Toyota RAV4 manuals

Toyota Sienna 2010-2019 Owners Manual: If a warning light turns on or a warning buzzer sounds

Toyota Sienna 2010-2019 Owners Manual / When trouble arises / Steps to take in an emergency / 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 Toyota dealer.

Warning light and warning buzzer list
















Warning light

Warning light/Details/Actions

Brake system warning light (warning buzzer)*1 Indicates that:
  • The brake fluid level is low; or
  • The brake system is malfunctioning

This light also 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.

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

Charging system warning light*2 Indicates a malfunction in the vehicle’s charging system

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

Low engine oil pressure warning light (warning buzzer)*2 Indicates that the engine oil pressure is too low.

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

Malfunction indicator lamp Indicates a malfunction in:
  • The electronic engine control system;
  • The electronic throttle control system;
  • The electronic automatic transaxle control system

- Have the vehicle inspected by your Toyota dealer immediately

SRS warning light 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 Toyota dealer immediately.

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

- Have the vehicle inspected by your Toyota dealer immediately.

Electric power steering system warning light (warning buzzer) Indicates a malfunction in the EPS (Electric Power Steering) system

- Have the vehicle inspected by your Toyota dealer immediately.

Pre-collision system warning light*2 Indicates a malfunction in the PCS (Pre-Collision System) The warning light will operate as follows, even when the system is not malfunctioning:
  • The light will flash quickly when the system is operating.

  • The light will turn on when the pre-collision braking is disabled.
  • The light will turn on when the system cannot temporarily be used.

- Have the vehicle inspected by your Toyota dealer immediately.

Slip indicator Indicates a malfunction in:
  • The VSC (Vehicle Stability Control) system;
  • The TRAC (Traction Control) system; or
  • The hill-start assist control system*2

The light will flash when the VSC or the TRAC system is operating.

- Have the vehicle inspected by your Toyota dealer immediately.

Open door warning light (warning buzzer)*2, 3 Indicates that one or more of the doors or the back door is not fully closed

- Check that all the doors and the back door are closed.

Low fuel level warning light Indicates that remaining fuel is approximately 3.0 gal.

(11.4 L, 2.5 Imp.gal.) or less

- Refuel the vehicle.

Seat belt reminder light (warning buzzer)*4 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.

Master warning light A buzzer sounds and the warning light comes on and flashes to indicate that the master warning system has detected a malfunction.

Tire pressure warning light When the light comes on: Low tire inflation pressure such as
  • Natural causes
  • Flat tire (, 568)

- Adjust the tire inflation pressure to the specified level.

The light will turn off after a few minutes. In case the light does not turn off even if the tire inflation pressure is adjusted, have the system checked by your Toyota dealer.

When the light comes on after blinking for 1 minute: Malfunction in the tire pressure warning system

- Have the system checked by your Toyota dealer

Third seat warning light*2 Indicates that the third seat operation is not yet complete.

- Complete the third seat operation

*1: Parking brake engaged warning buzzer: *2: If equipped
*3: Open door warning buzzer: *4: Driver’s seat belt buzzer: The driver’s seat belt buzzer sounds to alert the driver that his or her seat belt is not fastened. Once the engine switch is turned to the “ON” position (vehicles without a smart key system) or IGNITION ON mode (vehicles with a smart key system), the buzzer sounds for 6 seconds. If the vehicle reaches a speed of 12 mph (20 km/h), the buzzer sounds once. If the seat belt is still unfastened after 30 seconds, the buzzer will sound intermittently for 10 seconds. Then, if the seat belt is still unfastened, the buzzer will sound in a different tone for 20 more seconds.

Front passenger’s seat belt buzzer: The front passenger’s seat belt buzzer sounds to alert the front passenger that his or her seat belt is not fastened. The buzzer sounds once if the vehicle reaches a speed of 12 mph (20 km/h). If the seat belt is still unfastened after 30 seconds, the buzzer will sound intermittently for 10 seconds.

Then, if the seat belt is still unfastened, the buzzer will sound in a different tone for 20 more seconds.

SRS warning light

This warning light system monitors the airbag sensor assembly, front impact sensors, side impact sensors (front door), side impact sensors (rear), driver’s seat position sensor, driver’s seat belt buckle switch, 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 assemblies, airbags, interconnecting wiring and power sources.

Front passenger detection sensor, seat belt reminder and warning buzzer

If the malfunction indicator lamp comes on while driving

First check the following:

The light will go off after several driving trips.

If the light does not go off even after several trips, contact your Toyota dealer as soon as possible.

Electric power steering system warning light (warning buzzer)

When the 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.

When the tire pressure warning light comes on

Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire pressure warning reset switch will not turn off the tire pressure warning light.

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).

When a tire is replaced with a spare tire (vehicles with compact spare tire)

The compact spare tire is not equipped with a tire pressure warning valve and transmitter. If a tire goes flat, the tire pressure warning light will not turn off even though the flat tire has been replaced with the spare tire.

Replace the spare tire with the repaired tire and adjust the tire inflation pressure. The tire pressure warning light will go off after a few minutes.

Conditions that the tire pressure warning system may not function properly

If the tire pressure warning light frequently comes on after blinking for 1 minute

If the tire pressure warning light frequently comes on after blinking for 1 minute when the engine switch is turned to the “ON” position (vehicles without a smart key system) or IGNITION ON mode (vehicles with a smart key system), have it checked by your Toyota dealer.

Customization that can be configured at Toyota dealer

The vehicle speed linked seat belt reminder buzzer can be disabled.

(Customizable features ) However, Toyota recommends that the seat belt reminder buzzer be operational to alert the driver and front passenger when seat belts are not fastened.

Warning buzzer

In some cases, the buzzer may not be heard because of noisy place or an audio sound.

WARNING

If both the ABS and the brake system warning lights remain on

Stop your vehicle in a safe place immediately and contact your Toyota dealer. The vehicle will become extremely unstable during braking, and the ABS system may fail, which could cause an accident resulting in death or serious injury.

When the electric power steering system warning light comes on

The steering wheel may become extremely heavy.

If the steering wheel becomes heavier than usual when operating, hold firmly and operate 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.

Vehicles with standard tires:

  • Stop your vehicle in a safe place as soon as possible. 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. Check the tires.

    If a tire is flat, change it with the spare tire and have the flat tire repaired by the nearest Toyota dealer.

  • Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could lose control of the steering wheel or the brakes.

Vehicles with run-flat tires:

  • 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 tire replaced by the nearest Toyota 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 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 (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).

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.

Fuel pump shut off system
To minimize the risk of fuel leakage when the engine stalls or when an airbag inflates upon collision, the fuel pump shut off system stops the supply of fuel to the engine. Follow the procedure bel ...

If a warning message is displayed
If a warning message is shown on the multi-information display, stay calm and perform the following actions: Master warning light The master warning light also comes on or flashes in order ...

Other materials:

Terminals of ECU
1. CHECK POWER SLIDE DOOR ECU LH (WITH POWER SLIDE DOOR) Disconnect the P25 and P26 ECU connectors, and check the voltage and resistance of each terminal of the wire harness side connectors. If the result is not as specified, there may be a malfunction on the wire harness side. ...

Data list / active test
1. USING INTELLIGENT TESTER  Connect the intelligent tester to the DLC3.  Monitor the ECU data by following the prompts on the tester screen. HINT: The intelligent tester has a "Snapshot" function which records the monitored data. Refer to the intelligent tester ope ...

Precaution
NOTICE: Perform the RESET MEMORY (AT initialization) when replacing the automatic transaxle assembly, engine assembly or ECM (See page AX-16). Perform the REGISTRATION (VIN registration) when replacing the ECM (See page ES-15). HINT: RESET MEMORY can not be ...

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