Lexus IS 350C 2012 Manual page 406

4-1. Maintenance and care
NOTICE
To prevent damage to the windshield wiper arms
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When lifting the wiper arms away from the windshield, pull the driver side wiper
arm upward first, and repeat for the passenger side. When returning the wipers to
their original position, do so from the passenger side first.
When using an automatic car wash (vehicles with the rain-sensing windshield
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wipers only)
Set the wiper switch to the off position.
If the wiper switch is in "AUTO", the wipers may operate and the wiper blades may
be damaged.
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