2008 Toyota Prius Owners Manual - Page 164

2-1. Driving procedures n If the hybrid system does not start The hybrid system immobilizer system may not have been deactivated. (→P. 81) n If the "READY" light does not come on If the "READY" light does not come on when you press the power switch with the shift lever in "P" and the brake pedal pressed, contact your Toyota dealer immediately. n When the "POWER" switch indicator flashes in amber The system may be malfunctioning. Have the vehicle inspected by your Toyota dealer immediately. n Auto power OFF function The "POWER" switch will automatically turn OFF when left in ACCESSORY mode for 1 hour or more. n Electronic key battery depletion →P. 44 n When the electronic key battery is discharged →P. 396 n Conditions affecting operation →P. 42 n Leak detection pump Several hours after the engine is turned off, you may hear a sound coming from underneath the luggage compartment for several minutes. This is normal operation and does not indicate a malfunction. 134 PRIUS_U_(L/O_0802)