Languages
The vehicle can be programmed to respond in French or Spanish.
Push 
and ask an Advisor.
Advisors can speak French or Spanish.
See also:
Fuels in Foreign Countries
Never use leaded gasoline or any other fuel not recommended in the previous text
on fuel. Costly repairs caused by use of improper fuel would not be covered by the
vehicle warranty.
To check the ...
OnStar Overview
If equipped, this vehicle has a comprehensive, in-vehicle system that can
connect to a live Advisor for Emergency, Security, Navigation, Connection, and
Diagnostic Services.
The OnStar system ...
Going & Stopping
Again with the comparison, but the Escalade and Yukon Denali I tested have
the exact same 6.2-liter V-8, yet they felt worlds apart. Sure, the Escalade is
tuned to turn out 403 horsepower versus t ...