Toyota Corolla: Maintenance and care / Do-it-yourself maintenance

Emission inspection and maintenance (I/M) programs

Some states have vehicle emission inspection programs which include OBD (On Board Diagnostics) checks. The OBD system monitors the operation of the emission control system...

Do-it-yourself service precautions

If you perform maintenance by yourself, be sure to follow the correct procedure as given in these sections. Maintenance WARNING The engine compartment contains many mechanisms and fluids that may move suddenly, become hot, or become electrically energized...

Other information:

Toyota Corolla 2019-2026 Owners Manual: PCS (Pre-Collision System)

The pre-collision system uses a radar sensor and front camera to detect objects (®P.206) in front of the vehicle. When the system determines that the possibility of a frontal collision with an object is high, a warning operates to urge the driver to take evasive action and the potential brake pressure is increased to help the driver avoid the collision...

Toyota Corolla 2019-2026 Owners Manual: Initial screen

When the engine switch is turned to ACC or ON, the initial screen will be displayed and the system will begin operating. Caution screen After a few seconds, the caution screen will be displayed. After about 5 seconds or selecting “Continue”, the caution screen automatically switches to the next screen...