Was a Hybrid, though that shouldn't affect this. It wouldn't save most of the settings I changed. Apparently you can either save it "to the key" (I googled how to do it, didn't work) or to your "profile" with a mobile app. I would never want to have to use my mobile to save car settings, even if I owned it, let alone a rental.
It has a feature that scans road signs and displays them on the dash. Awesome feature, which I've had in other cars before. Just in case you missed one and usually more accurate than Google maps for dynamic situations like construction zones. Unfortunately it loudly beeps and blinks at you if you happen to go over the limit or god forbid set the cruise control above the limit. This can be disabled individually but is part of the settings that don't save across car shutdowns.
Why is that an issue? Because setting the cruise control to 50 when in a 50km/h zone will have you driving 45 in reality as evidenced by speed measuring displays I drove by. At 100km/h you'll probably be going 90. I learned the 6 key presses on the steering wheel to disable this after starting the car real fast. Unfortunately it disables the entire feature (else it'd be a lot more key presses and I ain't doing that). If this wasn't a rental but a purchase I'd be in this guys boat and trying to return the car.
This is just one example. The other more dire one is the cruise control. I've mentioned it elsewhere before and this Corolla isn't the only one, but the automatic breaking in these cars nowadays is dangerous. The amount of time I was sitting in the car with my foot right above the accelerator in case I need to power through an automatic breaking situation was unreal.
So glad to have been back home after vacation, driving my Subaru (with an adaptive cruise control that does not have this issue).