Key Highlights of the Various Shift Schedules

Extreme Cold: Oil temperature at start up below -16°F
- Goes to "Cold" schedule above -12°F oil temperature
- Park, Reverse, Neutral and 2nd gear only (prevents shifting which may fail a clutch with frequent shifts)

Cold Oil temperature at start up above -12°F and below 36°F
- Goes to "Warm" schedule above 40°F oil temperature
- Delayed 2-3 upshift (approximately 22-31 MPH)
- Delayed 3-4 upshift (45-53 MPH)
- Early 4-3 coastdown shift (approximately 30 MPH)
- Early 3-2 coastdown shift (approximately 17 MPH)
- High speed 4-2, 3-2, 2-1 kickdown shifts are prevented
- No EMCC

Warm: Oil temperature at start up above 36°F and below 80°F
- Goes to "Hot" schedule above 80°F oil temperature
- Normal operation (upshift, kickdowns, and coastdowns)
- No EMCC

Hot: Oil temperature at start up above 80°F
- Goes to "Overheat" schedule above 240°F oil temperature (250°F for 96 and prior MY)
- Normal operation (upshifts, kickdowns, and coastdowns)
- Full EMCC, No PEMCC except to engage FEMCC
(Except at closed throttle at speeds above 70-83 MPH)

Overheat:
96 and prior MY - Oil temperature above 250°F or engine coolant temperature above 230°F
- Goes to "Hot" below 240°F oil temperature or "Super Overheat" above 260°F oil temperature
- Delayed 2-3 upshift (25-32 MPH)
- Delayed 3-4 upshift (41-48 MPH)
- 3rd gear FEMCC from 30-48 MPH
- 3rd gear PEMCC from 27-31 MPH (93-97 MY only)

97 MY - Oil temperature above 240°F or engine coolant temperature above 244°F
- Goes to "Hot" below 230°F oil temperature or "Super Overheat" above 240°F oil temperature
- Delayed 2-3 upshift (25-32 MPH)
- Delayed 3-4 upshift (41-48 MPH)
- 3rd gear FEMCC from 30-48 MPH
- 3rd gear PEMCC from 27-31 MPH

Super Overheat:
97 MY - Oil temperature above 240°F
- Goes back to "Overheat" below 240°F oil temperature
- All "Overheat" shift schedules features apply
- 2nd gear PEMCC above 22 MPH
- Above 22 MPH the torque converter will not unlock unless the throttle is closed (i.e. at 50 MPH a 4th FEMCC to 3rd FEMCC shift will be made during a part throttle kickdown or a 4th FEMCC to 2nd PEMCC shift will be made at wide open throttle) or if a wide open throttle 2nd PEMCC to 1 kickdown is made.

97 and prior MY - Oil temperature above 260°F
- Goes back to "Overheat" below 260°F oil temperature
- All "Overheat" shift schedules features apply
- 2nd gear PEMCC above 22 MPH
- Above 22 MPH the torque converter will not unlock unless the throttle is closed (i.e. at 50 MPH a 4th FEMCC to 3rd FEMCC shift will be made during a part throttle kickdown or a 4th FEMCC to 2nd PEMCC shift will be made at wide open throttle) or if a wide open throttle 2nd PEMCC to 1 kickdown is made.

Causes For Operation In The Wrong Temperature Shift Schedule:

Extreme Cold or Cold shift schedule at start up:
- Defective engine coolant temperature sensor (calculated oil temperature vehicles only)
- Defective battery/ambient temperature sensor (calculated oil temperature vehicles only)
- Defective PCM (calculated oil temperature vehicles only)
- Defective thermistor circuit. (TRS equipped only)

Overheat or Super Overheat Shift Schedule After Extended Operation:
- Operation in city traffic or stop and go traffic
- Engine idle speed too high - Stuck AIS motor
- Aggressive driving in low gear
- Trailer towing in OD gear position (use "3" position if frequent shifting occurs)
- Cooling system failure causing engine to operate over 230°F
- Engine coolant temperature stays low too long - If engine coolant temperature drops below 1 50°F, the transmission will disengage EMCC. Extended operation with the EMCC disengaged will cause the transmission to overheat.
- A defective brake switch will cause the EMCC to disengage. Extended operation with the EMCC disengaged will cause the transmission to overheat.
- Transmission fluid overfilled (Thermistor equipped only)
- Transmission cooler or cooler lines restricted (Thermistor equipped only)
- Defective thermistor circuit. (TRS equipped only)