If service brakes fail to operate while the vehicle is in motion, you can make an emergency stop with the parking brake. The stopping distance, however, will be much greater than normal.
WARNING - Parking brake
Applying the parking brake while the vehicle is moving at normal speeds can cause a sudden loss of control of the vehicle. If you must use the parking brake to stop the vehicle, use great caution in applying the brake.
Other features
Fuel economy auto reset
...
Trailer towing
If you are considering towing with your vehicle, you should first check with
your country's Department of Motor Vehicles to determine their legal requirements.
Since laws vary the requirements ...