Subaru WRX & WRX STI Manuals 2017 WRX & WRX STI Owner’s Manual | Page 512

Maintenance and service/Hill start assist system

Hill start assist system

Replacement of brake pad
and lining

Ensure that the Hill start assist system
operates properly under the following
circumstances.
1. Stop the vehicle on an uphill grade by
depressing the brake pedal (all models)
and clutch pedal (MT models only), with
the engine running.
2. Make sure that the vehicle does not
move backward for several seconds after
the brake pedal is released.
3. Then make sure the vehicle starts
climbing the grade by following the normal
starting procedures.
If the Hill start assist system does not
operate as described above, contact your
SUBARU dealer.

The disc brakes have audible wear
indicators on the brake pads. If the brake
pads wear close to their service limit, the
wear indicator makes a very audible
scraping noise when the brake pedal is
applied.
If you hear this scraping noise each time
you apply the brake pedal, have the brake
pads serviced by your SUBARU dealer as
soon as possible.

CAUTION

11-29

fore replacing the brake pad.
However, it is dangerous to disconnect the vehicle battery. We
recommend that you have your
SUBARU dealer replace the
brake pad.
. If you continue to drive despite
the scraping noise from the audible brake pad wear indicator, it
will result in the need for costly
brake rotor repair or replacement.

& Breaking-in of new brake
pads (models with electronic
parking brake system)
When replacing the brake pad, use only
genuine SUBARU parts. After replacement, the new parts must be broken in as
follows.
! Brake pad
While maintaining a speed of 30 to 40
mph (50 to 65 km/h), step on the brake
pedal lightly. Repeat this five or more
times. Also, apply and release the electronic parking brake five or more times.

. It is recommended that you disconnect the vehicle battery be– CONTINUED –