Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2009TAHOE 4WD V8-6.0L HYBRIDREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTRANSMISSION CONTROL SYSTEMSTECHNICAL SERVICE BULLETINS
2009 Chevrolet Tahoe 4WD V8-6.0L Hybrid
Transmission Control Systems: Technical Service Bulletins
2009 Chevrolet Tahoe 4WD V8-6.0L HybridSECTION Technical Service Bulletins
- Recalls
- Customer Interest
- By Symptom
- All Technical Service Bulletins
- Engine Controls - Non-GM Engine/Transmission Calibration ID
- A/T Controls - Snapshot Data With Tech2(R) Information
- Electrical - Electrical Malfunction/Multiple DTCs
- A/T Controls - Service Fast Learn Adapts Characteristics
- Drivetrain - 4 Wheel Drive Message/DTC C0387/C0569 Set
- Drivetrain - Service 4WD Light On/DTC C0379 Symptom 08
- A/T Controls - DTC P1825/P182E or P1915/MIL ON
- A/T - Control Valve/Solenoid Cleaning Information
- A/T - Hybrid Transmissions Service Auxiliary Fluid Pump
- Campaign - Transmission Clutch Housing Fracture
- A/T - Chuggle/Shudder On Hard Acceleration
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.