The sat-nav is not getting signal. What should I do?
na-vi-ga-TO-re — stress on fourth syllable. se-GNA-le — stress on second syllable. The 'gn' is /ɲ/.
Say this to a rental agent or when calling roadside assistance if the in-car GPS system loses signal and you need guidance on alternatives.
Il navigatore (the sat-nav) — standard Italian term for GPS navigation system. Non prende il segnale (is not getting signal) — prende (gets, third-person of prendere). Cosa faccio (what should I do) — rhetorical problem question.
Posso usare Google Maps sul mio telefono?
Can I use Google Maps on my phone?
Almost always a better option than in-car rental GPS systems
Il navigatore dell'auto non è aggiornato.
The car's sat-nav is not up to date.
Aggiornato (updated) — rental car GPS maps are often years out of date
C'è un supporto per il telefono in macchina?
Is there a phone holder in the car?
Supporto (holder/mount) — using your phone for navigation requires a holder in Italy
Using a phone for navigation in a car in Italy requires it to be in a holder — holding a phone while driving is illegal and fines are substantial. Phone holders are cheap and available at Italian autogrill service stations.