Toyota Yaris: Exterior Care / Underbody Maintenance

Toyota Yaris XP210 (2020-2025) Owner's Manual / Maintenance and Care / Appearance Care / Exterior Care / Underbody Maintenance

Road chemicals and salt used for ice and snow removal and solvents used for dust control may collect on the underbody. If not removed, they will speed up rusting and deterioration of such underbody parts as fuel lines, frame, floor pan, and exhaust system, even though these parts may be coated with anti-corrosive material.

Thoroughly flush the underbody and wheel housings with lukewarm or cold water at the end of each winter. Try also to do this every month. Pay special attention to these areas because they easily hide mud and dirt. It will do more harm than good to wet down the road grime without removing it.

The lower edges of doors, rocker panels, and frame members have drain holes that should not be clogged. Water trapped there will cause rusting.

WARNING

Dry off brakes that have become wet by driving slowly, releasing the accelerator pedal and lightly applying the brakes several times until the brake performance returns to normal

Driving with wet brakes is dangerous. Increased stopping distance or the vehicle pulling to one side when braking could result in a serious accident. Light braking will indicate whether the brakes have been affected.

Bright-Metal Maintenance

Use tar remover to remove road tar and insects. Never do this with a knife or similar tool. To prevent corrosion on bright-metal surfaces, apply wax or chrome preservative and rub it to a high luster...

Aluminum Wheel Maintenance (if equipped)

A protective coating is provided over the aluminum wheels. Special care is needed to protect this coating. NOTICE Do not use any detergent other than mild detergent...

Other information:

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Check For Intermittent Problems

CHECK FOR INTERMITTENT PROBLEMS HINT: Inspect the vehicle ECM using check mode. Intermittent problems are easier to detect with the GTS when the ECM is in check mode. In check mode, the ECM uses 1 trip detection logic, which is more sensitive to malfunctions than normal mode (default), which uses 2 trip detection logic...

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Vehicle Control History

VEHICLE CONTROL HISTORY CHECK VEHICLE CONTROL HISTORY (a) Connect the GTS to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the GTS on. (d) Enter the following menus: Powertrain / Engine / Utility / Vehicle Control History (RoB). Powertrain > Engine > Utility Tester Display Vehicle Control History (RoB) Vehicle Control History (RoB) Item Code Tester Display Measurement Item Diagnostic Note X0600 Auxiliary Battery Voltage Low at Start History of low battery voltage at engine control system start - X0601 Auxiliary Battery Voltage Low at IG OFF History of low battery voltage when ignition switch off - X0602 Auxiliary Battery Discharge at IG OFF History of auxiliary battery becoming discharged when ignition switch off - X0603 Auxiliary Battery Discharge at Running History of auxiliary battery becoming discharged while vehicle being driven - X0606 Auxiliary Battery Voltage Low during Running History of low battery voltage while vehicle being driven - X0607 Auxiliary Battery Voltage High during Running History of high battery voltage while vehicle being driven - CLEAR VEHICLE CONTROL HISTORY (a) Connect the GTS to the DLC3...