Easy
16:32 10.07.2016 82.144.151.XXX1. Indication of a critical problem with the car, e.g. puncture warning or damage.*
* indicates these are the only messages that may be passed to the driver whilst he is in the car and on the track, from the time the car leaves the garage for the first time after the pit lane is open on the day of the race until the start of the race.
Takže během závodu by mu to sdělovat neměli... FIA se v těch pravidlech sama jednou zamotá.