LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volvo >> 2007 >> C70 Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Electronics - Design And Function - 4 Of 4 >> Transmission Control Module >> Function >> Gearshift Program
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Gearshift Program

Economy mode 

When driving at normal acceleration, the transmission control module (TCM) uses a pre-set shifting program, optimized to shift for economy driving. This shifting program is suitable for "normal" driving which provides earlier up shifts and lock-up. In addition the transmission oil pressure is adjusted to provide smooth gear engagement.

Sport mode 

The transmission switches from economy mode to sport mode if the accelerator pedal (AP) is pressed down quickly. The conditions are that the throttle opens and the vehicle speed exceeds 50 km/h. As soon as the accelerator pedal (AP) is moved less quickly economy mode is resumed. In the sport mode shifting program the shifting points are adjusted to provide the best possible performance. Down shifting occurs at lower engine speed (RPM).

Extreme mode 

At wide open throttle (WOT) the kick-down function is engaged and the transmission shifts to the lowest possible gear. In this way a boost of power is achieved when overtaking for example.

Winter mode 

Winter mode is selected using the button on the top panel of the gear selector assembly. Winter mode enables starting off in a high gear to prevent the wheels from spinning on a slippery surface. This mode can also be used in other difficult situations in which the driver needs more direct control over gear selection. When is selected, the car starts in 3rd gear. There is automatic shifting between 3rd, 4th and 5th gears.

When winter mode is selected a lights on the dashboard.

If kick-down is activated in Winter mode, the transmission uses all gears for maximum performance.