GM > Transmission > Auto TCC

TCC Lock During Shift

• TCC Lock During Shift: This switch determines if the TCC will remain locked during a shift. Note: This is extremely hard on the transmission and the TCC (if you enable this expect things to break).

TCC Apply/Release Speed
These tables determine the speed at which the TCC is applied or released in relation to TPS and Gear.

• Normal: Apply/Release in Normal mode.
• Normal D1: Apply/Release in Normal D1 mode.
• Normal D2: Apply/Release in Normal D2 mode.
• Normal - 5th: Apply/Release in Normal mode, 5th gear.
• Normal - 6th: Apply/Release in Normal mode, 6th gear.
• Cruise: Apply/Release in Cruise mode.
• Cruise D2: Apply/Release in Cruise D2 mode.
• Cruise - 5th: Apply/Release in Cruise mode, 5th gear.
• Cruise - 6th: Apply/Release in Cruise mode, 6th gear.
• Performance: Apply/Release in Performance mode.
• Performance D1: Apply/Release in Performance D1 mode.
• Performance D2: Apply/Release in Performance D2 mode.
• Performance - 5th: Apply/Release in Performance mode, 5th gear.
• Performance - 6th: Apply/Release in Performance mode, 6th gear.
• Hot: Apply/Release in Hot mode.
• Hot D2: Apply/Release in Hot D2 mode.
• Hot - 5th: Apply/Release in Hot mode, 5th gear.
• Hot - 6th: Apply/Release in Hot mode, 6th gear.
• 4WD Low: Apply/Release in 4WD Low mode.
• 4WD Low D1: Apply/Release in 4WD Low D1 mode.
• 4WD Low D2: Apply/Release in 4WD Low D2 mode.
• Tap Up/Tap Down: Apply/Release in TUTD mode.
• Tap Up/Tap Down - 5th: Apply/Release in TUTD mode, 5th gear.
• Tap Up/Tap Down - 6th: Apply/Release in TUTD mode, 6th gear.
• Tap Up/Tap Down Hot: Apply/Release in TUTD mode.
• Tap Up/Tap Down Hot - 5th: Apply/Release in TUTD mode, 5th gear.
• Tap Up/Tap Down Hot - 6th: Apply/Release in TUTD mode, 6th gear.

TCC Full Throttle Apply/Release Speed

• Normal: WOT Apply/Release in Normal mode.
• Normal - 5th: WOT Apply/Release in Normal mode, 5th gear.
• Normal - 6th: WOT Apply/Release in Normal mode, 6th gear.
• Cruise: WOT Apply/Release in Cruise mode.
• Cruise - 5th: WOT Apply/Release in Cruise mode, 5th gear.
• Cruise - 6th: WOT Apply/Release in Cruise mode, 6th gear.
• Hot: WOT Apply/Release in Hot mode.
• Hot - 5th: WOT Apply/Release in Hot mode, 5th gear.
• Hot - 6th: WOT Apply/Release in Hot mode, 6th gear.
• Performance: WOT Apply/Release in Performance mode.
• Performance - 5th: WOT Apply/Release in Performance mode, 5th gear.
• Performance - 6th: WOT Apply/Release in Performance mode, 6th gear.
• Hot Engine: WOT Apply/Release in Hot Engine mode.
• Hot Engine - 5th: WOT Apply/Release in Hot Engine mode, 5th gear.
• Hot Engine - 6th: WOT Apply/Release in Hot Engine mode, 6th gear.
• 4WD Low: WOT Apply/Release in 4WD Low mode.
• 4WD Low - 5th: WOT Apply/Release in 4WD Low mode, 5th gear.
• 4WD Low - 6th: WOT Apply/Release in 4WD Low mode, 6th gear.

TCC Release TPS
This table is the required TPS at a certain speed and gear to release the TCC.

• Normal: Release TPS in Normal Mode.
• Cruise: Release TPS in Cruise Mode.
• Performance: Release TPS in Performance Mode.

TCC Duty Cycle

• Maximum: This is the maximum TCC duty cycle commanded by the PCM for a given desired line pressure and transmission oil temperature.
• Minimum: This is the minimum TCC duty cycle commanded by the PCM for a given desired line pressure and transmission oil temperature.