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 MANUALSCHEVROLET2019TRAX PREMIER, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 59 (CELLULAR SYSTEM, ENTERTAINMENT SYSTEM, AND NAVIGATION SYSTEM - DIAGNOSTIC INFORMATION AND PROCEDURES)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B2462 (IO5/IO6 WITHOUT UE1)CIRCUIT/SYSTEM TESTING
2019 Chevrolet Trax Premier, AWD
Circuit/System Testing
2019 Chevrolet Trax Premier, AWDSECTION Circuit/System Testing
WARNING: This page is about a different car, the 2018 Chevrolet Trax and 2018 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF/vehicle OFF, disconnect the navigation antenna coax cable connector at the K74 Human Machine Interface Control Module. Connect the EL-49903 GM OnStar antenna diagnostic tool kit to the K74 Human Machine Interface Control Module, place the test antenna on the roof of the vehicle.
- Ignition ON/vehicle in Service Mode, infotainment system ON, navigation selected.
- Verify DTC B2462 is not set or the NO GPS symbol is not displayed on the information display.
- If DTC B2462 is set or if the NO GPS symbol is displayed
Replace the K74 Human Machine Interface Control Module.
- Go to next step: If DTC B2462 is not set or the NO GPS symbol is not displayed
- If DTC B2462 is set or if the NO GPS symbol is displayed
- Ignition OFF/vehicle OFF, disconnect the radio navigation coax cable at the.
- Verify the radio navigation coax cable passes the coax cable component test. Refer to Component Testing.
- If the coax cable does not pass the test
Replace the coax cable
- Go to next step: If the coax cable passes the test
- If the coax cable does not pass the test
- Test or replace the T2RR Antenna - Roof Rear.
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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.