For 1990-2009 cars only
The OnStar Communication Interface Module (CIM) monitors the Remote Control 3-Button Mirror Assembly for stuck buttons.
DTC Parameters
| • | Any one button is depressed for 15 seconds. |
| • | This test runs every 300 ms. |
| • | Illuminate the Red OnStar telltale. |
Diagnostic Aids
If the condition is suspected to be intermittent, initiate multiple button presses in order to duplicate the condition.
