Automatic Emergency Braking problems of the 2021 Jeep Cherokee

I purchased this 2021 Jeep Cherokee, and it has developed a life-threatening defect where it performs an uncommanded braking while driving at speed. Without any warning the car slams on the brakes creating an immediate risk of a rear end collision. Diagnostic scans show multiple critical failures: po128 (the initial warning of a computer communication issues). Dealership (echo park) refuses to fix with the proper oem part and denies my warranty, (I called it in on day 15 on my warranty, 01/28/26) I let them know the fans were loud, rpms fluctuating, tailpipe full of black soot and making a loud sputtering, this is burning up my fuel fast. My appt was on 02/10/26 they said there was nothing wrong with it. A couple weeks go by and then the check engine light turned on (after my warranty) I took it back on 03/19/26, they visually verified the code, said I had to pay out of pocket to fix it with an aftermarket part not the oem part. They set up an appt for 03/25/26. Uo128 (lost communication with brake control module) and c008e-00(ecu internal performance). These codes are directly linked to the NHTSA safety investigation pe22- 009. When I took the vehicle to allways [xxx] on March 23, 2026, the service department refused to perform a safety inspection without an upfront payment, despite the vehicle having exposed wiring in the steering column and part of an active federal safety probe. As a small business owner (maid to sparkle) grandmother who transports a [xxx] daily, I am now stranded with a vehicle that is unsafe to drive due to a documented a manufacturer defect. While at the dealership I was simultaneously on the phone with Jeep customer care. Despite the vehicle being under federal safety investigation for the exact ghost breaking I am experiencing both the dealer and corporate representative denied assistance and refused a safety inspection without an upfront fee this shows a coordinated refusal to address a documented safety defect. Information redacted pursuant to the freedom of information act (foia),.

1. Engine timing chain making rattling noise. Yes automatic emergency braking activates when there is no collision imminent. Yes 2. Faulty timing chain can cause significant damage to engine while driving faulty automatic braking system can cause accident if stopped abruptly in traffic. 3. Timing chain has been inquired by mechanic. Video of the noise. Needs to be confirmed by dealer for warranty 4. No 5. No warning.

The emergency brake engages on its own and the fuel saving on/off feature is not working and the vehicle stalls while driving.

The emergency brake activated when I step on the gas at a light. It would disengage until I turned the car off and back on. It was raining during the time. When I called the dealership(darcars Dodge and Jeep, temple hills, ms) they claimed they’d never heard of these incidents happening.

I put my car in tow mode, after hooking up my RV, followed all proper procedures, after I turned key off and closed the door, between then and when I started to roll, the emergency brake automatically engaged! I burned up my two rear Jeep tires and could have been worse had not a nice guy stop me and said your tires are on fire!!! I have a 38 ft alpine, so didn't realize the pull! I luckily only had to replace my 2 rear tires and one sensor that melted! $450. Since then I watch for this dangerous auto feature and it has engaged on its own again a few times, not always, but occasionally. I can't have this going on it I plan to tow this vehicle!.