Forward collision not working and dealer blaming lift

[jmlea0]

Hello guys. Any advice would help!
Short story: I have a 2.5 fox coil overs and rear reservoir shocks. On 35/12.5/22. Had the bumpers fixed and bedlined and when they unplugged park sense sensors and repligged in nothing worked. Sensors don’t work and forward collision days bring in for service.

Dealer said they could not reprogram because they could not get truck in right perimeters due to lift. I remembered I had hyper tech speedometer calibrator on truck. So I uninstalled that and now sensors work but forward collision still says bring in for service.

Anyone had these issues?? Any help??

 

[Shots]

I'm running the same height with 35" tires too. I've had no issues with anything failing to work after the install. I don't know about the dealership's ability to reprogram, but I know they have specific measurements they have to follow with everything. It may not be that they can't physically do the work, but if parameters A, B and C aren't met, then they won't proceed to D. It sounds like a pain, but they do this because they've engineered/tested at those given parameters, so they'll stand behind them. Something outside the tested range may be doable, but they simply won't do it because they can't guarantee that it will work. All that said, I don't think it's a lift/tire issue. because there are trims that should fall into similar dimensions.
You mention having the bumper "fixed and bedlined." To me, this would suggest the issue arose from that since the lift/tires shouldn't be too far outside the normal range that they haven't tested. If that's the case, I doubt there's anything the dealership can do for you.

 

[jmlea0]

Ok. Well it’s going back to dealer today. I talked to service advisor and told him how I removed speedometer calibrator and the sensors now are turned on leaving forward collision needing service. He agreed it isn’t tires and lift at this point. He is going to try to reprogram now.

 

[Shots]

Yeah, definitely not the tires and lift. I had no issues with mine, and there are plenty of others on here who have done the same without issue. Glad to hear they're revisiting it.