1999 Nissan Frontier Owner's Manual - Page 53

system checked by an authorized NISSAN dealer. If an abnormality occurs in the system, the anti-lock function ceases but the ordinary brakes continue to operate normally. If the light comes on while you are driving, contact an authorized NISSAN dealer for repair. Brake pad wear warning The disc brake pads have audible wear warnings. When a brake pad requires replacement, it makes a high pitched scraping sound when the vehicle is in motion whether or not the brake pedal is depressed. Have the brakes checked as soon as possible if the warning sound is heard. Overdrive off indicator light (if so equipped) This light comes on when the overdrive switch is pushed to the OFF position. Malfunction indicator light (MIL) If the malfunction indicator light comes on steady or blinks while the engine is running, it may indicate a potential emission control problem. The malfunction indicator light may also come on steady or blink if the fuel filler cap has not been closed tightly or if the fuel tank is nearly empty. Check to make sure the fuel cap is secure and that you have at least three gallons (14 liters) of fuel in the fuel tank. Key reminder chime The chime sounds when the driver's door is opened and the key is left in the ignition switch. Take the ignition key when you leave the vehicle. The malfunction indicator light will come on in one of two ways: ¼ Malfunction indicator light on steady − An emission control system malfunction has been detected. Have the vehicle inspected by an authorized NISSAN dealer. You do not need to have your vehicle towed to the dealer. ¼ Malfunction indicator light blinking − An engine misfire has been detected which may damage the emission control system. To reduce or avoid emission control system damage: ¼ do not drive at speeds above 45 MPH (72 km/h). ¼ avoid hard acceleration or deceleration. ¼ avoid steep uphill grades. ¼ if possible, reduce the amount of cargo being hauled or towed. The malfunction indicator light may stop blinking and come on steady. Have the vehicle inspected by an authorized NISSAN dealer. You do not need to have your vehicle towed to the dealer. Light reminder chime A chime sounds if the driver's door is opened with the headlight switch on unless the ignition key is in the ON position. Turn the headlight switch off when you leave the vehicle. Operation After driving for a while, the light should remain off if no other potential emisssion control system problem exists. Instruments and controls 2-11