2011 Toyota Highlander Owners Manual - Page 55

1-1. Hybrid system l If the shift lever is in N, the hybrid battery (traction battery) will not be charged. When driving in heavy traffic, operate the vehicle with the shift lever in D to avoid discharging the battery. l To help prevent the 12-volt battery from becoming discharged, drive the vehicle at least once a month, and operate the accessories only when the "READY" indicator is on. When parking the vehicle, make sure the doors is closed and all lights are turned off. n After the 12-volt battery has discharged or has been changed or removed The gasoline engine may not stop even if the vehicle is running on the hybrid battery (traction battery). If this continues for a few days, contact your Toyota dealer. n Sounds and vibrations specific to a hybrid vehicle There may be no engine sounds or vibration even though the vehicle is able to move. Always shift the shift lever to P when parked. The following sounds or vibrations may occur when the hybrid system is operating, and are not a malfunction: l Motor sounds may be heard from the engine compartment. l Sounds may be heard from the hybrid battery (traction battery) under the rear seat when the hybrid system starts or stops. l Sounds from the hybrid system may be heard when the back door is open. l Sounds may be heard from the hybrid transmission when the engine is started or stopped, or while the engine is idling. l Engine sounds may be heard when accelerating sharply. l Sounds may be heard due to regenerative braking when the brake pedal is depressed or accelerator is loosened. l Vibration may be felt when the gasoline engine starts or stops. l Cooling fan sounds may be heard from the air intake vents under the rear seat. n Maintenance, repair, recycling, and disposal Contact your Toyota dealer regarding maintenance, repair, recycling and disposal. Do not dispose of the vehicle yourself. 32