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 MANUALSCHEVROLET2015SILVERADO 1500 HIGH COUNTRY, 5.3L ENG VIN C, RWD, GASREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESPROGRAMMING AND SETUP - ALL SYSTEMSREPAIR INSTRUCTIONSK71 TRANSMISSION CONTROL MODULE: PROGRAMMING AND SETUP (8L45/90)REPROGRAM CONTROL MODULE AFTER TRANSMISSION REPAIR/REPLACEMENT
2015 Chevrolet Silverado 1500 High Country, 5.3L Eng VIN C, RWD, Gas
Reprogram Control Module after Transmission Repair/Replacement
2015 Chevrolet Silverado 1500 High Country, 5.3L Eng VIN C, RWD, GasSECTION Reprogram Control Module after Transmission Repair/Replacement
To program an existing K71 Transmission Control Module, after a transmission repair/replacement, perform the following procedure:
- Install EL-49642 SPS programming support tool.
- Access the Service Programming System (SPS) and follow the on-screen instructions.
- Perform the SPS Transmission Control Module programming event. Choose one of the following screen prompts:
- Select Transmission Control Module - MCVM Operations, and follow the on-screen instructions. This will update the Solenoid Characterization data only.
- Select Transmission Control Module - Programming and follow the on-screen instructions. This will update the TCM calibration and the Solenoid Valve Characterization data.
- Perform the Transmission Service Fast Learn Procedure .
- With a scan tool, clear DTCs from the K71 Transmission Control Module.
- Ignition OFF for 2 minutes.
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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.