Nissan Sentra B18 (2020-2025) Owner's Manual: Warning/Indicator lights (yellow)

For additional details regarding warning and indicator lights, refer to the sections titled "Vehicle information display 4.2 inch (11 cm) Type A" or "Vehicle information display 7 inch (18 cm) Type B" in this Owner’s Manual for the Nissan Sentra.

or Anti-lock Braking System (ABS) warning light

When the ignition switch of the Nissan Sentra is placed in the ON position, the ABS warning light illuminates briefly and then turns off. This indicates that the Anti-lock Braking System is functioning correctly.

If the ABS warning light illuminates while the engine is running or while driving, it may indicate that the ABS is not operating properly. Have the system inspected as soon as possible. It is recommended that you visit a NISSAN dealer for professional service.

If an ABS malfunction occurs, the anti-lock function is disabled. The conventional brake system will continue to operate normally, but without anti-lock assistance.

Automatic Emergency Braking (AEB) with Pedestrian Detection system warning light

This indicator light illuminates when the ignition switch is placed in the ON position and turns off after the engine is started.

The light will remain illuminated when the Automatic Emergency Braking with Pedestrian Detection system is manually set to OFF through the vehicle information display.

If this light illuminates or flashes while the AEB with Pedestrian Detection system is enabled, it may indicate that the system is temporarily unavailable due to conditions such as sensor obstruction or system limitations.

Front passenger air bag status light

The front passenger air bag status light indicates whether the front passenger air bag is ON or OFF, depending on seat occupancy, weight detected by the sensor, and seat belt usage in the Nissan Sentra.

Low tire pressure warning light

Your Nissan Sentra is equipped with a Tire Pressure Monitoring System (TPMS) that continuously monitors the air pressure of all four road tires, excluding the spare tire.

The low tire pressure warning light alerts the driver when one or more tires are significantly underinflated, or when the TPMS is not functioning correctly.

When the ignition switch is placed in the ON position, this light illuminates for about 1 second and then turns off, indicating normal system operation.

Low tire pressure warning

If the Nissan Sentra is driven with low tire pressure, the warning light will illuminate.

The low tire pressure warning light does not automatically turn off after correcting tire pressure. After inflating the tires to the recommended pressure, drive the Nissan Sentra at speeds above 16 mph (25 km/h) to allow the TPMS to update and turn off the warning light. Always use a reliable tire pressure gauge to verify tire pressure.

The "Tire Pressure Low – Add Air" warning will appear each time the ignition switch is placed in the ON position as long as the low tire pressure warning light remains illuminated.

TPMS malfunction

If the TPMS is not operating properly, the low tire pressure warning light will flash for approximately 1 minute after the ignition switch is placed in the ON position. After flashing, the light will remain illuminated. Have the system checked promptly. It is recommended that you visit a NISSAN dealer for this service.

When the TPMS malfunction occurs, the "Tire Pressure Low – Add Air" message will not be displayed, even though the warning light remains on.

WARNING

• Radio waves emitted by the TPMS may interfere with certain electronic medical equipment. Individuals using a pacemaker should consult the medical equipment manufacturer regarding possible effects before driving the Nissan Sentra.

• If the warning light does not illuminate when the ignition switch is placed in the ON position, have the vehicle inspected as soon as possible. It is recommended that you visit a NISSAN dealer for this service.

If the low tire pressure warning light illuminates while driving the Nissan Sentra, avoid sudden steering inputs or abrupt braking maneuvers. Gradually reduce vehicle speed, pull off the road to a safe location, and stop the vehicle as soon as it is safely possible. Driving with under-inflated tires can cause permanent tire damage and significantly increase the risk of tire failure. Severe vehicle damage may occur, which could lead to a collision and result in serious personal injury or death. Check the tire pressure of all four tires immediately. Adjust the tire pressure to the recommended COLD tire pressure shown on the Tire and Loading Information label located in the driver’s door opening. This procedure is required to turn the low tire pressure warning light off. If the warning light remains illuminated while driving after the tire pressure has been correctly adjusted, a tire may be flat or the Tire Pressure Monitoring System (TPMS) may be malfunctioning. If a flat tire is found, replace it with the spare tire as soon as possible. If no tire is flat and all tires are properly inflated, have the Nissan Sentra inspected promptly. It is recommended that you visit a NISSAN dealer for this service.

CAUTION

• The TPMS is not a substitute for regular tire pressure inspections. Always check tire pressure routinely, even when no warning light is illuminated.

• If the vehicle is driven at speeds below 16 mph (25 km/h), the TPMS may not operate accurately.

• Always install the specified tire size on all four wheels to ensure correct TPMS performance.

Malfunction Indicator Light (MIL) (if so equipped)

If the Malfunction Indicator Light illuminates steadily or begins to blink while the engine is running, it may indicate a potential emission control system malfunction in the Nissan Sentra.

The MIL may also illuminate steadily if the fuel-filler cap is loose or missing, or if the vehicle runs out of fuel. Ensure that the fuel-filler cap is properly installed and securely tightened, and verify that the vehicle contains at least 3 gallons (11.4 liters) of fuel in the fuel tank.

After several normal driving trips, the light should turn off if no additional emission control system malfunction is detected.

If this indicator light illuminates steadily for approximately 20 seconds and then blinks for about 10 seconds when the engine is not running, it indicates that the vehicle is not ready for an emission control system inspection or maintenance test.

Operation

The Malfunction Indicator Light may operate in one of the following two modes:

• MIL illuminated steadily – An emission control system malfunction has been detected.

  If a Loose Fuel Cap warning appears in the vehicle information display, check the fuel-filler cap. If the cap is loose or missing, tighten or reinstall it securely and continue driving the Nissan Sentra. The light should turn off after a few normal driving trips. If the light does not turn off after several trips, have the vehicle inspected. It is recommended that you visit a NISSAN dealer for this service. The vehicle does not need to be towed.

• MIL blinking – An engine misfire has been detected that may damage the emission control system. To reduce or prevent emission system damage:

  • Do not drive at speeds above 45 mph (72 km/h).

  • Avoid hard acceleration and sudden deceleration.

  • Avoid steep uphill driving whenever possible.

  • If possible, reduce the amount of cargo being carried or towed.

The MIL may stop blinking and remain steadily illuminated. In this case, have the vehicle inspected as soon as possible. It is recommended that you visit a NISSAN dealer for this service. Towing is not required.

CAUTION

Continuing to operate the Nissan Sentra without having the emission control system inspected and repaired may result in poor driveability, reduced fuel economy, and potential damage to the emission control system.

Master warning light

When the ignition switch of the Nissan Sentra is placed in the ON position, the master warning light illuminates whenever one or more important alerts are shown on the vehicle information display. This light is designed to draw the driver’s attention to conditions that may require immediate action or further inspection.

• Low washer fluid warning

• Loose fuel cap warning

• Low tire pressure warning

• Emergency brake warning

• Lock warning

• Shipping mode warning

• Door/Trunk open warning (when vehicle is moving)

• LED headlight system warning (if so equipped)

• Chassis Control system fault warning (if so equipped)

• Service CVT warnings

• Service engine warnings

• Rear Automatic Braking warning (if so equipped)

• Parking sensor error warning

• Driver Attention Alert warning (if so equipped)

• ITS system malfunction warning

• Traffic Sign Recognition warnings (if so equipped)

• I-Key system warnings

Power steering warning light

WARNING

• If the engine is not running or is turned off while driving, power steering assist will not be available.

  Steering effort will increase significantly.

• If the power steering warning light illuminates while the engine is running, the power assist for steering will be deactivated. Although steering control is maintained, increased effort will be required. Have the power steering system inspected as soon as possible. It is recommended that you visit a NISSAN dealer for this service.

When the ignition switch is placed in the ON position, the power steering warning light illuminates briefly. After the engine is started, the light turns off, indicating that the power steering system of the Nissan Sentra is operating normally.

If the power steering warning light remains on or illuminates while driving, it may indicate a malfunction within the power steering system.

Have the system checked promptly. It is recommended that you visit a NISSAN dealer for this service.

When this warning light is on with the engine running, power assist is disabled. Steering effort will increase, especially during low- speed maneuvers and sharp turns.

Rear Automatic Braking (RAB) system warning light

This light illuminates when the ignition switch is placed in the ON position and turns off after the engine starts, confirming normal system operation.

The warning light will remain illuminated when the Rear Automatic Braking system is turned OFF using the vehicle information display.

If the light illuminates or flashes while the RAB system is active, it may indicate that the system is temporarily unavailable or experiencing a malfunction.

Slip indicator light

The slip indicator light flashes when the Vehicle Dynamic Control (VDC) system is actively regulating wheel traction. This indicates that road conditions may be slippery and traction limits are being approached.

You may notice slight vibrations or hear operating noises while the system is active; this is normal operation.

The indicator may continue to blink briefly after the VDC system stops limiting wheel spin.

The indicator light also illuminates when the ignition switch is placed in the ON position and turns off after approximately 2 seconds if the system is functioning correctly.

If the indicator does not illuminate or remains on, have the system checked. It is recommended that you visit a NISSAN dealer for this service.

Vehicle Dynamic Control (VDC) OFF indicator light

This indicator illuminates when the VDC system has been manually turned off using the vehicle information display, indicating that electronic stability control is disabled.

The VDC system can be reactivated through the vehicle information display or by restarting the engine. For more details, see "Vehicle Dynamic Control (VDC) system".

The indicator light also briefly illuminates when the ignition switch is placed in the ON position and then turns off if the system is operating normally.

If the indicator remains illuminated or appears together with the indicator light while driving, the VDC system may require service. It is recommended that you visit a NISSAN dealer for this service.

WARNING

The VDC system should normally remain ON and should only be turned off when attempting to free the Nissan Sentra from mud, snow, or similar low-traction conditions.

During VDC operation, you may feel slight vibrations or hear system noise during acceleration or vehicle start-up. These conditions are normal and do not indicate a malfunction.

© 2014-2026 Copyright www.nisentra.com