2022 Volvo XC90 — hybrid fuel economy dropped with no warning light — Connecticut / update

OP update: scanned the 2022 Volvo XC90 again and still only have the one pending code, no new lights. I keep a notes app thread for this now.

I wouldn't throw parts yet. Two 2022 Volvo XC90s can feel identical and have different causes, so measure before you copy someone else's repair. You'll know quickly if you're on the wrong tree. Time, temperature, and whether it's in gear are the notes that actually help a shop. Happens in gear, not in park, for what that's worth.

Log the conditions before you spend. Two 2022 Volvo XC90s can feel identical and have different causes, so measure before you copy someone else's repair. That's the branch I'd chase this week. On “hybrid fuel economy dropped with no warning,” that was the fork that mattered for me. Write the result down so the next test isn't a repeat of the last one. This is the filter I use when the thread starts repeating itself. I'll update if anything new shows up.

Start with the test that can prove you wrong. If a shop can't duplicate it on the 2022 Volvo XC90, bring a video plus freeze-frame data, not just a story. That's the branch I'd chase this week. Time, temperature, and whether it's in gear are the notes that actually help a shop. Heat soak after errands is the other window.