2008 Toyota Camry Owners Manual - Page 324

4-3. Do-it-yourself maintenance n Before recharging When recharging, the 12-volt battery produces hydrogen gas which is flammable and explosive. Therefore, observe the following before recharging: l If recharging with the 12-volt battery installed on the vehicle, be sure to disconnect the ground cable. l Make sure the power switch on the charger is off when connecting and disconnecting the charger cables to the 12-volt battery. n After recharging/reconnecting the 12-volt battery In some cases, the hybrid system may not start. Follow one or both of the following procedures: l After opening and closing the driver's door, wait 10 seconds then attempt to start the hybrid system. (If the system does not start first time, repeat the procedure.) l With the shift lever in P and the "POWER" switch OFF, open and close the driver's door, then attempt to start the hybrid system. If the system will not start even after multiple attempts at both methods, contact your Toyota dealer. 4 Maintenance and care 301