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: Air conditioning filter

The air conditioning filter must be changed regularly to maintain air conditioning efficiency. Removing the air conditioning filter 1 Turn the engine switch off. 2 Open the glove box. Slide off the damper (if equipped). 3 Push in the glove box on the vehicle’s outer side to disconnect the claws...

Toyota Corolla 2019-2026 Owners Manual: By using a smart phone or DCM

A - Content provider Provides contents to the application server. B - Application server Provides applications to the system or a smart phone. C - Smart phone Using the Toyota mobile application, communication is relayed between the system, application server and contents provider...