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 MANUALSCHEVROLET2025TRAILBLAZER RS, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTINFOTAINMENTCELLULAR, ENTERTAINMENT, AND NAVIGATIONDIAGNOSTIC INFORMATION AND PROCEDURESRADIO INFORMATION DISPLAY MALFUNCTIONCIRCUIT/SYSTEM VERIFICATION
2025 Chevrolet Trailblazer RS, 4WD
Circuit/System Verification
2025 Chevrolet Trailblazer RS, 4WDSECTION Circuit/System Verification
- Verify no DTCs are present.
- If any DTCs are present
Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Go to next step: If no DTCs are present
- If any DTCs are present
- Ignition ON, infotainment system ON.
- Using a scan tool, under control functions select Info Display Test.
- If the Info Display can not display the test image.
Refer to Circuit/System Testing.
- Go to next step: If the Info Display can display the test image.
- If the Info Display can not display the test image.
- 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.