Front Wheel Drive - Volvo FM Handbook

The terrain-TCS allows larger differences in wheel
speeds between the front axle and the driving axle.
When the terrain-TCS is engaged, it takes longer for
the EBS system to learn the difference in wheel sizes.

Front wheel drive

1 Make sure none of the wheels are spinning
2 Engage the differential lock between the rear axles.
The control lamp on the instrument panel will come
on.
3 Move the front-wheel drive switch to its bottom
position.
The control lamp on the instrument panel will come
on.
Driving 135
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J4015829