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Most Common Electrical Problems for New Cars
  • Dead Battery
  • Damaged Alternator or Alternator Belt
  • Damaged Starter
  • Damaged Fuses & Loose Wires (soy bean based anyone? :) )
  • Loose Spark Plugs
  • Ignition Issues
https://www.markjacobsontoyota.com/toyota-hybrid-faqs.htm
Do hybrids require more maintenance?
In a hybrid, the engines are off some of the time, the brakes are regenerative, saving pad & rotor life, there is no transmission fluid under load, there are no starters, alternators or belts to be replaced. In fact, much of the hybrid maintenance schedule is nearly identical to a conventionally powered vehicle's maintenance schedule.
 

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Most Common Electrical Problems for New Cars
  • Dead Battery
  • Damaged Alternator or Alternator Belt
  • Damaged Starter
  • Damaged Fuses & Loose Wires (soy bean based anyone? :) )
  • Loose Spark Plugs
  • Ignition Issues
https://www.markjacobsontoyota.com/toyota-hybrid-faqs.htm
Do hybrids require more maintenance?
In a hybrid, the engines are off some of the time, the brakes are regenerative, saving pad & rotor life, there is no transmission fluid under load, there are no starters, alternators or belts to be replaced. In fact, much of the hybrid maintenance schedule is nearly identical to a conventionally powered vehicle's maintenance schedule.

I am curious about "there are no starters". How does the hybrid restart when it is sitting at a light standing still?
 

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In the transaxle Toyota has placed two electric motors , MG1 or motor generator one and MG2 . MG1 provides the power for the engine to crank using a flex plate between the output shaft of the engine and the electric motor. MG1 also provides all the 12 volt power and recharges the main battery and the starting battery and it assists MG2 with providing the power to the front axles to move the Rav.
 

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In the transaxle Toyota has placed two electric motors , MG1 or motor generator one and MG2 . MG1 provides the power for the engine to crank using a flex plate between the output shaft of the engine and the electric motor. MG1 also provides all the 12 volt power and recharges the main battery and the starting battery and it assists MG2 with providing the power to the front axles to move the Rav.
Actually, MG1 feeds the hybrid inverter system which then charges the 12 volt and 240 volt batteries with separate power supplies. MG1 has no direct connection with the presence or lack thereof for the 12 volt accessory system. That power is derived from the traction battery's ~240 volts through the inverter/converter system.
 
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