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Special Application Services
Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000 km/ 3,000 mi. Have underbody flushing service performed once a year. ...

Collision Parts
Genuine GM Collision parts are new parts made with the same materials and construction methods as the parts with which the vehicle was originally built. Genuine GM Collision parts are the best cho ...

Setting the Tone (Bass/Midrange/Treble)
BASS/MID/TREB (Bass, Midrange, or Treble): To adjust bass, midrange, or treble: 1. Press the TUNE/TONE knob until the tone control tabs display. 2. Continue pressing the TUNE/ TONE knob, o ...