2002 Toyota Prius Owners Manual - Page 177

If your vehicle will not start- (a) Simple checks Before making these checks, make sure you have followed the correct starting procedure given in "How to start the hybrid system" on page 162 in Section 4 and that you have sufficient fuel. Also check whether the other keys will start the hybrid system. If they work, your key may be broken. Have the key checked at your Toyota dealer. If none of your keys work, the hybrid vehicle immobiliser system is possibly broken. Call your Toyota dealer. (See "Keys" on page 18 in Section 2-1.) If the instrument cluster dims or the instrument cluster display turns off with the ignition switch on- 1. Check that the auxiliary battery terminals are tight and clean. 2. If the auxiliary battery terminals are O.K., the auxiliary battery is discharged. You may try jump starting. See "(b) Jump starting" for further instructions. If the instrument cluster is shown in appropriate brightness with the ignition switch turned to on- The hybrid vehicle system is suspected to be faulty. Contact your Toyota dealer. (b) Jump starting If the auxiliary battery is discharged, the hybrid system can be started by jump starting. Depending on the the vehicle condition, the engine may not start. To avoid serious personal injury and damage to your vehicle which might result from battery explosion, acid burns, electrical burns, or damaged electronic components, these instructions must be followed precisely. If you are unsure about how to follow this procedure, we strongly recommend that you seek the help of a competent qualified technician or towing service. NOTICE Hybrid vehicles started. cannot be push- 168