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 MANUALSCHEVROLET2012SUBURBAN 2WD V8-5.3LREPAIR AND DIAGNOSISLOCATIONSCOMPONENT LOCATIONSPOWERTRAIN COMPONENT VIEWSAUTOMATIC TRANSMISSION INTERNAL COMPONENTS (M99)
2012 Chevrolet Suburban 2WD V8-5.3L
Automatic Transmission Internal Components (M99)
2012 Chevrolet Suburban 2WD V8-5.3LSECTION Automatic Transmission Internal Components (M99)
Powertrain Component Views
Automatic Transmission Internal Components (M99)
6 - Automatic Transmission Auxiliary Fluid Pump
31 - Automatic Transmission Internal Mode Switch (IMS)
71 - Drive Motor with Generator Assembly - 1st Position
88 - Drive Motor with Generator Assembly - 2nd Position
307 - Control Solenoid Valve Assembly
447 - Automatic Transmission Output Shaft Speed (OSS) Sensor
RENDER: 1.0x
NO RELATED
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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.