LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2000 >> Seville STS >> Repair and Diagnosis >> External Pages >> Different car >> Section 216 (Cellular Communication System) >> Diagnostic Information and Procedures >> OnStar Reprogramming >> Vehicle Communication Interface Module (VCIM)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Vehicle Communication Interface Module (VCIM)

WARNING: This page is about a different car, the 2002 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Record the STID number from the label on the new module (10 Digits).
  2. Record the ESN number from the label on the new part, (11 digits, no letters).
  3. Install the new VCIM.
  4. After replacement, press and hold the OnStar® "End Call" button (black with white dot); watch for the OnStar® status light change from Green to Red to Green.
  5. After replacement, press the blue OnStar® button twice to connect to OnStar®. Tell the advisor that this vehicle has a new VCIM and a new STID number to put in the customers account. Tell the advisor that this vehicle has a new VCIM and a new ESN to put in the customers account. Follow any additional instructions given by the Advisor.
  6. The old CIM must be returned for core credit. Use the address label included in the original box. Failure to return core will result in a debit.
scientia non olet · About LEMON Manuals