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 MANUALSCHEVROLET2025TAHOE COMMERCIAL, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESPROGRAMMING AND SETUP - ALL SYSTEMSREPAIR INSTRUCTIONSK4 ASSIST STEP CONTROL MODULE: PROGRAMMING AND SETUPREPLACE AND PROGRAM CONTROL MODULE OR REPROGRAM CONTROL MODULE
2025 Chevrolet Tahoe Commercial, 4WD
Replace and Program Control Module or Reprogram Control Module
2025 Chevrolet Tahoe Commercial, 4WDSECTION Replace and Program Control Module or Reprogram Control Module
To program a replacement or an existing control module, perform the following procedure:
- Ignition/Vehicle OFF
- Access the Service Programming System (SPS) and follow the on-screen instructions.
- On the SPS Supported Controllers screen, under Select Controller, select K4 Assist Step Control Module.
- On the SPS Supported Controllers screen, under Select Function / Sequence, select Programming and follow the on-screen instructions.
- On the SPS Supported Controllers screen, under Select Function / Sequence, select Setup and follow the on-screen instructions.
- At the end of programming, choose the "Clear DTCs" function on the SPS screen.
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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.