Engine malfunction-'23 Prius LE - 3700 miles

Related to the recall? No. I don't think it could be related even if the tech managed to damage some random wire while doing the work. There's just nothing going to the rear doors that could cause an engine malfunction. I guess I'd be more willing to believe a screw up while doing the regular service versus anything to do with the recall.

I wish you would've had a code scanner to see what codes were thrown before the shop took over. Without that info, there's no way to know if this is a mechanical problem, an electrical problem, or something else altogether.

 

There have been instances of such malfunctions reported here, which are common in new redesigns. Check the several threads on such instances here. Hopefully by the 2026 model year, these bugs will have been fixed. And report here what the dealer finds.

 

Yeah because the wiring harness uses soy-based plastic, which rodents like to eat. Best option is to make friends with neighborhood/stray cats. They'll keep rodents, squirrels and anything else that likes to eat the wiring harnesses away.

 

been happening to prius forever, and other cars. consider yourself lucky, some cars have been totaled by rodents

 

Or you could own a Mercedes from the late-90s/early-00s(I think that was the timeframe) where the wiring harnesses were not only tasty to rodents but also biodegradable. And they misjudged the rate of degradation. It's fantastic to have the harness completely fall apart in just under 20 years. /s

 

cats, traps, peppermint, screening off entry points

 

Glad I live at 8800'. Not too many rodents and winter is coming...
Maybe wrap wiring with something that isn't attractive to rodents?

 

We have had some success with high frequency sound devices in the attic. You would need to plug it into 120v.

 

1 mouse trap in front of each front wheel, especially in fall and winter. I would find them in the air cleaner as well. I would usually catch about 1-3 a week in ea trap for the 1 st month or so, then 1 a month. If it's in a garage, check your garage door bottom weatherstrip. I found they can chew through it looking for a place that is warmer going into winter. If they did chew, stuff steel wool in the opening where they got in. Their tummys don't like that. ;-). If you store bird seen in the garage they go for that as well.