STOP SAFELY NOW message

Hi Guys. I am getting this message this morning when putting in charge. it is not showing in the charger as well. and it never goes to Ready to Drive. Any hints whats the problem.? appreciate in advance.

As a message, it ties to any fault that prevents the car from being drivable, can't narrow it down further without diagnostic codes. Around my area, places like auto zone do loaner tools where you put the cost down as a deposit that gets refunded 100% when it is returned. Is recommend doing that if you don't have an OBD adapter to use with Forscan.

jayanta144 said:

Hi Guys. I am getting this message this morning when putting in charge. it is not showing in the charger as well. and it never goes to Ready to Drive. Any hints whats the problem.? appreciate in advance.

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Hi Jayanta 144.
Just a little FYI that may or may not be useful for you. The STOP SAFELY NOW (SSN) message appeared for me while driving so I had my 2016 FFE towed to Fullerton Ford. They kept it for 2 weeks while attempting to diagnose the cause.
When they had me pick up my car they identified the issue as a loose pin on the Upper High Voltage wiring harness. They didn't even charge me the $100 deductible required by my aftermarket warranty. A week later I got the SSN message at startup. I got a LYFT ride to work and when I got home I was going to get it towed back to the dealership. As soon as I got home I tried to start the car and it started right up? I drove it to the dealership and they told me that the BECM (A MODULE INSIDE OF THE HV BATTERY) is bad and the Upper High Voltage battery would need to be replaced and since it's not covered by the warranty it would cost me $8000! I drove it home and three days later SSN message!!!! After four days of looking for an EV mechanic that didn't tell me I needed a new battery, l decided to troubleshoot the issue myself. I spent two days gutting the car and testing all connector points I found nothing!!! I decided to test the continuity of the HV interlock (BIG SQUARE DOODAD BEHIND THE BACKSEAT). I pulled back the lever lock to disconnect from the battery and it came loose after only about 20 degrees? The lever should have to get to 90 degrees before it comes loose.
I pulled the lever all the way back and plugged the interlock back in pushing the lever all the way down.
Car hasn't had any issues since!
So long story long make sure your interlock is fully engaged.