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5-2. Steps to take in an emergency
Highlander_HV_U_(L/O_0808)
If your vehicle overheats
Correction procedures
■ If the needle of the engine coolant temperature gauge enters
the red zone
Stop the vehicle in a safe place and turn off the air condition-
ing system.
Check to see if steam is coming out from the engine area.
If you see steam:
Stop the hybrid system. Carefully lift the hood after the
steam subsides and then restart the hybrid system.
If you do not see steam:
Leave the hybrid system operating and carefully lift the
hood.
Check if the cooling fans are operating.
If the fans are operating:
Wait until the engine coolant temperature gauge begins to
fall and then stop the hybrid system.
If the fans are not operating:
Stop the hybrid system immediately and call your Toyota
dealer.
The following may indicate that your vehicle is overheating:
● The needle of the engine coolant temperature gauge enters the
red zone:
The engine may be overheating.
● “Hybrid System Overheat” is shown on the multi-information dis-
play:
The power control unit may be overheating.
Follow the correction procedure as described below.
STEP
1
STEP
2
STEP
3
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