The Horn Does Not Sound And/Or The Headlights Do Not Flash When The Panic Button On The Remote Is Pressed

NOTE:  Before troubleshooting, check the B-CAN DTCs. If any DTC is indicated, troubleshoot the indicated DTC first.

1. Determine possible failure area (MICU, others)

   -1. Press the PANIC button.

   Do the horns sound?

   YES 

   Go to step 3.

   NO 

   Go to step 2.

2. Horn operation check

   -1. Press the horn button.

   Do the horns sound?

   YES 

   Replace the keyless remote, then register the new remote Keyless Access System Registration .

   YES 

   Replace the keyless remote, then register the new remote Keyless Access System Registration .

   NO 

   Check the horn circuit.

3. MICU check

   -1. Turn the headlight switch ON.

   Do the headlights come on?

   YES 

   Intermittent failure, the system is OK at this time. Check for loose or poor connections.

   NO 

   Check the lighting circuit. Do the MICU input test - Go to: Exterior Lights (MICU) Input Test (2019 2020 2021) .