Car shakes after having it in awd lock mode

First thing I'd do is scan for codes with an all system scanner - Hyundai/Kia AWD codes are almost never generic codes like the "P" emissions codes. Look into a scanner like this (Note: OTOFIX is Autel so the subscription lapses every couple of years but it's cheaper then the actual Autel scanner for cost): https://www.amazon.com/OTOFIX-D1-Lite-Au... -- for something like this you want a good scanner, but if your budget doesn't allow, this one has lifetime updates for similar money: https://www.amazon.com/AI-Assisted-Bidir...

I used to suggest unidirectional scanners but with ADAS being the new $$$ feature, bidirectional support without ADAS cal/pairing has come down to near non-bi pricing since ADAS inherently requires it. Even Innova has a good tablet scanner: https://www.innova.com/collections/obd2-...

If all of the above are out of your budget, look at the Innova 5510 (non bidirectional, $249) or the 5610 (bidirectional, expensive. $379)

The other thing: CHECK YOUR TIRES! Uneven tires can and will destroy your diff, which is a very expensive lesson. Use the penny trick: Insert a penny into a tire's tread groove with Lincoln's head facing down; if you can see the top of his head, your tread is worn below the safe 2/32-inch limit, and the tires should be replaced. If the top of Lincoln's head disappears completely, your tread is still deep enough -- if you do not have a penny, look in your junk drawer or find a proper tire gauge. if the tires have uneven wear, you'll need to replace all 4 tires, or take it to a shop who can shave them down if all but one or two are bad. That said: If most of them are bad (say, 3/4) change them all and put a fresh set on without shaving them down. That only ends up being viable when one is bad but the rest are fine. If you do not have a penny given they're no longer minted, use a quarter: To perform it, insert a Washington quarter into a tread groove with George Washington's head upside down. If the top of his head is visible, the tire is worn and needs to be replaced. If the tread covers or touches his head, the tire has sufficient tread and is generally safe.

If both your tires are fine and there's no serious codes on the B (Body) and C (Chassis) set (something you need a scanner with OE codes to see), I would look at the ignition coils and spark plugs - it shouldn't have issues THIS early on being a 2023, but it's not unheard of.