2003 Toyota Prius Owners Manual - Page 144

3. Powerful cooling and dehumidifying If the air conditioning does not work well with the "A/C" button on, push the "MAX" button. To cancel the "MAX" mode, push the "MAX" button again. To turn off the air conditioning, push the "A/C" button. With the "MAX" button on, the gasoline engine is frequently used. The air conditioning may not turn on with the selector lever in "N" position because the gasoline engine cannot start. If the "A/C" button indicator flashes, there is a problem in the air conditioning system and the air conditioning automatically shuts off. If this happens, take your vehicle to your Toyota dealer for service. For economical and environment-friendly use Usually, use the air conditioning with the "A/C" button on (economical and environment-friendly cooling). In this mode the gasoline engine starts and stops automatically and good fuel economy driving is achieved. To use the air conditioning in economical and environment-friendly way, we recommend the following setting: 1. Lower the setting temperature if you feel a little hot with the "A/C" button on. 2. If you feel still hot with the "A/C" button on, push the "MAX" button also. After the compartment cools, turn off the "MAX" mode only. 137