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You should ask them to roll back the key operational software update - it isn’t a large file and should be quick to do. The larger ones are things like updated sat Nav maps and I don’t imagine this has any impact.You can add me to the list too. Took my September 2022 car in today for the relevant recalls and software update. The car was running fine previously but needed new Seat Belts, A-pillar Trim Retainers, Windscreen Wiper Motor and Power Steering Lines due to the relevant recalls. No problem. It's an early build of a brand new model car and I expected some teething issues.
Had them do the software update in the hope it would fix the issues I was having with intermittent Carplay Failure, unaware of these issues beforehand.
Now the car won't start half the time.
Did some experimenting tonight and it does seem that the order/timing in which the various ECM modules fire up plays a role. I found if I wait 10 seconds between unlocking the car and opening the door, it happens less frequently.
It's as if the main ECU only tries to handshake with each module once before throwing an error. Adjusting the timing, and/or retrying multiple times until handshake is achieved before timing out and moving on to the next module should hopefully fix it.
Interestingly, I have a Volvo XC90 and it actually lists each car's system on the dash and shows them as operational as it handshakes. I assume this car is doing similar behind the scenes.