LEMON Manuals: Even more car manuals for everyone
Home >> Hummer >> 2008 >> H3 Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 272 (Cellular System, Entertainment System & Navigation System) >> Diagnostic Information and Procedures >> OnStar Button LED Inoperative >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2009 GMC Canyon and 2009 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, command the Green LED ON and OFF with a scan tool while observing the green LED on the inside rearview mirror. The green LED should turn ON and OFF when commanded.
  2. Command the red LED ON and OFF with a scan tool while observing the red LED on the inside rearview mirror. The red LED should turn ON and OFF when commanded.
scientia non olet · About LEMON Manuals