2004 Mazda MAZDA3 Owner's Manual - Page 150

Driving Your Mazda Warning/Indicator Lights and Beep Sounds M Check Engine Light M ABS Warning Light* If this light comes on while driving, the vehicle may have a problem. It is important to note the driving conditions when the light came on and consult an Authorized Mazda Dealer. The check engine light may come on in the following cases: • The fuel tank level being very low or approaching empty. • The engine's electrical system has a problem. • The emission control system has a problem. • The fuel-filler cap is missing or not tightened securely. If the check engine light remains on or flashes continuously, do not drive at high speeds and consult an Authorized Mazda Dealer as soon as possible. The warning light stays on for a few seconds when the ignition switch is turned to the ON position. If the ABS warning light stays on while you're driving, the ABS control unit has detected a system malfunction. If this occurs, your brakes will function normally as if the vehicle had no ABS. Should this happen, consult an Authorized Mazda Dealer as soon as possible. WARNING ABS Warning Light and Brake Warning Light on at the Same Time: Driving when the brake system warning light and ABS warning light are on at the same time is dangerous. When both lights are on, the rear wheels could lock more quickly in an emergency stop than under normal circumstances. Don't drive with both lights on, and contact an Authorized Mazda Dealer to have the brakes inspected as soon as possible. *Some models. 5-35