OEM Heated Wash unit location on following vehicles:
Avalanche, Escalade, Silverado, Suburban, Sierra, Tahoe, Yukon.
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AlphaTherm Heated Wash is made in the USA
based on Automotive Industry Design & Process Standards  
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Heated wash
On/Off switch location
Unit location in engine compartment
Washer fluid hose location
Fuse diagram
Heated Wash fuse location
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Fuse box location in engine
compartment
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