Tesla Y 2019 Owner's Manual page 201

3. Carefully fold the HEPA filter gasket towards the front
of the vehicle to gain access to the low voltage jump
post.
4. Pull back the black seal to reveal the positive jump
post. Remove the red cover and connect the external
low voltage power supply's red positive (+) cable to
the red positive (+) jump post.
CAUTION: To avoid damaging the vehicle, do
not allow the positive cable to contact other
metal components.
5. The HEPA filter bolt (as shown in the following image
to the right) serves as the negative jump post.
Connect the external low voltage power supply's
black negative (-) cable the black negative (-) jump
post.
Roadside Assistance
Instructions for Transporters
6. Turn on the external power supply (refer to the
manufacturer's instructions) for 20-30 seconds.
CAUTION: If you leave the power supply on for
longer than 30 seconds, the low voltage battery
may not self-recover and the vehicle might not
be able to shift into Drive. Disconnect the
power supply and the low voltage battery to
enable another battery self-recovery attempt.
NOTE: If attempting to activate Transport Mode (to
winch the vehicle onto a flatbed truck), the low
voltage battery is not required to self-recover. Leave
the power supply connected continuously until the
vehicle has been secured.
7. Open the driver door and wait two minutes.
8. Ensure the vehicle is able to shift into Drive.
9. Replace the maintenance panel by placing it back in
its original location and pressing down until it is
secure.
10. Close the hood.
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