2004 Ford F350 Owner Guide 3rd Printing - Page 13

Instrument Cluster damage your catalytic converter. Drive in a moderate fashion (avoid heavy acceleration and deceleration) and have your vehicle serviced immediately. Under engine misfire conditions, excessive exhaust temperatures could damage the catalytic converter, the fuel system, interior floor coverings or other vehicle components, possibly causing a fire. Check fuel cap (if equipped): Illuminates when the fuel cap may not be properly installed. Continued driving with this light on may cause the Service engine soon warning light to come on. Refer to Fuel filler cap in the Maintenance and Specifications chapter. Check gage: Illuminates when any CHECK of the following conditions has GAGE occurred: • The engine coolant temperature is high. • The engine oil pressure is low. • The fuel gauge is at or near empty. Brake system warning light: To confirm the brake system warning light is functional, it will momentarily illuminate when the ignition is turned to the ON position when the engine is not running, or in a position between ON and START, or by applying the parking brake when the ignition is turned to the ON position. If the brake system warning light does not illuminate at this time, seek service immediately from your dealership. Illumination after releasing the parking brake indicates low brake fluid level and the brake system should be inspected immediately by your servicing dealership. Driving a vehicle with the brake system warning light on is dangerous. A significant decrease in braking performance may occur. It will take you longer to stop the vehicle. Have the vehicle checked by your dealer immediately. 13 2004 F250/350/450/550 (f23) Owners Guide (post-2002-fmt) USA English (fus)