Subaru Crosstrek 2020 Manual page 383

A) Booster battery
B) Strut mounting nut
In case of emergency/Jump starting
(1) Connect one jumper cable to the
positive (+) terminal on the discharged
battery.
(2) Connect the other end of the
jumper cable to the positive (+) term-
inal of the booster battery.
(3) Connect one end of the other cable
to the negative (−) terminal of the
booster battery.
(4) Connect the other end of the cable
to the strut mounting nut of the vehicle
with the discharged battery.
Make sure that the cables are not near any
moving parts and that the cable clamps are
not in contact with any other metal.
5. Start the engine of the vehicle with the
booster battery and run it at moderate
speed. Then start the engine of the vehicle
that has the discharged battery.
6. When finished, carefully disconnect
the cables in exactly the reverse order.
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