Toyota CH-R Owners Manual: Battery

Check the battery as follows.

■ Battery exterior Make sure that the battery terminals are not corroded and that there are no loose connections, cracks, or loose clamps.

  1. Terminals
  2. Hold-down clamp

Toyota CH-R. Do-it-yourself maintenance

■ Checking battery fluid If there are lines on the side of the battery: Check that the level is between the upper and lower lines.

  1. Upper line
  2. Lower line

If the fluid level is at or below the lower line, add distilled water.

Toyota CH-R. Do-it-yourself maintenance

If there are not lines on the side of the battery: Check the fluid level as follows.

1. Remove the vent plug.

2. Check the fluid level by looking directly at the cell.

If the fluid level is low, add distilled water.

3. Put the vent plug back on and close it securely.

■ Adding distilled water

4. Remove the vent plug.

5. Add distilled water.

6. Put the vent plug back on and close it securely.

■Before recharging When recharging, the battery produces hydrogen gas which is flammable and explosive. Therefore, observe the following before recharging:

  • If recharging with the battery installed on the vehicle, be sure to disconnect the ground cable.
  • Make sure the power switch on the charger is off when connecting and disconnecting the charger cables to the battery.

■After recharging/reconnecting the battery (vehicles with a smart key system)

  • The engine may not start. Follow the procedure below to initialize the system.
  1. Shift the shift lever to P.
  2. Open and close any of the doors.
  3. Restart the engine.
  • Unlocking the doors using the smart key system may not be possible immediately after reconnecting the battery. If this happens, use the wireless remote control or the mechanical key to lock/unlock the doors.
  • Start the engine with the engine switch in ACCESSORY mode. The engine may not start with the engine switch turned off. However, the engine will operate normally from the second attempt.
  • The engine switch mode is recorded by the vehicle. If the battery is reconnected, the vehicle will return the engine switch mode to the status it was in before the battery was disconnected. Make sure to turn off the engine before disconnecting the battery. Take extra care when connecting the battery if the engine switch mode prior to discharge is unknown.

If the system will not start even after multiple attempts at all methods above, contact your Toyota dealer.


■Chemicals in the battery Batteries contain poisonous and corrosive sulfuric acid and may produce hydrogen gas which is flammable and explosive. To reduce the risk of death or serious injury, take the following precautions while working on or near the battery:

  • Do not cause sparks by touching the battery terminals with tools.
  • Do not smoke or light a match near the battery.
  • Avoid contact with eyes, skin and clothes.
  • Never inhale or swallow electrolyte.
  • Wear protective safety glasses when working near the battery.
  • Keep children away from the battery.

■Where to safely charge the battery Always charge the battery in an open area. Do not charge the battery in a garage or closed room where there is insufficient ventilation.

■Emergency measures regarding electrolyte

  • If electrolyte gets in your eyes
    Flush your eyes with clean water for at least 15 minutes and get immediate medical attention. If possible, continue to apply water with a sponge or cloth while traveling to the nearest medical facility.
  • If electrolyte gets on your skin
    Wash the affected area thoroughly. If you feel pain or burning, get medical attention immediately.
  • If electrolyte gets on your clothes
    It can soak through clothing on to your skin. Immediately take off the clothing and follow the procedure above if necessary.
  • If you accidentally swallow electrolyte
    Drink a large quantity of water or milk. Get emergency medical attention immediately.

■When there is insufficient battery fluid Do not use if there is insufficient fluid in the battery. There is a possible danger that the battery may explode.



■When recharging the battery Never recharge the battery while the engine is running. Also, be sure all accessories are turned off.

■When adding distilled water Avoid overfilling. Water spilled during battery recharging may cause corrosion.

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