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2025 Lexus Ux Warning Lights and Indicator User Guide

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2025 Lexus Ux Warning Lights and Indicator User Guide

In this guide, we will learn about the 2025 Lexus UX warning lights and indicators, decoding their significance to ensure your car stays in peak shape. Recognize important warnings for smooth driving, safety, and maintenance.

2024 Lexus UX Review, Specs, Price and Mileage (Brochure)

 

Lexus Warning lights and indicators Guide

If a warning light turns on or a warning buzzer sounds
Calmly perform the following actions if any of the warning lights comes on or flashes. If a light comes on or flashes, but then goes off, this does not necessarily indicate a malfunction in the system. However, if this continues to occur, have the vehicle inspected by your Lexus dealer

Actions to the warning lights or warning buzzers
Brake system warning light (warning buzzer)

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 1

(U.S.A.)

2025 Lexus Ux Warning Lights and Indicator 2

(red) (Canada)

Indicates that:
  • The brake fluid level is low; or
  • The brake system is malfunctioning

Immediately stop the vehicle in a safe place and contact your Lexus dealer. Continuing to drive the vehicle may be dangerous.

Charging system warning light* (warning buzzer)

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 3 Indicates a malfunction in the vehicle’s charging syste
Immediately stop the vehicle in a safe place and contact your Lexus dealer.

This light illuminates on the multi-information display.

  • Low engine oil pressure warning light* (warning buzzer)
Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 4 Indicates that the engine oil pressure is too low
Immediately stop the vehicle in a safe place and contact your Lexus dealer.

Malfunction indicator lamp (warning buzzer)

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 5

(U.S.A.)

2025 Lexus Ux Warning Lights and Indicator 6

(Canada)

Indicates a malfunction in:
  • The hybrid system;
  • The electronic engine control system; or
  • The electronic throttle control system

Immediately stop the vehicle in a safe place and contact your Lexus dealer.

High coolant temperature warning light* (warning buzzer)

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 7 Indicates that the engine coolant temperature is too high
Immediately stop the vehicle in a safe place.
Handling method

This light illuminates on the multi-information display.

Tire pressure warning light

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 8 When the light comes on:
  • Low tire inflation pressure from natural causes

After the temperature of the tires has lowered sufficiently, check the inflation pressure of each tire and adjust them to the specified level.

  • Low tire inflation pressure from flat tire

Immediately stop the vehicle in a safe place and perform the nec- essary actions. When the light comes on after blinking for approximately 1 minute (a buzzer does not sounds):
Malfunction in the tire pressure warning system
Have the system checked by your Lexus dealer.

Brake system warning light (warning buzzer)

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 9

 

(yellow)

Indicates a malfunction in:
  • The regenerative braking system;
  • The electronically controlled brake system; or
  • The parking brake system

Have the vehicle inspected by your Lexus dealer immediately.

SRS warning light (warning buzzer)

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 10 Indicates a malfunction in:
  • The SRS airbag system;
  • The front passenger occupant classification system; or
  • The seat belt pretensioner system

Have the vehicle inspected by your Lexus dealer immediately.

ABS warning light (warning buzzer)

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 11

(U.S.A.)

2025 Lexus Ux Warning Lights and Indicator 12

 

(Canada)

Indicates a malfunction in:
  • The ABS; or
  • The brake assist system

Have the vehicle inspected by your Lexus dealer immediately.

Electric power steering system warning light (warning buzzer)

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 13

(red)

2025 Lexus Ux Warning Lights and Indicator 14

(yellow)

Indicates a malfunction in the EPS (Electric Power Steering) system
  • Have the vehicle inspected by your Lexus dealer immediately.

Slip indicator

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 15 Indicates a malfunction in:
  • The VSC system;
  • The TRAC system; or
  • The hill-start assist control system

Have the vehicle inspected by your Lexus dealer immediately.

Parking brake indicator

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 16

(flashes) (U.S.A.)

2025 Lexus Ux Warning Lights and Indicator 17

(flashes) (Canada)

It is possible that the parking brake is not fully engaged or released. Operate the parking brake switch once again.
This light comes on when the parking brake is not released. If the light turns off after the parking brake is fully released, the system is operating normally.

Brake hold operated indicator (warning buzzer)

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 18

(flashes)

Indicates a malfunction in the brake hold system
Have the vehicle inspected by your Lexus dealer immediately.

Intuitive parking assist OFF indicator (warning buzzer)

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 19 When a buzzer sounds:

Indicates a malfunction in the intuitive parking assist function Have the vehicle inspected by your Lexus dealer immediately.
When a buzzer does not sound:
Indicates that the system is temporarily unavailable, possibly due to a sensor being dirty or covered with ice, etc.
Follow the instructions displayed on the multi-information display. (P.422)

Low fuel level warning light

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 20 Indicates that remaining fuel is approximately 1.6 gal. (6.0L, 1.3 Imp.gal.) or less
Refuel the vehicle.

Driver’s and front passenger’s seat belt reminder light (warning buzzer)*

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 21 Warns the driver and/or front passenger to fasten their seat belts
Fasten the seat belt.
If the front passenger’s seat is occupied, the front passenger’s seat belt also needs to be fastened to make the warning light (warning buzzer) turn off.

Driver’s seat belt warning buzzer:
The driver’s seat belt warning buzzer sounds to alert the driver that his or her seat belt is  not fastened. Once the power switch is turned to ON, the buzzer sounds. If the seat belt is still unfastened, the buzzer sounds intermittently for a certain period of time after the vehicle reaches a certain speed. Front passenger’s seat belt warning buzzer:
The front passenger’s seat belt warning buzzer sounds to alert the front passenger that his or her seat belt is not fastened. If the seat belt is unfastened, the buzzer sounds intermittently for a certain period of time after the vehicle reaches a certain speed.

Rear passengers’ seat belt reminder lights*1 (warning buzzer)*2

Warning light Details/Actions
 

2025 Lexus Ux Warning Lights and Indicator 22

Warns the rear passengers to fasten their seat belts
Fasten the seat belt.
  1. This light illuminates on the multi-information display. Regardless of whether or not a rear passenger is present, if the power switch is turned to ON with the rear seat belts unfastened, this light will also illuminate for a certain period of time.
  2. Rear passengers’ seat belt warning buzzer:
    The rear passengers’ seat belt warning buzzer sounds to alert the rear passenger that his or her seat belt is not fastened. If the seat belt is unfastened, the buzzer sounds intermittently for a certain period of time, after the seat belt is fastened and unfastened and the vehicle reaches a certain speed.

Inappropriate pedal operation warning light* (warning buzzer)

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 23

 

When a buzzer sounds:
  • Brake Override System is malfunctioning
  • Drive-Start Control is malfunctioning
  • Drive-Start Control is operating

Follow the instructions displayed on the multi information display and head-up display (if equipped).

When a buzzer does not sound:
Brake Override System is operating
Release the accelerator pedal and depress the brake pedal.

This light illuminates on the multi-information display.

PCS warning light (warning buzzer)

Warning light Details/Actions
 

2025 Lexus Ux Warning Lights and Indicator 24

Indicates a malfunction in the PCS (Pre-Collision System).
Follow the instructions displayed on the multi-information display.
If the PCS (Pre-Collision System) or VSC (Vehicle Stability Control) system is disabled, the PCS warning light will illuminate.

LTA indicator (warning buzzer)

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 25

(Yellow)

Indicates a malfunction in the LTA (Lane Tracing Assist)
Follow the instructions displayed on the multi-information display.

LDA indicator (warning buzzer)

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 26

(Yellow)

Indicates a malfunction in the LDA (Lane Departure Alert)
Follow the instructions displayed on the multi-information display.

PDA indicator (warning buzzer)

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 27

(Yellow)

Indicates a malfunction in the PDA (Proactive Driving Assist).
Follow the instructions displayed on the multi-information display.

Cruise control indicator (warning buzzer)

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 28

(Yellow)

Indicates a malfunction in the cruise control system.
Follow the instructions displayed on the multi-information display.

Dynamic radar cruise control indicator (warning buzzer)

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 29

(Yellow)

Indicates a malfunction in the dynamic radar cruise control system.
Follow the instructions displayed on the multi-information display.

Driving assist information indicator

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 30

(Yellow)

Indicates either of the following systems may be malfunctioning.
  • PCS (Pre-Collision System)
  • LDA (Lane Departure Alert)

Follow the instructions displayed on the multi-information display.
Indicates any of the following systems are malfunctioning, disabled, or turned off.

  • PKSB (Parking Support Brake) (if equipped)
  • BSM (Blind Spot Monitor)
  • RCTA (Rear cross traffic alert)
  • Safe Exit Assist

Follow the instructions displayed on the multi-information display.

Hybrid system overheat warning light* (warning buzzer)

Warning light Details/Actions
2025 Lexus Ux Warning Lights and Indicator 31 Indicates the hybrid system has overheated
This light may be displayed when driving under severe operating condi- tions. (For example, when driving up a long steep hill.) Stop the vehicle in a safe place. Handling method.

This light illuminates on the multi-information display.

Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location or audio Sound.

Front passenger detection sensor, seat belt reminder and warning buzzer

  • If luggage is placed on the front passenger seat, the front passenger detection sensor may cause the warning light to flash and the warning buzzer to sound even if a passenger is not sitting in the seat.
  • If a cushion is placed on the seat, the sensor may not detect a passenger, and the warning light may not operate properly.

SRS warning light
This warning light system monitors the airbag sensor assembly, front impact sensors, side impact sensors (front door), side impact sensors (front), front passenger occupant classification system (ECU and sensors), “AIR BAG ON” indicator light, “AIR BAG OFF” indicator light, front passenger’s seat belt buckle switch, seat belt pretensioners, airbags, interconnecting wiring and power sources.

Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insufficient or the voltage temporarily drops, the electric power steering system warning light may come on and the warning buzzer may sound.

2024 Lexus UX Review, Specs, Price and Mileage (Brochure)

When the tire pressure warning light comes on
Inspect the tires to check if a tire is punctured. If a tire is punctured:
If none of the tires are punctured: Turn the power switch off then turn it to ON. Check if the tire pressure warning light comes on or blinks.

  • If the tire pressure warning light blinks for approximately 1 minute then stays on There may be a malfunction in the tire pressure warning system. Have the vehicle inspected by your Lexus dealer immediately.
  • If the tire pressure warning light comes on After the temperature of the tires has lowered sufficiently, check the inflation pressure
    of each tire and adjust them to the specified level. If the warning light does not turn off even after several minutes have elapsed, check that the inflation pressure of each tire is at the specified level and perform the tire inflation pressure setting procedure. If the warning light does not turn off even after several minutes have elapsed since performing the tire inflation pressure setting procedure, have the vehicle inspected by your Lexus dealer immediately.

The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural air leaks and tire inflation pressure changes caused by temperature. In this case, adjusting the tire inflation pressure will turn off the warning light (after a few minutes).
Conditions that the tire pressure warning system may not function properly

WARNING
If a warning light comes on or a warning buzzer sounds when a warning message is shown on the multi-information display Check and follow the message shown on the multi-information display. Failure to do so may result in death or serious injury.

WARNING
When the electric power steering system warning light comes on When the light comes on yellow, the assist to the power steering is restricted. When the light comes on red, the assist to the power steering is lost and handling operations of the steering wheel become extremely heavy.
When steering wheel operations are heavier than usual, grip the steering wheel firmly and operate it using more force than usual.

If the tire pressure warning light comes on Be sure to observe the following precautions. Failure to do so could cause a loss of vehicle control and result in death or serious injury.

  • Decelerate to the lowest appropriate speed as soon as possible. Do not drive over 50 mph (80 km/h).
  • Check and adjust the tire inflation pressure immediately.
  • If the tire pressure warning light comes on even after tire inflation pressure adjustment, it is probable that you have a flat tire. Have the flat tire replaced by the nearest Lexus dealer.
  • Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could lose control of the steering wheel or the brakes.

If a blowout or sudden air leakage should occur The tire pressure warning system may not activate immediately.

Maintenance of the tires
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 (tire and load information label). (If your vehicle has tires of a different size than the size indicated on the vehicle placard or tire inflation pressure label [tire and load information 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-tire pressure warning system) that illuminates a low tire pressure telltale (tire pressure warning light) when one or more of your tires is significantly under-inflated. Accordingly,
when the low tire pressure telltale (tire pressure warning light) illuminates, you should stop and check your tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly
under-inflated 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 (tire pressure warning system) 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 (tire pressure warning light).

WARNING
Your vehicle has also been equipped with a TPMS (tire pressure warning system) malfunction indicator to indicate when the system is not operating properly. The TPMS (tire pressure warning system) malfunction indicator is combined with the low tire pressure telltale
(tire pressure warning light). 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 (tire pressure warning system) 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 (tire pressure warning system) from
functioning properly. Always check the TPMS (tire pressure warning system) 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 (tire pressure warning system) to continue to function properly.

NOTICE
To ensure the tire pressure warning system operates properly Do not install tires with different specifications or makers, as the tire pressure warning system may not operate properly.

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