This is really useful to know, thanks. Do you have a link to anything from Vauxhall official that covers this? I know some manufactures publish technical bulletins etc. which I feel like might help get more traction when I head over to the dealer.
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This is Vauxhall… You’re having laugh aren’t you?
You can tell if your car has had some of the ECU updates as follows… you will have the proximity locking option in the car settings. The GoM will count down in single digits instead of 6 mile chunks. Also, if your car was manufactured before August 2020, it hasn’t had the update if you’ve owned it all that time.
The rest aren’t that obvious but there are 9 or 10 updates and a lot of dealers techs are struggling to get them completed in one go as the procedure requires the car to be connected to computers on line for about 3-4 hours without interruption. If they get an interruption the ECU update that was updating fails and any other updates still waiting don’t happen. When the technician checks on the car, he/she probably swears a lot and has to get in touch with Vauxhall HQ or PSA Group in France or Opel in Germany to get some new authorisation codes and eventually carry on with the updates in the hope that tyey complete fully.
Apparently it’s a frustrating process and not all dealer tech’s were paying a lot of attention when they went for their EV training. This, as far as I can make out only applies to a few dealers as others have managed to learn from their mistakes and can now do most of them successfully in one sitting of around half a day.
If your dealer cannot explain to you what they are doing and the process involved, usually by you being fobbed off from speaking directly with their EV tech ( He’s far too busy right now is their favourite) then you have a fairly good chance they haven’t been very successful implementing the updates yet, possibly because they sagged off from the manufacturer course or they have a crappy internet connection.
When your car goes in for the update, possibly at the same time as a service or other required work, make sure you take it with the battery as fully charged as possible and also take both sets of keys.
Another of the updates which is much more recent (27th May I believe) changes the DC charging schedule so the car charges more quickly on a Rapid charger. Also, you will have full regen available from 100% SoC. As soon as you’ve traveled a few hundred metres with a full battery, regen is available instead of having no regen until the SoC has dropped below 95%.