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.
Error code: Check Antenna is displayed
NOTE:
- Check the vehicle battery condition first .
- Check the connectors for poor connections or loose terminals.
- Problem verification
-1. Turn the vehicle to the ON mode.
-2. Turn on the audio system, and select the XM radio.
Is Check Antenna displayed?
YES: Without navigation
The failure is duplicated, go to step 2.
YES: With navigation
The failure is duplicated, go to step 3.
NO
Intermittent failure, the system is OK at this time.
- Determine possible failure area (XM antenna, others)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Substitute a known-good XM antenna .
-3. Turn the vehicle to the ON mode.
-4. Turn on the audio system, and select the XM radio.
Is Check Antenna displayed?
YES
Go to step 4.
NO
Replace the original XM antenna.
- Determine possible failure area (TEL/GPS/XM antenna, others)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Substitute a known-good TEL/GPS/XM antenna .
-3. Turn the vehicle to the ON mode.
-4. Turn on the audio system, and select the XM radio.
Is Check Antenna displayed?
YES
Go to step 4.
NO
Replace the original TEL/GPS/XM antenna.
- XM antenna lead check (substitution)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Substitute a known-good XM antenna lead, and recheck.
Does the symptom go away?
YES
Replace the original XM antenna lead.
NO
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.