MaintenanceandCare -> Window Washer Fluid for Your Toyota Yaris 4 Door Fourth Generation (2021-2026)

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5-3. Owner Maintenance  
Window Washer Fluid  
Inspecting Washer Fluid Level  
Inspect fluid level in the washer  
fluid reservoir; add fluid if neces-  
sary.  
E
Use plain water if washer fluid is unavailable.  
But use only washer fluid in cold weather to prevent it from freezing.  
State or local regulations may restrict the use of volatile organic compounds  
(VOCs), which are commonly used as anti-freeze agents in washer fluid. A  
washer fluid with limited VOC content should be used only if it provides ade-  
quate freeze resistance for all regions and climates in which the vehicle will  
be operated.  
Front and rear washer fluid is supplied from the same reservoir.  
WARNING  
Use only windshield washer fluid or plain water in the reservoir  
Using radiator antifreeze as washer fluid is dangerous. If sprayed on the  
windshield, it will dirty the windshield, affect your visibility, and could result  
in an accident.  
Using Washer Fluid Without Anti-freeze Protection in Cold Weather  
Operating your vehicle in temperatures below 40 °F (4 °C) using washer  
fluid without anti-freeze protection is dangerous as it could cause impaired  
windshield vision and result in an accident. In cold weather, always use  
washer fluid with anti-freeze protection.  
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