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.
2024 GMC Sierra 1500 AT4X, 6.2L Eng VIN LFACTORY OEM SERVICE PROCEDURE
Replace and Program Control Module or Reprogram Control Module
- Access the Service Programming System (SPS) and follow the on-screen instructions.
- On the SPS Supported Controllers screen, select K212 Gear Shift Control Module - Programming and follow the on-screen instructions.
- Clear DTCs.
- If DTCs U1962 and U1972 set, perform Serial Data Authentication Configuration procedure: Serial Data Authentication Configuration .
- All OK.
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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