Operation CHARM
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Sierra 3500 4WD V8-6.6L DSL Turbo
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Control Module HVAC
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Technical Service Bulletins
Manuals through 2025 now available!
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Control Module HVAC: Technical Service Bulletins
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Recalls
Campaign - HVAC Blower Not Functional Runs Continuously
Customer Interest
A/C - Ticking Noise From Instrument Panel/DTC's Set
All Technical Service Bulletins
Campaign - HVAC Blower Not Functional Runs Continuously
A/C - Ticking Noise From Instrument Panel/DTC's Set