FCW system malfunction

[Doninscoe]

how to diagnose / repair false random warnings 2015 Hyundai Genesis

 

[joegr]

how to diagnose / repair false random warnings 2015 Hyundai Genesis

You've called this FCW (Front Collision Warning), "front right passenger alarm," and "Collision warning system." None of those are actually the correct term. You are talking about the low speed parking assist sonar, usually just called parking assist.

You will get false indications when there are other cars nearby that also have their parking sonar turned on. It's the nature of how the system works.

Collision warning system

My front right passenger alarm goes off randomly when there’s no visible obstacle. Has anyone else had this problem and how was it rectified?

genesisowners.com

 

[Doninscoe]

You've called this FCW (Front Collision Warning), "front right passenger alarm," and "Collision warning system." None of those are actually the correct term. You are talking about the low speed parking assist sonar, usually just called parking assist.

You will get false indications when there are other cars nearby that also have their parking sonar turned on. It's the nature of how the system works.

Collision warning system

My front right passenger alarm goes off randomly when there’s no visible obstacle. Has anyone else had this problem and how was it rectified?

genesisowners.com

Thank you for your post. The Parking Assist also beeps when I’m driving and when there’s no cars nearby

 

[joegr]

Thank you for your post. The Parking Assist also beeps when I’m driving and when there’s no cars nearby

It should only be active when you are going less then 12 MPH or so. Is it always that one particular corner sensor. If so, that sensor may need to be replaced.

 

[Doninscoe]

It should only be active when you are going less then 12 MPH or so. Is it always that one particular corner sensor. If so, that sensor may need to be replaced.

Yes it’s always the same corner sensor

 

[Doninscoe]

Yes it’s always the same corner sensor

Do I have to take it to a dealer or local repair shop, or is it an easy DIY?

 

[joegr]

Do I have to take it to a dealer or local repair shop, or is it an easy DIY?

That all depends on your comfort level. There's no software or calibration or special tools involved. Removing and re-installing the front bumper is the only work at all to it. The sensor snaps in/out. I haven't looked at the front to see if there is any way to reach in there and do it without removing the bumper. I have removed the rear bumper cover before. It was not at all hard, but I never would have correctly guessed where all the attachment parts where and how to disengage them without having the factory service manual.