Keyfob not detected...

[hamster]

I had a similar occurrence today. I was at Discount Tire, having all five tires removed from the standard 2019 wheels, and having them re-mounted on Ford beadlock capable wheels. They used four floor jack's to lift the truck at each corner, and used the key from the fob to unlock the spare tire.

When they were finished and I tried to start the truck (they had me drive it in and out as part of their Covid protocols), I got the message saying key not detected. The fob wouldn't lock or unlock the doors, or remote start. I put the fob in the cavity under the front cup holder and it started.

After that it would lock and unlock doors, and remote start or stop, but wouldn't let me lock or unlock the doors by touching the door handle with the fob in my pocket. It still required me to put the fob in the cupholder (sitting in the cupholder, not in the cavity under the cupholder) in order to detect the fob and start the engine.

Does anyone think that jacking it up at all four corners would've caused this issue, or know what will get the fob fully functional again?View attachment 169306View attachment 169307View attachment 169308

Change the battery in the FOB.

 

[Turning Blue]

Change the battery in the FOB.

I will try that tomorrow or Friday. It just seemed odd that the problem started when it was time to leave there. Thanks.

 

[Turning Blue]

I replaced the battery in the key fob, and checked fuse #18 in the passenger footwell. The passive door locking/unlocking still doesn't work, and the key isn't detected to start the engine unless it is in the cavity in the cupholder.

 

[Turning Blue]

Had the same thing happen to me a couple of times. One quick fix I found was hit the emergency/alarm button. After that it started right up and was fine. No idea what was interfering but that cured it.

I tried this, but still doesn't work.

 

[hamster]

Going to ask a stupid question only because I did it....did u put battery in the FOB correctly?

 

[Turning Blue]

Going to ask a stupid question only because I did it....did u put battery in the FOB correctly?

I was lazy and went to Batteries Plus Bulbs and they put in a new battery. I even tried my other fob, which has been in a lock box since I bought the truck new, a year ago in April. They both will lock and unlock the doors, lower the tailgate and remote start, but the proximity feature doesn't work for locking, unlocking, or starting with key in pocket.

 

[Turning Blue]

Today I disconnected the truck battery for about 15 minutes. Once it was reconnected everything worked like new.