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Discussion Starter · #1 ·
My 2013 F350 CC Lariat with 16,500 miles has developed a TPMS problem. Tire pressures are at factory specs, checked regularly and rotated at 5000 miles. I have not had any issues until now. The alarm went off a few weeks back as I was driving. I checked the TPs and they were good. The truck sat over night and in the morning I went to work no TPMS alarm. Went like that for a few days then an alarm. TPs still good. It has been going off intermittently now and it seems like when it is cool it won't go off. I tried the learning procedure by the owners manual and I can't get past the first tire. I bought a Ford TPMS training device and that won't work either. I went to work Yesterday morning no alarm I was driving along and turned on my radio and the horn beeped and a message came up LEARNING PROCEDURE FAILED TRY AGAIN, now my radio won't work. GPS, Climate, and Phone all work on the touch screen, no radio. Anybody have this happen?
 

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The TPMS tool is of no use for the SD's. Maybe you can sell it to someone. The TPMS is probably not related to the radio issue. There have been cases of the TPMS acting strangely due to cellphone chargers or some other device that might have a harmonic of the TPMS frequency. Try removing any chargers that use 12v and go get a cheap 120vac charger from wal mart for like $8.00.

The radio issue is strange for sure. Are you saying the radio does not turn on or it is on but no sound? By change have you tried disconnecting the battery cable for a few minutes?
 

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Discussion Starter · #3 ·
The radio won't turn on either by touch screen or the knob and it happen when the failed message displayed. I talked with my dealer today made an appointment for Tuesday, they are already scratching their heads. I thought about disconnecting the battery but that might clear a fault code and not fix the problem.
 

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Discussion Starter · #4 ·
My cell phone has been in three Super Duties and this one since I took delivery. I never take it out or unplug it.
 

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I've had my radio mess up and not be able to turn it on via knob or touchscreen.
What I did was pull fuse 29 in the passenger side fuse panel and put it back in.
It's a 20A fuse and controls SYNC, GPS module, Radio faceplate.

Try it out and see if it works. Beats disconnecting the batteries.
 

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Just saying what has been reported that the cellphone chargers have been known to interfere with the TPMS and give false warnings. Do a search on the net about it. Or on this and other 6.7 websites.
 

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Only occasional 12-volt chargers cause a problem. Scosche ones seem particularly bad; Ankers so far haven't shown any problems. In addition, if you have added any kind of power supply for extra lighting, for engine management, etc., they can cause the same problems. I was responsible for at least one old thread on this subject. Nothing fixes it if you have the problem. If you get a new charger, it virtually always will solve the problem (and if it doesn't, just go find another charger until the problem goes away).

The problem also comes up occasionally with relays. I ran into it in two trucks where the relay actuating the windshield wipers would throw a TPMS Fault code every time the wipers were turned on. Replaced the relay and the problem went away. The TPMS have standardized wavelengths, code protocols, and so on, so they work with most vehicles. You can't make a change at the TPMS that will do anything.
 

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My 2011 had a warning of TPMS failure, not low tire pressure. That occurred while truck wheels riding on the side road rumble strips, with severe vibration.

But at same time wife was charging her Apple Ipad.

Occurred a few more times while on RV trip, but cleared, and tire pressure good all around. I decided to have checked, had the Ford clicker check. All checked OK.

Then later while checking online, found the issue may be the Apple charging of an Apple product, be it cell phone or Ipad thingie.

Hasn't happened again, since told wife to not charge her Ipad. We charge our cell phones, Samsung, OK and no TPMS faults.

As for radio bit, don't have that fancy display, so can't comment on this puppy. My guess, maybe some kind of RF interference. Or a EMP device went off in middle section of country....
 

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Discussion Starter · #9 ·
I pulled out number 29 fuse and put it back in, the radio works now.
 

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Discussion Starter · #10 ·
My dealer could not find any faults or codes. The TPMS light has not been on since I picked up my truck. Knock on wood.
 
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