Drive Range, Third Gear: Notes
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
As vehicle speed increases and operating conditions become appropriate, the transmission control module (TCM) processes input signals from the output speed sensor, the throttle position (TP) sensor and other vehicle sensors to determine the precise moment to command ON the normally low pressure control solenoid 4 trim to regulate 1-3 reverse clutch apply. At the same time the normally high pressure control solenoid 3 trim is commanded OFF, and the transmission shifts into Third gear.