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 MANUALSBUICK2013REGAL TURBO PREMIUM, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 55 (CELLULAR SYSTEM, ENTERTAINMENT SYSTEM, AND NAVIGATION SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B2462 (ONSTAR/NAVIGATION GPS ANTENNA)CIRCUIT/SYSTEM TESTINGNAVIGATION RADIO MALFUNCTION
2013 Buick Regal Turbo Premium, Standard Trans
Navigation Radio Malfunction
2013 Buick Regal Turbo Premium, Standard TransSECTION Navigation Radio Malfunction
WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the GPS coax cable connector at the navigation radio.
- Connect the EL-49903 to the navigation radio; place the test antenna on the roof of the vehicle. See Special Tools .
- Verify the Navigation Radio functions while driving the vehicle.
- If the navigation radio does not function, replace the navigation radio.
- Ignition OFF, perform the coax cable test on the coax cable between the navigation radio and the navigation antenna signal splitter, refer to Component Testing . The coax cable should pass the test.
- If the coax cable does not pass the test, replace the T4G cellular phone, navigation, and digital radio antenna coax.
- If all circuits test normal, replace the navigation antenna signal splitter.
RENDER: 1.0x
NO RELATED
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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.