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 PPV, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTDRIVERS ASSISTANCE SYSTEMS - ADASDRIVER ASSISTANCE SYSTEMS - DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC INFORMATION AND PROCEDURESDTC U02B3 (K124 IMAGE PROCESSING MODULE)CIRCUIT/SYSTEM VERIFICATION
2025 Chevrolet Tahoe PPV, 4WD
Circuit/System Verification
2025 Chevrolet Tahoe PPV, 4WDSECTION Circuit/System Verification
- Ignition ON/Vehicle In Service Mode.
- Verify DTC U02B3 is not set as a current DTC.
- If DTC U02B3 is set as a current DTC
Replace the K124 Image Processing Module.
- Go to next step: If DTC U02B3 is not set as current DTC or is set as a history DTC
- If DTC U02B3 is set as a current DTC
- All OK.
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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.