Electrical - Instrument Panel Blanks Out/Inoperative
TECHNICALBulletin No.: 10-08-49-003
Date: May 17, 2010
Subject: Intermittent Instrument Panel Cluster (IPC) Inoperative, Driver Information Center (DIC) Blanks Out (Reprogram IPC)
Models:
2010 Chevrolet Equinox
2010 GMC Terrain
All Built Prior to November 15, 2009
Condition
In rare cases, some customers may comment that on ignition start up, intermittently, the IPC lights do not come on, the IPC gauges are inoperative, or the DIC goes blank. The Malfunction Indicator Lamp (MIL) may also come on.
Cause
This condition may be caused by a software state or anomaly, which can contribute to one or more of the above conditions.
Correction
Important
On certain IPCs that are inoperative, the cluster could lock up in sleep mode. Cycling the ignition will not unlock it from sleep mode. Disconnect the battery or fuse for at least 3 minutes and re-apply the power to unlock the cluster. This procedure is required prior to reprogramming an IPC that is locked up in sleep mode. DO NOT replace the IPC or Body Control Module (BCM) for this concern.
Reprogram the IPC with the latest software calibration.
Note
A limited number of early build Equinox vehicles may experience an error when attempting to reprogram the IPC. Should you experience this condition when reprogramming the IPC, please contact the Techline Customer Support Center (TCSC) for revised calibrations.
VINS that MAY experience this condition will have VIN sequence numbers between 200008 and 200575.
Important
Select the correct calibration files for the appropriate vehicle configuration (body style) and RPO codes.
A revised calibration has been developed to address this condition. Technicians are to reprogram the IPC using the Service Programming System (SPS) with the latest software available on TIS2WEB. Refer to Instrument Cluster Programming and Setup in SI.
When using a Tech 2(R) or a Multiple Diagnostic Interface (MDI) for reprogramming, ensure that it is updated with the latest software version.
During programming, the battery voltage must be maintained within the proper range of 12-15 Volts. Only use the approved Midtronics(R) PSC 550 Battery Maintainer (SPS Programming Support Tool EL-49642) or equivalent during programming.
Warranty Information
For vehicles repaired under warranty, use the table above.
Disclaimer