Audio System - Error code: Check Antenna is displayed (2016 2017 2018 2019 2020 2021 2022)

Error code: Check Antenna is displayed 

NOTE: 

• Check the vehicle battery condition first .
• Check the connectors for poor connections or loose terminals.

1. Problem verification

   -1. Press the engine start/stop button to select the ON mode.

   -2. Turn on the audio system, and select the XM radio.

   Is Check Antenna displayed?

   YES 

   The failure is duplicated, go to step 2.

   NO 

   Intermittent failure, the system is OK at this time.

2. Determine possible failure area (XM antenna, others)

   -1. Press the engine start/stop button to select the OFF mode.

   Substitute a known-good XM antenna:

   • With navigation
   • Without navigation

   -3. Press the engine start/stop button to select the ON mode.

   -4. Turn on the audio system, and select the XM radio.

   Is Check Antenna displayed?

   YES 

   Go to step 3.

   NO 

   Replace the original XM antenna.

3. Tuner unit check (substitution)

   -1. Press the engine start/stop button to select the OFF mode.

   -2. Substitute a known-good tuner unit , and recheck.

   Does the symptom go away?

   YES 

   Replace the original tuner unit.

   NO 

   Replace the antenna rear lead.