Drivetrain - Service 4WD Light On/DTC C0379 Symptom 08
TECHNICALBulletin No.: 10-04-19-001
Date: April 28, 2010
Subject: Service 4WD Light On, DTC C0379 Symptom 08 Set (Replace Front Axle Actuator)
Models:
2009-2010 Chevrolet Silverado, Suburban, Tahoe
2009-2010 GMC Sierra, Yukon
Vehicles Built Between September 1, 2008 and October 1, 2009
Condition
Some customers may comment that the Service 4WD light is on. Upon further investigation, a technician may find DTC C0379 Symptom 08 stored.
Cause
This condition may be caused by intermittent operation of the front axle actuator, caused by cold weather.
Correction
Follow normal diagnostics for DTC C0379 Symptom 08. If the condition is not resolved, do NOT replace the TCCM, replace the front axle actuator with GM P/N 26060073. Refer to Front Drive Axle Actuator Replacement in SI.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table above.
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