OnStar Services

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Under the Hood
A 4.6-liter Northstar V-8 with variable valve timing produces 320 horsepower at 6,400 rpm and 310 pounds-feet of torque at 4,400 rpm. Premium fuel is recommended. The five-speed-automatic transmis ...

Cleaning the RSE Overhead Console
When cleaning the RSE overhead console surface, use only a clean cloth dampened with clean water. Infotainment System 7-41 Cleaning the Video Screen When cleaning the video screen, use only a clea ...

Using UHP with Infotainment Controls
Pairing a Phone If your mobile phone has simple pairing or auto discovery features, they need to be turned off before the mobile phone can be paired to the UHP system. Reference the mobile phone ...