If you have performed a Sync 2 > Sync 3 upgrade and have a high end Ford model with parking assist, you may now have found your parking assist is not working particularly well.
Firstly, if you are attempting this on a Ford Fusion/Mondeo, I’d recommend following the excellent guide here on the 2gfusions.net forum.
If you are attempting this on a Focus mk3.5 Titanium X the below contains asbuilt for your vehicle.
The good news is it is possible to get it working, but does require an update to your PAM (Parking Assist Module) firmware AND Asbuilt configuration updates. The additional benefit is that you can add additional capability in the form of perpendicular parking (reversing into Supermarket car park spaces) in additional to parallel parking.
If you have parking assist, you will have a button similar to this on your dash:
In Sync 3, this is the view you will see once configured. If you just enable the parking mode in the Sync AsBuilt without updating your PAM firmware/AsBuilt, you will see errors when trying to use the parking modes.
Sync 3 Parking Assist - note the different mode buttons on the screen:
First Step: take a backup of the AsBuilt for both your APIM and PAM modules using Forscan.
APIM (Sync 3) AsBuilt Updates
Enable Object Detection (the car icon that appears when putting the vehicle in reverse) - NOTE, only change this if you do not presently see the image when putting vehicle in reverse!:
A = Parking Sensor Display Enabled & Camera Enabled Illumination FNA (USA Default - Camera & Sensor)
B = Parking Sensor Display Enabled & Camera Enabled Illumination FoE (UK Default - Camera & Sensor)
Enable Flank Guard:
3= Enable Flank Guard Display (Also enables temperature read out in top bar of Sync 3)
Enable Parking Assist Module Type
7 = 12 Sensors (Active Park Assist + Parallel + Perpendicular + Park Out Assist) (UK Titanium X 12 sensors)
8 = 10 (or less) Sensors (Parallel Park Only) (APA Lite)
9 = 10 Sensors (Parallel and Park Out Only) (APA Lite Plus)
Firmware update your PAM (Parking Assist Module)
Your PAM will likely require a firmware update, though depending on the age of your vehicle this may not be totally required. Please follow the guide in the main forum
for ‘updating your APIM Firmware’, but instead of updating the APIM, select your Parking Assist Module.
You may want to try the below changes to your AsBuilt in your PAM first.
Configuration update to your PAM AsBuilt:
The configuration of the PAM module is not very well documented online, so we can only take examples of newer vehicles with both Sync 3 and full 12 sensor parking assist enabled and use these. Below are some examples for your reference:
Ford Focus Titanium X mk3.5 2018 (Full parking assist enabled with Sync 3):
Recommend using this one for Sync 3 on a Focus only:
Ford Focus Titanium X mk3.5 2015 (Full parking assist enabled with Sync 2):
Final Step: Wait…
Once configured, you will likely find the vehicle will not recognise the flank guard & new parking options immediately. Despite carrying out master resets of the APIM and waiting for 5 minutes with the vehicle switched off, I found the updates would not take effect.
However, about a week later and with no other changes made, the config took effect and now works perfectly.