Error code: Check Antenna is displayed

NOTE: 

• Check the vehicle battery condition first .
• Check XM radio reception in an open area. Poor reception/interference can be caused by tall buildings, mountains, or high-voltage power lines.
• Check the connectors for poor connections or loose terminals.

• 1. Problem verification:

  - 1. Park the vehicle outside with a clear view of the southern horizon.

  - 2. Turn the ignition switch to ON (II).

  - 3. Turn on the audio system, and press the CD/XM button to 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. Turn the ignition switch to LOCK (0).

  - 2. Substitute a known-good XM antenna - Refer to: XM Antenna Removal and Installation (Except K24Z7) , XM Antenna Removal and Installation (Except K24Z7 except Natural Gas models) , XM Antenna Removal and Installation (Natural Gas models) .

  - 3. Turn the ignition switch to ON (II).

  - 4. Turn on the audio system, and press the CD/XM button to select the XM radio.

  Is Check Antenna displayed?

  YES 

  Go to step 3.

  NO 

  Replace the original XM antenna.

• 3. XM receiver check:

  - 1. Turn the ignition switch to LOCK (0).

  - 2. Substitute a known-good XM antenna lead, and recheck.

  Does the symptom/indication go away?

  YES 

  Replace the original XM antenna lead.

  NO 

  Replace the XM receiver - Refer to: XM Receiver Removal and Installation (Natural Gas models) , XM Receiver Removal and Installation (Except Natural Gas models) .