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: Automatic High Beam

The Automatic High Beam uses a camera sensor located behind the upper portion of the windshield to assess the brightness of the lights of vehicles ahead, streetlights, etc., and automatically turns the high beams on or off as necessary. WARNING ■Limitations of the Automatic High Beam Do not overly rely on the Automatic High Beam...

Toyota Corolla 2019-2026 Owners Manual: Typical tire symbols

► Full-size tire A - Tire size B - DOT and Tire Identification Number (TIN) C - Uniform tire quality grading For details, see “Uniform Tire Quality Grading” that follows. D - Location of treadwear indicators E - Tire ply composition and materials Plies are layers of rubber-coated parallel cords...