Car shut off while turning triangle

2003 Gen 1 Prius with 160 k wife's car
While driving it after dropping a friend off,, it stalled out while making a turn
small warning (triangle) came on and steering got hard, she realized it had shut off

She did not try to start it up, just called me

She called and I told her to take the battery terminal off then put it back on

In retrospect maybe I should have told her turn key on and off 3 times to reset (?)

Car started up fine and ran okay and has been doing running good
no check engine,no problems, no triangle
Been driving it around good so far.... this was month ago.

I'm going to have her take it to pep boys to read the code if there is one, hopefully though I did not clear it out by telling her to remove the battery terminal and put it back on.

I'm just thinking that the car stalled out and just would have started okay normally she was going slow when it happened just turning around in a parking lot.

Plan to::
Get the codes read *(if they are still stored after removing the battery cable)
Take off the throttle body do a good cleaning and new gasket just to be safe

My options are dealer or find a shop in Pomona Ontario areas

Previously I had just serviced the car and ran fine for about 5 months or more

Cleaned throttle body on the car
changed spark plugs
changed oil, air filter
changed transmission fluid and cleaned pan
new gen 2 cells in traction battery all replaced w 09 cells 5 months ago
Installed used gas tank (from previous fuel pump failure used junkyard prius had 110 k)
Goodyear here installed two new front tires and did a front end alignment

**I did read that after the front end alignment that you have to re-set the steering to zero on the computer
Not sure if they did that or if was important

I will update you when they get some codes
PS
I have a VCI scanner xp techstream Toyota manual ect ect... but not home to scan anything




2003 Gen 1 Follow up for car would not start
Thanks for the help everyone
to follow up on the previous post "engine starts then rattles and shuts down"
My problem was no fuel, the engine sounded like it was starting but actually it was the motor turning over, no fuel...
Turned out to be a fuel pump failure , installed the used tank from another junkyard car with 110k and car ran fine.

 

Thanks Bob, you know I would have never thought of the turning putting an extra load that makes sense too.

She took it to the local Toyota dealership here in Claremont, Claremont Toyota 601 auto center drive, Claremont CA

They took the car in and found that the inverter cooling pump was failing and replaced the pump, new belts and some other parts now its running. They also did some other work that was under warranty which was good too

Apparently the light was coming on then the engine shut off due to sensor reading high inverter temp(?)
After she re-set it , it took a week for the light to come back

I am very satisfied with the service department there they were honest and straightforward with us about the repairs and did some extra repairs under Toyota recall that needed to be done, just getting the car back this week

Thanks for the help