Navigation
OnStar navigation requires the Directions and Connections service plan.
Push 
to receive directions or have
them sent to the vehicle navigation screen. Destinations can also be forwarded to
the vehicle from Google Maps™ or MapQuest.com. The OnStar mapping database is continuously
updated. Visit www.onstar.com for coverage maps.
See also:
Replacing Airbag System Parts after a Crash
WARNING
A crash can damage the airbag systems in the vehicle. A damaged airbag system
may not work properly and may not protect you and your passenger(s) in a crash,
resulting in serious injury o ...
Under the Hood
The Yukon Hybrid uses a two-mode hybrid system. The system augments the SUV's
V-8 engine with two electric motors, both powered by a 300-volt battery pack. A
cylinder-deactivation system cuts powe ...
Checking Brake Fluid
Check brake fluid by looking at the brake fluid reservoir. See Engine Compartment Overview on page 10‑6.
The fluid level should be above MIN. If it is not, have the brake hydraulic system che ...