Transmission Driven PTO Gear
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The Allison LCT-1000 transmission provides the PTO gear with the vehicles PTO option package. If the vehicle option package does not include PTO, then the PTO gear will not be included in the transmission.
The illumination of the background text of the PTO switch is provided through the dimming circuit controlled by the BCM.