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2015- 2016 Focus – Windshield wipers May Slow Or Change Speeds During Extended Operation On Dry Glass, This Is A Normal Design Characteristic
2016 Focus the following was added to the 2nd Printing of the Owners Guide. “When wiping on dry glass, the wipers may switch to the next lower operating mode (low-speed or intermittent).
The previous operation mode may resume after the windshield becomes wet again. The wiper system for Focus has thermal protection built into the wiper motors, which prevents them from overheating.
If the customer has the wipers turned on and continues to leave them running after the glass is dry, the wiper system will begin to slow down as the motors heat up, eventually resulting in an Intermittent cycling.
The wipers will automatically speed back up when the glass is wet again.
No repairs should be attempted to change this design characteristic.
