules, causing the low tire pressure warning light to erroneously illuminate on the dash. Some common operational examples of this interference include:

• Industrial facilities, power stations, or commercial electric devices using highly similar radio frequencies that are located in close physical proximity to the vehicle.
• If a handheld two-way radio or a mobile transmitter set to similar frequencies is being actively used directly inside or near the passenger cabin.
• If a high-power laptop computer (or similar digital processing equipment) or an aftermarket DC/AC power converter is being actively operated in or right next to the vehicle dashboard.

The low tire pressure warning light may also regularly illuminate on your Nissan Leaf instrument panel in the following specific cases:

• If the vehicle has been newly equipped with an alternate wheel and tire assembly that completely lacks an internal, functioning TPMS sensor.
• If a damaged TPMS sensor has been replaced with a new hardware component but the unique sensor ID code has not yet been registered to the vehicle computer.
• If the chosen wheel profile or structural offset is not originally specified by NISSAN for this particular model.

Regulatory FCC Notice:

For the United States of America:

This wireless device complies with Part 15 of the formal FCC Rules. Its regular operation is strictly subject to the following two legal conditions: (1) This device may not cause any harmful electromagnetic interference, and (2) this device must fully accept any external radio interference received, including any localized interference that may cause an undesired or unexpected operation of the system modules.

REGULATORY NOTE:

Any unauthorized changes or hardware modifications not expressly and explicitly approved by the corporate party responsible for regulatory compliance could entirely void the user's legal authority to operate this electronic equipment within the vehicle.

For Canada:

This electronic device contains licence-exempt transmitter(s)/receiver(s) that fully comply with Innovation, Science and Economic Development Canada's licence-exempt RSS standard(s). Ongoing operation is subject to the following two environmental conditions: (1) this device may not cause any baseline wireless interference, and (2) this device must dependably accept any external interference, including unexpected radio interference that may cause an undesired or erratic operation of the vehicle device.

Advanced TPMS with Easy-Fill Tire Alert

When the internal air pressure drops in any individual tire, the dashboard low tire pressure warning light immediately illuminates to alert the driver.

To simplify maintenance, this innovative Nissan Leaf model provides real-time visual and audible signals from the exterior of the car to help you safely inflate the tires to the exact recommended cold tire pressure parameters.

Initial vehicle set-up:

1. Safely park the vehicle in a secure, completely level place away from active traffic.

2. Firmly apply the electronic parking brake and push the P (Park) position switch located on the center shift lever assembly.

3. Place the main vehicle power switch in the ON position to power the body control modules.

Do not place the powertrain into the operational READY to drive mode, as the alert system requires the vehicle to remain stationary in the accessory ON state.

System operation:

1. Connect your external air compressor source and begin to add air to the under-inflated tire.

2. After a few seconds of continuous air flow, the vehicle's exterior hazard indicators will automatically start flashing to confirm that the system is actively monitoring the pressure increase.

3. The exact moment the designated target pressure is reached within the tire, the vehicle horn will beep once and the exterior hazard indicators will stop flashing to signal that inflation is complete.

4. Carefully perform the identical setup steps listed above for each individual tire on your Nissan Leaf.

• If a specific tire accidentally becomes over-inflated by more than approximately 4 psi (30 kPa) above the baseline setting, the vehicle horn will beep sharply and the exterior hazard indicators will flash three times in rapid succession. To quickly correct this excessive pressure, manually push the inner pin core of the valve stem on the tire briefly to release the trapped air pressure. The moment the internal air pressure falls back down and reaches the designated factory pressure parameter, the vehicle horn will beep once more in confirmation.
• If the exterior hazard indicators fail to flash within approximately 15 seconds after you have started to inflate the tire, it explicitly indicates that the automated Easy-Fill Tire Alert system is not operating as intended on that wheel position.
• The internal TPMS module will be unable to activate the convenient Easy-Fill Tire Alert system under the following operational conditions:
  • If there is heavy localized radio frequency interference originating from an active external device or a nearby commercial transmitter tower.
  • The absolute air pressure volume coming from your chosen inflation device is not physically sufficient to inflate the tire at a normal rate, such as when using small portable pumps powered by the internal 12V cabin power socket.
  • If secondary electrical equipment or high-draw electronic devices are actively being used directly inside or right near the vehicle during inflation.
  • There is an active structural malfunction or sensor error hidden within the master TPMS network.
  • There is an existing electrical malfunction in the vehicle's horn relay or within the exterior hazard indicators circuit.
  • If the convenient Easy-Fill Tire Alert system does not operate due to temporary localized TPMS signal interference, simply move the Nissan Leaf about 3 feet (1 meter) backward or forward to alter the sensor geometry and try the process again.

If you determine that the integrated Easy-Fill Tire Alert system is not working properly, always use a manual, calibrated handheld tire pressure gauge to verify your target inflation parameters.