LEMON Manuals: Even more car manuals for everyone
Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 15 (Cellular, Entertainment, And Navigation - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Backup Battery Reset

Backup Battery Reset

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

The Backup Battery Timer Reset needs to be performed anytime a new OnStar backup battery is replaced. The OnStar module monitors certain elements of the backup battery (including age) and failure to perform this reset procedure could result in future needless replacement of the backup battery.

  1. Using a scan tool, in the K73 Telematics Communication Module under Configuration/Reset Functions perform the Backup Battery Timer Reset procedure.
  2. Follow the scan tool directions to complete the procedure.
  3. At the end of the procedure clear any DTC's
scientia non olet · About LEMON Manuals