The car starts but shuts off right away and the red light flashes the entire time.
Jun 28, 2023 at 10:23 PM
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STRAILER
✓Experienced Mechanic
55,688 POSTS
I would try your spare key to see if the same thing happens. Next disconnect your battery overnight to see if that helps, if not you can try a hard system reboot.
If this doesn't work, we need to do a CAN scan to see what codes come up. you can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.