This Preliminary Information communication provides the technician with a list of modules to check for...
Chevrolet technical service bulletin PIT4989B for 2008-2013 Chevrolet Tahoe, 2008-2013 Chevrolet Silverado and 2008-2013 GMC Yukon and others.
- Bulletin number
- PIT4989B
- Component
- Equipment
- Summary
- This Preliminary Information communication provides the technician with a list of modules to check for communication with the scan tool, if the navigation radio does not display the current Hybrid mode. Dealer will use a scan tool to check communication with Accessory Direct current Power Control Module, Air Condition control module, Drive Motor Generator Power Inverter Module, Engine Control Module, Battery Energy Control Module, and Transfer Case Control Module. Repair the loss of communication with the affected module and the power flow should return to the radio display.
Vehicles covered
- Chevrolet Tahoe 2008-2013 200820092010201120122013
- Chevrolet Silverado 2008-2013 200820092010201120122013
- GMC Yukon 2008-2013 200820092010201120122013
- GMC Sierra 2008-2013 200820092010201120122013
- GMC Yukon XL 2008-2013 200820092010201120122013
- Cadillac Escalade 2009-2013 20092010201120122013
- GMC Yukon Denali 2008-2013 200820092010201120122013
- Cadillac Escalade ESV 2009-2013 20092010201120122013
- GMC Yukon Denali XL 2008-2013 200820092010201120122013
- GMC Sierra Denali 2008-2013 200820092010201120122013
- Cadillac Escalade EXT 2009-2013 20092010201120122013
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