Escalade, Suburban, Tahoe, Yukon, Denali, DenaliXL, YukonXL 1999-2005
Air Mix/Mode Actuator (Blend Door)
Before servicing any electrical component, the ignition key must be in the
or LOCK position and all electrical loads must be OFF, unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.