Tesla MODEL S Operating Manual page 62

Instrument Panel
Indicator Description
Appears when some of the stored energy in the Battery may not be available due
to cold weather conditions. If Model S is plugged in, you can heat your Battery by
turning on climate control with the mobile app. The snowflake icon disappears
when the Battery is sufficiently warm.
Vehicle power is currently being limited because the energy remaining in the
Battery is low or the vehicle's systems are being heated or cooled.
Flashes green when the left turn signal is operating. Both turn signal indicators
flash green when the hazard warning flashers are operating.
Flashes green when the right turn signal is operating. Both turn signal indicators
flash green when the hazard warning flashers are operating.
Driving 61