Toyota Yaris: Brake System / Brake Assist

Toyota Yaris XP210 (2020-2025) Owner's Manual / When Driving / Brake / Brake System / Brake Assist

During emergency braking situations when it is necessary to depress the brake pedal with greater force, the brake assist system provides braking assistance, thus enhancing braking performance.

When the brake pedal is depressed hard or depressed more quickly, the brakes apply more firmly.

When the brake pedal is depressed hard or depressed more quickly, the pedal will feel softer but the brakes will apply more firmly. This is a normal effect of the brake assist operation and does not indicate a malfunction.
When the brake pedal is depressed hard or depressed more quickly, a motor/pump operation noise may be heard. This is a normal effect of the brake assist and does not indicate a malfunction.
The brake assist equipment does not supersede the functionality of the vehicle’s main braking system.

Brake Pad Wear Indicator

When the disc brake pads become worn, the built-in wear indicators contact the disc plates. This causes a screeching noise to warn that the pads should be replaced...

Hill Launch Assist (HLA)(If equipped)

Hill Launch Assist (HLA) is a function which assists the driver in accelerating from a stop while on a slope. When the driver releases the brake pedal and depresses the accelerator pedal while on a slope, the function prevents the vehicle from rolling...

Other information:

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Repair

REPAIR PROCEDURE 1. REPAIR INTAKE VALVE SEAT NOTICE: While repairing the intake valve seat, make sure to constantly check the valve seat width and valve seating position. Release the cutter gradually to make the intake valve seat smooth. (a) Using a 45° cutter, resurface the intake valve seat so that the intake valve seat width is more than the standard...

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table...