Hi Payback, wow wow wow so your error just went away! I have exactly the same problem. Waiting for a service appointment.
Here is the full situation in case anyone knows how to reset the error message (note my TMPS sensors picks up the tire pressures OK):
"UI_a017 Tire pressure monitoring system fault - pressure sensor fault may clear next drive"
I usually can find a fix things by google search or RTFM but here I am stuck. Anyone have a simple fix?
1. Bought a used second set of Tesla OEM 19" sport wheels, ebay 433 MHz TPMS and winter tires for my 2019 Model 3 AWD (under warranty) hoping the system would pick up new sensors as I drive.
I get "UI_a017 Tire pressure monitoring system fault - pressure sensor fault may clear next drive" every time and no pressure; says "--".
Tried on screen reset, on screen reboot, two button car reset, on screen power down, on screen different wheel select and back again
to try and get the car to recognize my TPMS sensors. No luck. The ebay seller assured me they were pre-programmed for the Tesla.
2. My local tire store could read the TPMS with a hand-held TPMS reader but not link them to my car.
3. Discount Tire in Salt lake could read the TPMS but not link them to the car.
4. Google search tells me there is a non standard OBD2 port in the Tesla M3 that needs an Tesla adapter in order to program the TPMS to the Tesla Model 3.
5. I made a Tesla Service center appointment (3 week wait). Tech programmed the TPMS so now I get tire pressure numbers OK on screen which
cost $115.57 for diagnostics and "TPMS (Sensor ID Learn). In the past on other cars Discount Tire did the TPMS relearn for me for free.
6. Tech put on invoice error would disappear after car sleeps (hibernation).
He wrote:
"Verified Customer Concern. Found all sensor not learned to vehicle.
Reprogrammed TPMS Sensors and Verified Proper Operation. Alert will clear after vehicle goes to sleep.
mobileAppActivityDetails
symptomKey: UI_a017
symptomLabel: Tire pressure monitoring system fault/Pressure sensor fault may clear next drive
activityType: RECENT_ALERT
timestamp: 2021-11-23T09:08:38.307"
Still have error message. Got new UI version a few days later. Still get error message, but I do pick up Tire pressures OK now. Tried all resets, hibernation, on screen power down and reboot of car.
7. Last few weeks, have TPMS tire pressures displaying, AND UI_a017 error message every time. Called Tesla to ask them to remotely
reset the error message, as the TPMS are working fine now, but the error message will not clear. They said to make another SC appointment.
I now have new software version 2021.44.25.6
8. Made another SC appointment (4 week wait!). The TPMS readout on screen works fine now, just can't clear error message.
I am worried the tech will simply say I have non-OEM TPMS and sell me the expensive Tesla branded Conti sensors and charge for the swop. Even though the ebay ones work fine now and 433 MHz TPMS should be universal (all made in China).
I would go into the code and put "IF TPMS shows value THEN Reset Error Message" if I could get into the code!
9. How can the car pick up the correct TPMS pressures and also say there is a TPMS fault?
10. Hoping someone has had the same problem and found a way to make the error message go away before the Service Centre appointment...
