2021 Jeep Wrangler Unlimited That Has A Traction Control and Service Start/Stop Error

Question:

Hi. We took our 2021 Jeep Wrangler Unlimited High Altitude, 8 speed 3.6 liter, to CampingWorld in Grand Rapids, MI to install the Demco Stay in Play Duo system for use to flat tow it behind our Class A Motorhome. The Jeep has all the bells and whistles park assist/Adaptive cruise, etc. They ordered parts we didnt already have to match blue ox BX7330 Aventa tow arms. They put everything on and gave us the Jeep back with 2 alarms: service electronic stability control traction control icon is lit all the time and service stop start system. Also right rear taillight not working right. So, we werent happy. Then they said they should have installed smart diodes. So they installed those, but alarms still present and now we have a vacuum leak under the hood! They are looking the jeep over, again, but we need help. Any thoughts?

asked by: Bonnie S

Expert Reply:

Hey Bonnie, that's strange. I'm looking over the electrical requirements for your vehicle and I am seeing that you need the Smart Diodes, but I'm not seeing anything else. It makes me wonder if they maybe messed up the wiring harness during install and now its throwing a bunch of errors.

expert reply by: Bryce D

Bonnie S.

5/23/2024

Thank you, Bryce! Finally they started from scratch and found a sensor that had been knocked loose. They plugged it back in and voilà - no more alarms, not even a vacuum leak code anymore! So thankful that was all it was. I wanted to post this to potentially help someone else.