2010 Lexus GS 450h Owners Manual - Page 573
2010 Lexus GS 450h Manual
Page 573 highlights
5-2. Steps to take in an emergency Start the engine of the second vehicle. Increase the engine speed slightly and maintain at that level for approximately 5 minutes to recharge the 12 volt battery of your vehicle. STEP 5 Open and close any of the doors with the "POWER" switch is OFF. STEP 6 Maintain the engine speed on the second vehicle and turn the "POWER" switch to the ON mode, then start the vehicle's hybrid system. STEP 7 Make sure the "READY" light comes on. If the light does not come on, contact your Lexus dealer. STEP 8 Once the vehicle's 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 checked at your Lexus dealer as soon as possible. STEP 4