About the Security System
If Model 3 does not detect an authenticated
phone, key fob, or key card and a locked door
or trunk is opened, an alarm sounds and the
headlights and turn signals flash. To deactivate
the alarm, press any button on the mobile app
or tap your key card or key fob against
Remove
Remove the headliner. See Headliner (Remove and Install).
Measure and record the gaps from the fixed roof glass to windshield,
body sides, and backlight glass.
Note: The gap measurements are used for the installation of the
fixed roof glass.
Apply masking tape to protect the paint