Add-on Electrical Equipment
The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment on page 9‑112. Added electrical equipment may interfere with the operation of the OnStar system and cause it to not operate.
See also:
Cleaning the Display
Notice: Using abrasive cleaners when cleaning glass surfaces could scratch the
glass. Use only a soft cloth and do not spray cleaner directly on the system as
it could affect the mechanical parts. ...
Interior details and flexibility
The GMC Terrain's rich, premium interior is influenced by industrial
sculpture and exudes refinement exemplified by contrast stitching and fine
materials that create a structured look throughout t ...
Safety Belt Messages
BUCKLE SEATBELT
This message displays as a reminder when the safety belt is not buckled. ...





