Using Jump Starting With Another Battery - Volvo XC90 Owner's Manual

STARTING AND DRIVING
Symbols in the driver display
Symbol Specification
If the symbol flashes, it indicates a
fault has occurred. Read the mes-
sage on the driver display.
Fault in brake system.
Related information
•
Brake functions (p. 368)
•
Using the parking brake (p. 372)
•
Parking brake (p. 371)
•

Using jump starting with another battery

(p. 353)
374
Hill start assist
Hill start assist, Hill Start Assist (HSA), prevents
the car from rolling backwards when starting on
an uphill gradient. When reversing uphill, it pre-
vents the car from rolling forwards.
The function means that the pedal pressure in
the brake system remains for several seconds
while the driver's foot is moved from brake pedal
to accelerator pedal.
The temporary braking effect releases after sev-
eral seconds or when the driver accelerates.
Hill start assist is available even if the function for
automatic braking when stationary (Auto hold) is
deactivated.
Related information
•
Brake functions (p. 368)
•
Automatic braking when stationary (p. 374)
Automatic braking when stationary
Automatic braking when stationary (Auto Hold)
means that the driver can release the brake
pedal while maintaining braking effect when the
car has stopped at traffic lights or a junction.
When the car has stopped, the brakes are acti-
vated automatically. The function can use either
foot brake or parking brake to hold the car sta-
tionary and it works on all gradients. When the
accelerator pedal is depressed again, the brakes
are released.
When braking to a stop on a downhill or uphill
gradient - depress the brake pedal a bit harder
before releasing to ensure that the car does not
roll at all.
If the driver switches off the engine when the car
is stationary, the parking brake is applied.