2011 Lexus LS 600h Owners Manual - Page 525

5-2. Steps to take in an emergency Make sure the "READY" indicator comes on. If the indicator does not comes on, contact your Lexus dealer. STEP 7 Once the hybrid system has started, remove the jumper cables in the exact reverse order in which they were connected. Once the hybrid system starts, have the vehicle inspected at your Lexus dealer as soon as possible. STEP 6 n Starting the hybrid system when the 12-volt battery is discharged The hybrid system cannot be started by push-starting. n Avoiding a discharged 12-volt battery l Turn off the headlights and the audio system while the hybrid system is off. l Turn off any unnecessary electrical components when the vehicle is running at a low speed for an extended period, such as in heavy traffic. n When the 12-volt battery is removed or discharged The hybrid system may not start. (→P. 445) 528