Calibrating compass for the 21

[Rctj f-150]

Received ota update almost three weeks ago, 1.4.0 if I remember correctly. Compass display in the instrument cluster has been working correctly since the update. It had never worked more than maybe 10 percent of the time in the almost six months I’ve had the truck. However, the compass in the center display has been stuck on “N”. Center display compass used to work occasionally whenever the compass in instrument cluster worked.
Transmission temp gauge still not working as it should, reads cold until vehicle been has restarted then reads normal.

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[ocazrebel]

Received ota update almost three weeks ago, 1.4.0 if I remember correctly. Compass display in the instrument cluster has been working correctly since the update. It had never worked more than maybe 10 percent of the time in the almost six months I’ve had the truck. However, the compass in the center display has been stuck on “N”. Center display compass used to work occasionally whenever the compass in instrument cluster worked.
Transmission temp gauge still not working as it should, reads cold until vehicle been has restarted then reads normal.

Having the exact same issue main big screen always has compass stuck on north after I did the update. Only way to get this solved is everyone needs to contact there dealership and have those dealerships contact the Ford hotline to report the problem

 

[gaffshot747]

update:

for the past couple of weeks , just out of the blue, my compass has been working perfect everytime. (Knock on wood)

Never took it to the dealer or had WiFi updates immediately before.

transmission temp also seems to b working as well.

I’ll let u guys know if it reverts back.

 

[Doozy2]

SOLVED
Alright everyone just left the ford dealership. THERE IS NOW AN official SSM for the compass problem. It involves a update for the TCU module it takes a long time. TCU = telematics control unit
just did it today and problem solved

Thanks my friend. Mine doesn't work but I will bring this up with my dealer...

 

[ocazrebel]

Thanks my friend. Mine doesn't work but I will bring this up with my dealer...

has not been working still

 

[Missmy3/4ton]

So in August I got an OTA update, the compass on the dash seems to be working 90-95% of the time. However, it seems like the compass on Sync is now 100% frozen. Anyone else run into this?

 

[nossiron]

about a month ago, I got an update and my dash compass has worked 100% of the time since. My sync compass did not work for at least 2 weeks after that. I tried the calibration process (driving in circles in the parking lot) and it did nothing. Then a couple weeks ago my sync compass just started working. I have been using android auto a lot so my screen is hardly on that main sync screen anymore with the compass but every time over the last couple weeks that I have gone back to that screen, the sync compass is working. I don't believe I have ever seen an issue with my trans gauge so I can't speak to that issue.

 

[nossiron]

I found the problem, apparently posting to this forum is the culprit... Went on a camping trip out of state this past weekend and noticed my sync screen compass did not work at all. The dash compass was working the whole time though. Truck did great towing though.

 

[BigShan808]

My 8" display compass hasn't worked but 3 days straight in over 2 months. Have never taken notice to the trans temp gage. Ford get your act together and take care of your loyals!

 

[Missmy3/4ton]

Rumor has it there is a TSB or service notice for this? Anyone know the number?

 

[Regular Guy]

21-2388?

 

[Regular Guy]

I took mine to the dealer last week for the compass issue. Both my dash and Sync screen worked intermittently, usually frozen north. The service paperwork reads "found TSB 21-2388, updated TCU and GWM to latest levels 212388B, updates confirmed, 750352"

When I picked it up I first notice the sync compass was bouncing around about 15 degrees either side of N for about 30 secs and then froze on N and hasn't changed since. However the dash compass was reading correctly and still is.

When I called the dealer two days later to explain what happened and get the TSB info to share above, they scheduled me for another appt in Jan to see if they can get Sync compass working. I'll update then.

Since this thread is about compass calibration, I'm curious if that could be part of this issue. It isn't clear from this thread if calibration is even possible or needed but I tried anyway when I got home. Driving in circles didn't change anything. Next time I pick it up at the dealer I'm going to watch the sync compass and if I see a bouncing compass I'm going start driving in circles.

 

[Blue Truck]

I had the TSB 21-2388 procedure done on my truck on Dec 30 but had to wait until Jan 3 to pick it up. Both compasses are working now but I’m going to take the truck for a ride today to see if all is still good. I’ll keep you posted.

 

[Blue Truck]

Followup on The Compass TSB
I hope that I don’t jinx things but both compasses are still working perfectly. So, with fingers crossed, I think that this TSB did the job.

 

[Regular Guy]

I wasn't so lucky. As I wrote above, after my update in mid Dec, my Sync compass froze up after 30 secs of acting funny but at least the dash compass worked. I scheduled a followup service for last Thurs.

Between appts I did notice twice that if it was parked far a couple days when i started it up the 2 compasses were like fighting back and forth, bouncing around. Within a few moments the Sync compass froze but the dash still worked.

At this week's service they kept it overnight and tried the TSB twice but only the dash compass works. They contacted Ford and said they should hear something in a couple of days.

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