Toyota Yaris: Fuel and Engine Exhaust Precautions / Fuel Requirements

Toyota Yaris XP210 (2020-2026) Owner's Manual / Before Driving / Fuel and Emission / Fuel and Engine Exhaust Precautions / Fuel Requirements

Vehicles with catalytic converters or oxygen sensors must use ONLY UNLEADED FUEL, which will reduce exhaust emissions and keep spark plug fouling to a minimum.

To achieve maximum engine performance, use the specified fuel.

Toyota Yaris. Fuel Requirements

* 1: U.S. federal law requires that octane ratings be posted on gas station pumps.

Fuel with a rating lower than 87 octane (91 RON) could cause the emission control system to lose effectiveness. It could also cause engine knocking and serious engine damage.

Gasoline blended with oxygenates such as alcohol or ether compounds are generally referred to as oxygenated fuels. The common gasoline blend that can be used with your vehicle is ethanol blended at no more than 10 %. Gasoline containing alcohol, such as ethanol or methanol, may be marketed under the name “Gasohol”.

Vehicle damage and drivability problems resulting from the use of the following may not be covered by the warranty.

  • Gasohol containing more than 10 % ethanol.
  • Gasoline or gasohol containing methanol.
  • Leaded fuel or leaded gasohol.

NOTICE

  • USE ONLY UNLEADED FUEL.

    Leaded fuel is harmful to the catalytic converter and oxygen sensors and will lead to deterioration of the emission control system and or failures.

  • This vehicle can only use oxygenated fuels containing no more than 10 % ethanol by volume. Damage to the vehicle may occur when ethanol exceeds this recommendation, or if the gasoline contains any methanol. Stop using gasohol of any kind if your vehicle engine is performing poorly.
  • Never add fuel system additives other than a Toyota genuine product, otherwise the emission control system could be damaged. Consult your Toyota dealer for details.

    Fuel and Engine Exhaust Precautions

    ..

    Emission Control System

    This vehicle is equipped with an emission control system (the catalytic converter is part of this system) that enables the vehicle to comply with existing exhaust emissions requirements...

    Other information:

    Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Brake Booster Pressure Sensor(running) (P055500,P05552A)


    DESCRIPTION The engine stop and start ECU determines changes in the brake booster assembly pressure based on the voltage signal received from the vacuum sensor assembly in the brake booster assembly. If the output value of the vacuum sensor assembly remains the same even though the brake booster assembly pressure changes when the brake pedal is operated or the vehicle is being driven, the engine stop and start ECU judges that the sensor is stuck...

    Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Brake System Control Module "A" System Voltage System Voltage Low (C137BA2)


    DESCRIPTION If a malfunction is detected in the power supply circuit, the skid control ECU (brake actuator assembly) stores this DTC and the fail-safe function prohibits ABS operation. This DTC is stored when the +BS terminal voltage meets one of the DTC detection conditions due to a malfunction in the power supply or charging circuit such as the auxiliary battery or alternator circuit, etc...

    Categories

    Refueling

    Before refueling, close all the doors, windows, and the liftgate/trunk lid, and switch the ignition OFF.

    To open the fuel-filler lid, pull the remote fuel-filler lid release.

    Toyota Yaris. Refueling

    To remove the fuel-filler cap, turn it counterclockwise. Attach the removed cap to the inner side of the fuel-filler lid.

    read more

     
    Copyright © 2026 www.toyaris4.com