2022 Ford Maverick Hybrid

Yesterday I pulled into a gas station and the moment I turned the key off everything went dark. Usually the radio and instrument cluster stay on for a bit until I open the door but not this time. 5 minutes later it finally came back on, after me trying to investigate what's happening. Thought it was a fluke and drove about 45 minutes away to an appointment and got stuck for an hour or two until I could get someone to jump me. Then drove home, turned the key off same thing happened again. The only way to get the vehicle on is to jump it. 12v battery reads 13.6v on my voltmeter, but under the hood near the fusebox it's only reading 3.36v. They are supposed to be the same which means there's an electrical wire harness issue or a loose connection somewhere. Been driving this since Jan with no issues at all. I drive around 2 kids aged 4 and 16 months. Getting stranded over 45 minutes away from my house with 2 kids isn't safe, it could have been worse on a 86 degree day. I've read online forum multiple people having these same issues with this hybrid truck. Picture below with purple circle is where people are stating the issue is from.

Compete electrical failure while driving on highway. Car engine cut off and “stop safely” message came up. Jiggled loose connection on wiring harness positive termination under the hood and everything came back to life and car operated normally. Engine/electrical system failure at highway speed very unsafe- faulty wiring harness needs recall replacement issues.

Electrical power harness failed, shutting down all electrical systems. The emergency brake, engine, and instruments immediately ceased to function. The dealer diagnosed a faulty wiring harness and replaced the component, Ford Part# LX6Z-14290-PA. No warning lamps, messages, or other symptoms of the problem were observed before the shut-down.

There is a wiring harness that connects the 12v battery in the hybrid Maverick versions with the components in the engine bay -- dozens of users in one the Maverick Truck Club forum have posted about this wiring harness failing due to a poor solder connection. This has now happened to me as well. In my case, there was no warning, the truck completely went dead after I came back to work from lunch. The entire electrical system, which runs off the 12v battery when you turn off the truck, was 100% dead. The battery was fine, at 12.5v, but the rest of the system couldn't access the battery power, and you couldn't turn the truck on to access the high voltage battery power since that relies on the 12v battery to engage the contactors. I had my truck towed to the dealership and it took them more than a week to get the part replaced. I told them what I knew about the issue and they determined that this wiring harness was indeed the problem. They said there is STILL no official bulletin by Ford and no recall at this time. This part needs to be recalled and fixed so people are not left stranded when it could be easily prevented due to a faulty part. I've attached my dealer's service notes.

Upon turning off the vehicle the electrical power throughout the entire vehicle will fail, leaving vehicle stuck in park, with no ability to move. After this occurs, vehicle will no longer start. If you are able to get vehicle to turn back on (either through jumping or putting pressure on the wire terminal near the underhood battery) the vehicle will die again once turned off. Issue began occuring at 8,000 miles, it has been reproduced at the dealership, and no warning lights alert the issue. Safety at risk due to high probability of being stranded when vehicle does not revive, and a possibility of the issue occuring while driving.

Returning home from vacation. Stopped for lunch. Went back to vehicle and Vehicle was dead. After repeatedly hitting unlock button was able to unlock vehicle. Since I was aware of this potential issue I had a battery booster jump pack in the vehicle...but if you can't unlock the vehicle you are out of luck. Luckily after repeatedly hitting unlock...it eventually unlocked. When I got in I tried to start it but instead got a message saying "No Key Detected". I got my battery pack out and hooked it up...hit boost. Went to start the Mav and instantly it started. When I got ready to go, I could not move the dial from Park to Drive and still was getting the "No Key Detected" message. It took about 2 or 3 minutes for the key to be detected. Drove vehicle to dealership and and am awaiting repairs. Suspect this is a wiring harness issue that have been reported by numerous Maverick owners. Seems like a TSP/Recall is in order! Only have 1,155 miles on this new vehicle.