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.
2020 Chevrolet Silverado 2500 HD Custom, 4D Pickup Crew Cab, 4WDFACTORY OEM SERVICE PROCEDURE
Transmission Control Module: Remove & Replace
| Applies To | Note | Standard Hours | Warranty Hours | Skill Level |
|---|---|---|---|---|
| Gas, Control Solenoid Valve and Transmission Control Module Assembly | Includes: Transmission Programming and Calibration of Learned Parameters. Includes: R&I Valve Body Assembly. Includes: Check and adjust Transmission Fluid level with fluid temperature within parameters. | 3.0 | 2.3 | B |
Factory Service Tools
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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.