2013-2018 Toyota Avalon 4 Door When trouble arises -> If your vehicle overheats User Manual
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When trouble arises -> If your vehicle overheats for Your Toyota Avalon 4 Door Fourth Generation (2013-2018)

418  
7-2. Steps to take in an emergency  
If your vehicle overheats  
The following may indicate that your vehicle is overheating:  
The needle of the engine coolant temperature gauge (P. 79)  
enters the red zone or a loss of engine power is experienced.  
(For example, the vehicle speed does not increase.)  
“Engine Coolant Temp is High” is shown on the multi-information  
display.  
Steam comes out from under the hood.  
Correction procedures  
1
Stop the vehicle in a safe place and turn off the air conditioning sys-  
tem, and then stop the engine.  
2
If you see steam:  
Carefully lift the hood after the steam subsides.  
If you do not see steam:  
Carefully lift the hood.  
3
After the engine has cooled  
down sufficiently, inspect the  
hoses and radiator core (radia-  
tor) for any leaks.  
Radiator  
1
Cooling fan  
2
If a large amount of coolant  
leaks, immediately contact your  
Toyota dealer.  
4
The coolant level is satisfactory  
if it is between the “F” and “L”  
lines on the reservoir.  
Reservoir  
1
“F” line  
2
“L” line  
3
Radiator cap  
4
419  
7-2. Steps to take in an emergency  
5
Add engine coolant if neces-  
sary.  
Water can be used in an emer-  
gency if engine coolant is unavail-  
able.  
6
Start the engine and turn the air conditioning system on to check  
that the radiator cooling fans operate and to check for coolant leaks  
from the radiator or hoses.  
The fans operate when the air conditioning system is turned on immedi-  
ately after a cold start. Confirm that the fans are operating by checking the  
fan sound and air flow. If it is difficult to check these, turn the air condition-  
ing system on and off repeatedly. (The fans may not operate in freezing  
temperatures.)  
7
If the fans are not operating:  
Stop the engine immediately and contact your Toyota dealer.  
If the fans are operating:  
Have the vehicle inspected at the nearest Toyota dealer.  
7
420  
7-2. Steps to take in an emergency  
WARNING  
When inspecting under the hood of your vehicle  
Observe the following precautions.  
Failure to do so may result in serious injury such as burns.  
If steam is seen coming from under the hood, do not open the hood until  
the steam has subsided. The engine compartment may be very hot.  
Keep hands and clothing (especially a tie, a scarf or a muffler) away from  
the fans and belts.  
Do not loosen the radiator cap and the  
coolant reservoir cap while the engine  
and radiator are hot.  
Serious injury, such as burns, may  
result from hot coolant and steam  
released under pressure.  
NOTICE  
When adding engine coolant  
Wait until the engine has cooled down before adding engine coolant.  
When adding coolant, do so slowly. Adding cool coolant to a hot engine too  
quickly can cause damage to the engine.  
To prevent damage to the cooling system  
Observe the following precautions:  
Avoid contaminating the coolant with foreign matter (such as sand or dust  
etc.).  
Do not use any coolant additive.  

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