See also:

Engine Coolant
The cooling system in the vehicle is filled with DEX-COOL engine coolant. This coolant is designed to remain in the vehicle for 5 years or 240 000 km (150,000 mi), whichever occurs first. The fol ...

Capacities and Specifications
Engine Specifications ...

Automatic Crash Response
In a crash, built in sensors can automatically alert an OnStar advisor who is immediately connected to the vehicle to see if you need help. ...