Chevrolet Trax Owner's Manual page 216

214 Driving and operating
Antilock brake system
(ABS)
Antilock brake system (ABS)
prevents the wheels from locking.
ABS starts to regulate brake
pressure as soon as a wheel shows
a tendency to lock. The vehicle
remains steerable, even during hard
braking.
ABS control is made apparent
through a pulse in the brake pedal
and the noise of the regulation
process.
For optimum braking, keep the brake
pedal fully depressed throughout the
braking process, despite the fact that
the pedal is pulsating. Do not reduce
the pressure on the pedal.
The ABS control can be known by
vibration and noise of the ABS
process.
To stop the vehicle in an emergency,
keep depressing the footbrake even
if the brake pedal vibrates.
Do not decrease the pressure
applied to the footbrake.
When you start the vehicle after
ignition is switched on, mechanical
sounds can be heard. This is normal
ABS function.
See Antilock brake system (ABS)
warning light on page 88.
Fault
{Warning
If there is a fault in the ABS, the
wheels may be liable to lock due to
braking that is heavier than normal.
The advantages of ABS are no
longer available. During hard
braking, the vehicle can no longer
be steered and may swerve.
Have the cause of the fault remedied
by a repairer.