Ignition Switch and Key
The ignition switch has four positions: ACCESSORY, OFF, RUN, and START. See Fig..
Fig. 1, Ignition Switch Positions
In the OFF position, the key slot is vertical; the key can be inserted and removed only in this position. The following can be operated in the OFF position (regardless of whether the key is inserted): low beam headlights, taillights, brake lights, road lights, clearance lights, turn signals, hazard warning lights, horn, CB radio, clock, and electric oil pan heater.
In the ACCESSORY position, the key is turned counterclockwise. The radio (if so equipped), mirror heat, air dryer, backup lights, and all of the components that are operable in the OFF position are operable in the ACCESSORY position.
All electrical systems are operable in the RUN position. The warning lights and the buzzer for low air pressure and low oil pressure operate until minimum pressures are built up.
Important: The propane engine is equipped with an amber wait to start indicator. The indicator light illuminates when the ignition is in the RUN position prior to engine start-up. Do not crank the engine until the wait to start indicator lamp goes out. See General Description for the location of the wait to start indicator.
Note: Some vehicles are equipped with a fuel door interlock option. When the fuel door is open, the vehicle will not start.
Turn the key fully clockwise to the START position to start the engine. When the engine starts, release the key.