Hybrid MPG suddenly down with no warning lights

Thanks — that narrowed it. I'm going to try the simpler check on the 2022 Volvo XC90 first. I'd rather look cautious in this thread than stuck later.

I'd keep this practical. Verify the cheap/easy branch on the 2022 Volvo XC90 before a big repair or a big spend. That's where I'd start. Stop there until you know. Worth doing even if the car feels fine right now. This is me being the wet blanket on purpose.

Don't overfit one forum story to your car. If it still isn't clear on the 2022 Volvo XC90, a specialist hour can be cheaper than another round of parts. Then you'll know the next fork. This is from a 2022 Volvo XC90 in Raleigh with 96,000 miles. Stop there until you know. If the story changes I'll post the new data.

Write down what you already tried. A second data point from another 2022 Volvo XC90 owner helps more than a generic diagnosis. Then you'll know the next fork. Happy to compare notes if your setup is different. If this is nothing, great. I want that in data.

Owner notes beat generic advice here. On the 2022 Volvo XC90 in Raleigh, I'd fix the thing you'll notice every day before chasing spec-sheet extras. I'd do that before spending real money. On “hybrid mpg suddenly down with no warning,” that was the fork that mattered for me. If you share a photo of the worksheet, easier to sanity-check. Wrote this up on my lunch break.

Don't overfit one forum story to your car. If it still isn't clear on the 2022 Volvo XC90, a specialist hour can be cheaper than another round of parts. That's where I'd start. This is from a 2022 Volvo XC90 in Raleigh with 96,000 miles. Happy to compare notes if your setup is different. If the story changes I'll post the new data.

I'd keep this practical. Verify the cheap/easy branch on the 2022 Volvo XC90 before a big repair or a big spend. That's where I'd start. This is from a 2022 Volvo XC90 in Raleigh with 96,000 miles. Do that first. Doing the boring step first on purpose.

I'd keep this practical. Verify the cheap/easy branch on the 2022 Volvo XC90 before a big repair or a big spend. Then you'll know the next fork. Do that first. I've seen both outcomes, which is why I'd test instead of assume. This is me being the wet blanket on purpose.

Don't overfit one forum story to your car. If it still isn't clear on the 2022 Volvo XC90, a specialist hour can be cheaper than another round of parts. I'd do that before spending real money. Do that first. I'm in no rush to be a hero on it.

Write down what you already tried. A second data point from another 2022 Volvo XC90 owner helps more than a generic diagnosis. Then you'll know the next fork. If they can't show the line item, I assume it's hiding. Not trying to scare you — just skip the expensive first guess. This is the version I'd tell a friend.