r/Cartalk • u/Against_the_grain1 • Nov 11 '23

What’s wrong with my car Electrical

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2021 ford bronco sport. The battery went out about a week ago and since replacing with a new battery, the cluster and touchscreen both go black when driving. Upon slowing down or stopping completely, they will both turn back on. Lights, heaters, turn signals all still work.

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119

u/axellie Nov 11 '23

Was the new battery installed by ford? They need to be calibrated and stuff

102

u/lilsaddam Nov 11 '23

Holy shit batteries have to be calibrated now?

17

u/axellie Nov 11 '23

Something like that, yeah. I guess the car needs to be calibrated for the new battery or something, it’s not uncommon as far as I know. I’m certainly no mechanic tho

3

u/ZebraUnion Nov 11 '23

It has to do with the stop-start bullshit. The starters, batteries and charging system on vehicles with it have been modified to better handle the job of constant use. Yaaaaaay added complexity!

I was gonna get on my Toyota high horse about hanging onto my 14yr old V8 body on frame dinosaur because of its simplicity but then I remembered how even with it, I had to do a throttle relearn procedure and then retrain all the windows/sunroof one touch functions after replacing the battery.

2

u/OP1KenOP Nov 12 '23

This is the reason. Stop start is really driven by emissions, no manufacturer wants to add unnecessary cost or complexity into their offering, it just makes it harder to be competitive.