The stop lights have stopped working on my 2007 Tucson. I'm posting here because I don't this this is really vehicle specific.

I've had the switch out and it tests OK. I adjusted it to make absolutely sure that the pedal is leaving a gap when pressed. The fuse is OK and Cruise kicks out as soon as I touch the pedal.

The ESC OFF light has been on for months and as it's a feature that I don't care about, I haven't bothered tracing that down. The ESC OFF light goes off when the car is started but comes on immediately I touch the brake. SO.. further evidence that the switch is outputting power.

Since there are 3 stop lights, the white wire from the switch must split into 3 at some point so somewhere. Between that junction and the switch I suspect that there is a break!

Anybody know where I should be looking? Any help would be greatly appreciated. I am a bit too big and aged to stand on my head, working under the dash for long and removing the driving seat??? Air bags!! That's a lot of work!

Thanks,

 

I have the exact same issue with my 2016 Hyundai Elantra. Had auto tech place do inspection and it was the brake light relay module. I ordered it online. Now my problem is I don't know where it goes. Google hasn't been any help either.

 

Providing you bought the correct part,,,,,,,,,,,,,,,,,,,, . did you or whoever checked the vehicle confirm the fuses were all good?
Look under the relay panel cover in the engine compartment , it should show the relay location that controls the stoplight system.

Don't know if your mechanic proved the relay was defective or was there another problem. Let's hope he/she did.

 

They did full inspection. They sent me the full report. Part number is 952403x000