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.
FM/AM Broadcasting
- Features/Misdiagnose cases
Inspection Description (1) System features - Last played channel will continue to play after IGN ON (Last memory)
- BSM (Best Station Memory) mode picks strongest radio reception
(2) Vehicle Parts configuration (Radio antenna type and configuration) (3) Misdiagnose cases - Check battery drain and B/U voltage shutdown → Last played channel may change
- Poor reception area → Noise due to poor reception area (Not H/U defect)
- Vehicle modification noise → Remove any modification before testing
System features
* Vehicle parts
- When ACC On, last radio channel at ACC Off should be played (Last memory)
- When radio channel is automatically searched (Seek/Stop), radio broadcasting should be well received
- Sirius XM Reception
Inspection Description (1) Duplicate issue - Audio output on other mode (CD, Media)
- If same issue occurs in different mode, check sound (Refer to Sound Troubleshooting ).
- Radio continues to play last played channel (frequency) before turning IGN off
- If last played channel is changed, check battery drain B/U voltage shutdown
→ Last played channel may change
- Radio channel (Frequency) issue when using Seek/Stop button?
- Part defect if Seek/Stop button fails to receive signal in a good reception environment (Antenna, H/U, feeder cable, etc.)
(2) External/Environmental Issue - Poor reception area
- Black box
- Cable connection
- Move to better reception environment (Poor reception area)
- If this issue continues, proceed with step 2 below
Information
- Bad reception by circumstances
- Black box (vehicle modification noise)
- Remove power on black box (Especially rear) and retest
- Engineering mode > Care > Vehicle I/F Test/Radio (Confirm reception using different vehicles)
- Check reception on good reception environment: Normal if above 30db
(2) External/Environmental Issue - Poor reception area
- Black box
- Cable connection
- Check antenna cable and connection if the value for step 3 is below 30db
- Check antenna location and type
Information- Examples of defect of antenna and cable
(3) Defect caused by Ext. parts - If antenna connection is good, replace antenna and feeder cable and retest (Use certified antenna)
(4) Check H/U defect - If this issue continues, replace H/U and retest
- Audio output on other mode (CD, Media)
Use the Manual With the Right Hardware
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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.
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