Toyota bZ4X Owner's Manual: If a Warning Message is Displayed

The multi-information display alerts you to system malfunctions, improper operations, or maintenance needs. When a warning appears, immediately follow the corrective steps specified. If the warning recurs even after you have taken the necessary actions, have the vehicle inspected by your Toyota dealer.

Additionally, if a warning light activates or flashes alongside the warning message, address the light’s issue in accordance with the recommended procedure.

Warning Messages Overview

The specific warning messages presented may vary depending on driving conditions and vehicle specifications.

Warning Buzzer

In noisy environments, the buzzer may sometimes go unnoticed.

If "EV system stopped Steering Power low" is Displayed

This alert appears when the EV system is halted while driving, resulting in unusually heavy steering. In such cases, grip the wheel firmly and use extra force to maintain control.

If "EV system overheated Output power reduced" is Displayed

This warning may occur under severe operating conditions-such as during extended climbs up steep hills-indicating that the system is reducing power output to prevent overheating.

If "Shift System Malfunction Shifting Unavailable Drive to a Safe Place and Stop" or "Shift System Malfunction Driving Unavailable" is Displayed

These messages indicate a fault in the shift control system. Stop the vehicle immediately and have it inspected by your Toyota dealer.

If "Shift is in N Release Accelerator before shifting" is Displayed

This message appears when the accelerator is pressed while the transmission is in Neutral. Release the accelerator pedal and shift into Drive or Reverse as appropriate.

If "Press brake when vehicle is stopped EV system may overheat" is Displayed

This warning indicates that holding the accelerator while the vehicle is stopped-especially on an incline-can cause the EV system to overheat. To correct this, release the accelerator and firmly apply the brakes.

If "Auto Power OFF to Conserve Battery" is Displayed

The system has automatically powered off to conserve battery life. On your next start, allow the EV system to run for about 5 minutes to recharge the 12-volt battery.

If "Regenerative Braking Limited Press Brake to Decelerate" is Displayed

This message signals that regenerative braking is limited-typically when the traction battery is fully charged or under extreme temperature conditions. In this situation, decelerate by firmly pressing the brake pedal.

If "High Power Consumption Power to Climate Temporarily Limited" is Displayed

Reduce power consumption by turning off unnecessary electronic devices and wait for the power supply to return to normal.

If "Headlight System Malfunction Visit Your Dealer" is Displayed

This warning denotes potential issues with the headlight system (such as the LED headlight or automatic high beam) and requires immediate inspection by your Toyota dealer.

If "Parking Assist Unavailable Sensor Blocked" is Displayed

The message indicates that a sensor may be obstructed by water, ice, or dirt. Clean the sensor and, if ice is present at low temperatures, allow it to melt. If the sensor still functions abnormally after cleaning, have it checked by your Toyota dealer.

For example, if you own a Toyota bZ4X, it is important to address these alerts promptly to maintain optimal performance.

Overall Recommendation

Always follow the indicated corrective measures when a warning message is displayed, and if any warning light continues to flash even after addressing the issue, consult your Toyota dealer immediately.

If "Parking Assist Unavailable Low Visibility See Owner's Manual" is displayed

Indicates one of the following systems is disabled.

• RCD (Rear Camera Detection) (if equipped)
• PKSB (Parking Support Brake) (if equipped)

Remove any dirt or foreign matter from the rear camera.

If "System Malfunction Visit Your Dealer" is displayed

Indicates one of the following systems is disabled.

• PCS (Pre-Collision System)
• LDA (Lane Departure Alert)
• LTA (Lane Tracing Assist)
• AHB (Automatic High Beam)
• Dynamic radar cruise control
• RSA (Road Sign Assist)
• PDA (Proactive Driving Assist)
• BSM (Blind Spot Monitor) (if equipped)
• RCTA (Rear Cross Traffic Alert) (if equipped)
• Safe Exit Assist (If equipped)
• Intuitive parking assist (if equipped)
• PKSB (Parking Support Brake) (if equipped)
• RCD (Rear Camera Detection) (if equipped)

Have the vehicle inspected by your Toyota dealer immediately.

If "System Stopped See Owner's Manual" is displayed

Indicates one of the following systems is disabled.

• PCS (Pre-Collision System)
• LDA (Lane Departure Alert)
• LTA (Lane Tracing Assist)
• AHB (Automatic High Beam)
• Dynamic radar cruise control
• RSA (Road Sign Assist)
• PDA (Proactive Driving Assist)
• BSM (Blind Spot Monitor) (if equipped)
• RCTA (Rear Cross Traffic Alert) (if equipped)
• BSM (Blind Spot Monitor) (if equipped)
• RCTA (Rear Cross Traffic Alert) (if equipped)
• PKSB (Parking Support Brake) (if equipped)
• RCD (Rear Camera Detection) (if equipped)

Follow the following correction methods.

• Check the voltage of the battery
• Check the sensors that the Toyota Safety Sense 3.0 uses for foreign matter covering them. Remove them if any.
• Vehicle with RCD (Rear Camera Detection): Check if the back door is open.

Indicates the sensors may not be operating properly.

• Check the rear bumper around the sensors   used by the BSM (if equipped), RCTA (if equipped) and Safe Exit Assist (if equipped) for foreign matter covering them. Remove them if any.
•  Check the sensors including camera sensors used by the Intuitive parking assist (if equipped) and PKSB (if equipped) for foreign matter covering them. Remove them if any.

When problems are solved and the sensors are operational, this indication may disappear by itself.

If "System Stopped Front Camera Low Visibility See Owner's Manual" is displayed

Indicates one of the following systems is disabled.

• PCS (Pre-Collision System)
• LDA (Lane Departure Alert)
• LTA (Lane Tracing Assist)
• AHB (Automatic High Beam)
• Dynamic radar cruise control
• RSA (Road Sign Assist)
• PDA (Proactive Driving Assist)

Follow the following correction methods.

• Using the windshield wipers, remove the dirt or foreign matter from the windshield.
• Using the air conditioning system, defog the windshield.

Close the hood, remove any stickers, etc. to clear the obstruction in front of the front camera.

If "System Stopped Front Camera Out of Temperature Range Wait until Normal Temperature" is displayed

Indicates one of the following systems is disabled.

• PCS (Pre-Collision System)
• LDA (Lane Departure Alert)
• LTA (Lane Tracing Assist)
• AHB (Automatic High Beam)
• Dynamic radar cruise control
• RSA (Road Sign Assist)
• PDA (Proactive Driving Assist)

Follow the following correction methods.

• If the front camera is hot, such as after the vehicle is parked in the sun, use the air conditioning system to decrease the temperature around the front camera
• If a sunshade was used when the vehicle was parked, depending on its type, the sunlight reflected from the surface of the sunshade may cause the temperature of the front camera to become excessively high
• If the front camera is cold, such after the vehicle is parked in an extremely cold environment, use the air conditioning system to increase the temperature around the front camera

If "System Stopped Front Radar Sensor Blocked Clean Radar Sensor" is displayed

Indicates one of the following systems is disabled.

• PCS (Pre-Collision System)
• LDA (Lane Departure Alert)
• LTA (Lane Tracing Assist)
• AHB (Automatic High Beam)
• Dynamic radar cruise control
• PDA (Proactive Driving Assist)

Follow the following correction methods.

• Check if there is any foreign matter attached to the radar sensor or radar sensor cover and clean them if necessary
• This message may be displayed when driving in an open area with few nearby vehicles or structures, such as a desert, grasslands, suburbs, etc.

The message may be cleared by driving the vehicle in an area with structures, vehicles, etc., nearby.

If "System Stopped Front Radar Sensor Out of Temperature Range Wait until Normal Temperature" is displayed

Indicates one of the following systems is disabled.

• PCS (Pre-Collision System)
• LDA (Lane Departure Alert)
• LTA (Lane Tracing Assist)
• AHB (Automatic High Beam)
• Dynamic radar cruise control
• PDA (Proactive Driving Assist)

Follow the following correction methods.

• The temperature of the radar sensor is outside of the operating range. Wait for the temperature to become appropriate.

If "System Stopped Front Radar In Self Calibration See Owner's Manual" is displayed

Indicates one of the following systems is disabled.

• PCS (Pre-Collision System)
• LDA (Lane Departure Alert)
• LTA (Lane Tracing Assist)
• AHB (Automatic High Beam)
• Dynamic radar cruise control
• PDA (Proactive Driving Assist)

Follow the following correction methods.

• Check if there is any foreign matter attached to the radar sensor or radar sensor cover and clean them if necessary
• The radar sensor may be misaligned and will be adjusted automatically while driving. Continue driving for a while.

If "Cruise Control Unavailable See Owner's Manual" is displayed

This message indicates that either the dynamic radar cruise control or the standard cruise control has been disabled-often due to repeatedly pressing the driving assist switch. In response, press the driving assist switch quickly and firmly.

If "Driver Monitor Out of Temperature Range Wait until Normal Temperature" is displayed (if equipped)

This alert means that the driver monitoring system is currently disabled because the temperature of its camera is outside the acceptable range. Wait until the temperature normalizes before relying on this feature.

If a message indicating the need for a dealer visit is displayed

When the multi-information display shows an alert that a system or component is malfunctioning, have your vehicle inspected by your dealer immediately.

If "Driver Monitor Unavailable See Owner's Manual" is displayed (if equipped)

This warning may appear if the driver monitor camera’s lens is dirty. Clean it carefully with a dry, soft cloth to restore normal operation.

If a message requiring rotary shifter operation is displayed

To prevent incorrect operation of the rotary shifter or unintended vehicle movement, the display may prompt you to shift positions. Follow the on-screen instructions and shift accordingly.

If a message advises you to refer to the Owner's Manual

When any of the following messages appear, follow the provided instructions:

• "Battery Low"
• "Check Charging System Close Charging Port Lid"
• "Charging system malfunction"
• "Charging stopped High energy use"

Moreover, if any of these alerts are displayed, they may indicate a more severe malfunction:

• "Entry & Start System Malfunction"
• "Traction battery system malfunction"
• "Accelerator system malfunction"
• "Plug-in Charging System Malfunction"
• "EV system malfunction"
• "Shift System Malfunction Apply Parking Brake Securely When Parking See Owner's Manual"
• "Shift System Malfunction See Owner's Manual"
• "Shift System Malfunction Stop in a Safe Place See Owner's Manual"
• "P Switch Malfunction Apply Parking Brake Securely When Parking See Owner's Manual"
• "Shift System Unavailable Apply Parking Brake Securely When Parking See Owner's Manual"
• "Battery Low Shifting Unavailable See Owner's Manual"

Additionally, if the message "Braking Power Low" appears, stop the vehicle immediately and contact your dealer.

NOTICE

If "High Power Consumption Power to Climate Temporarily Limited" is displayed frequently, it may signal a malfunction in the charging system or that the 12-volt battery is deteriorating. Have your vehicle inspected as soon as possible.

Similarly, if "Battery Low" appears often, the 12-volt battery might be failing; since a deteriorated battery could discharge when left unattended, have it checked by your dealer.

If "Maintenance Reqd. For Traction Battery At Your Dealer" is shown, the traction battery is due for inspection or replacement. Prompt attention is critical, as neglecting this could prevent the EV system from starting.

NOTICE

If the EV system does not start, contact your dealer immediately.

For instance, if you own a Toyota bZ4X, addressing these warnings without delay is crucial to maintaining both safety and optimal vehicle performance.