2018 Subaru Forester — steering wheel shakes only under highway braking — New York owner

OP update: scanned the 2018 Subaru Forester again and still only have the one pending code, no new lights. Cold start is when I can actually reproduce it.

I wouldn't throw parts yet. Get a real battery/charging test on the 2018 Subaru Forester, not just resting voltage, before blaming a module. Don't erase codes until someone who can help has seen them. That's the whole play. Wrote this up on my lunch break.

Start with the test that can prove you wrong. A pressure test beats staring at a dry driveway if the 2018 Subaru Forester is losing coolant with no puddle. You'll know quickly if you're on the wrong tree. This is from a 2018 Subaru Forester in New York with 96,000 miles. Have you gotten a second quote in writing? Wrote this up on my lunch break.

If it were in my driveway, loaded-suspension checks on the 2018 Subaru Forester catch play that a wheels-hanging inspection misses. You'll know quickly if you're on the wrong tree. If you share a photo of the worksheet, easier to sanity-check. No warning lights, which is why I'm documenting it.