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: If the electronic key does not operate properly

If communication between the electronic key and vehicle is interrupted or the electronic key cannot be used because the battery is depleted, the smart key system and wireless remote control cannot be used. In such cases, the doors can be opened and the engine can be started by following the procedure below...

Toyota Corolla 2019-2026 Owners Manual: Type B: Function achieved by using DCM and the system

The functionality of Wi-Fi® Hotspot is made possible through the shared work of the DCM and the system. This service is available by subscription and supported by the Toyota response center, which operates 24 hours a day, 7 days a week. Before using the function ■ Subscription After you have signed the Telematics Subscription Service Agreement and are enrolled, you can begin receiving servic..