1211-4. Hybrid system
1
For safety and security
C-HR_HV_OM_Europe_OM10720E 
■ Charging the 12-volt battery 
 P. 752 
■ After  the  12-volt  battery  has  discharged  or  when  the  terminal  has  been 
removed and installed during exchange, etc. 
The  gasoline  engine  may  not  stop  even  if  the  vehicle  is  being  d riven  by  the 
hybrid  battery  (traction  battery).  If  this  continues  for  a  few  days,  contact  any 
authorized  Toyota  retailer  or  Toyota  authorized  repairer,  or  an y  reliable 
repairer. 
■ Sounds and vibrations specific to a Hybrid Electric Vehicle 
There may be no engine sound or vibration even though the vehic le is able to 
move with the “READY” indicator is illuminated. For safety, app ly the parking 
brake and make sure to shift the shift lever to P when parked. 
The  following  sounds  or  vibrations  may  occur  when  the  hybrid  sy stem  is 
operating and are not a malfunction: 
● Motor sounds may be heard from the engine compartment. 
● Sounds  may  be  heard  from  the  hybrid  battery  (traction  battery) when  the 
hybrid system starts or stops. 
● Relay operating sounds such as a snap or soft clank will be emitted from the 
hybrid battery (traction battery), behind the rear seats, when  the hybrid sys- 
tem is started or stopped. 
● Sounds from the hybrid system may be heard when the back door is open. 
● Sounds  may  be  heard  from  the  transmission  when  the  gasoline  engine 
starts or stops, when driving at low speeds, or during idling. 
● Engine sounds may be heard when accelerating sharply. 
● Sounds may be heard due to regenerative braking when the brake pedal is 
depressed or as the accelerator pedal is released. 
● Vibration may be felt when the gasoline engine starts or stops. 
● Cooling fan sounds may be heard from the air intake vent. (P. 124)