OnStar Services
See also:
Manual Lumbar
Manual Lumbar
If equipped, increase or decrease manual lumbar support by turning the knob forward or rearward. ...
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 ...
Noise
One thing those shoppers might find objectionable is the noise —
specifically, wind noise and outside noise intrusion. Wind noise, an issue on
highways, wasn't extremely loud, but there was a no ...





