I’ve been blissfully ignoring this system but now Mums 2017 Subaru Forrester had a flat battery. Seems like a replacement is likely but it’s currently on charge and I’ll run a couple of checks first.
Preliminary discussions with my battery supplier has suggested that these sort of vehicles can need some reprogramming after a change. Is this to reset any adaptive battery management? Is it to specify the exact battery specs in which case if it is an exact replacement will this need doing? Is it something super annoying like an individual serial number of an imbedded chip?
Can anyone offer some insight.
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Here’s what I found in service info.
Clean the battery cable terminals and apply grease to retard the formation of corrosion. Connect the positive (+) terminal, and then connect the negative (−) terminal of the battery. After the battery is installed, initial diagnosis of the electronic throttle control is performed. Wait for 10 seconds or more after turning the ignition switch to ON, and then start the engine.That sounds an awful lot like business as usual with a very minor bit of let it sort itself out.
Yep. No battery reset needed.
It depends per make/ model. For example I know some German cars monitor how much “life” is left in the battery and send out a certain amount of power from the alternator as a response. This helps keep a battery from dying as fast. The reprogram on those is just so the system knows it’s a new battery, don’t send the same amount of power as before
I don’t think it’s an issue on your car, do some research to make sure!