They were not torqued to the correct OEM ft/lbs when installed. It is also possible the wrong type lug nuts were installed. You must match the lug nut with the wheel as there are many different types. Just because it fits the bolt does not mean it is the correct nut. Same are flat, some are conical, and others are a combination. Also if the lug nit was cross threaded it will not stay tight.
Tire out of balance, bent wheel, loose wheel bearing, defective tire, loose wheel lug nuts, & worn steering or suspension parts.
loose nuts
Tire out of balance, bent wheel, defective tire, or loose lug nuts. Have the tires/wheels inspected, rotated, and balanced.
How can I remove a stuck aluminum wheel
Could be,Wheel bearing failure,Lug nuts not tightened properly,Lug nuts over tightened,Incorrect wheel for that vehicle,Ball joint failure,
loose wheel lug nuts
Tire out of balance, loose lug nuts, worn wheel bearing, or bent wheel.
Wheel bearing loose.
Loose nut behind the wheel. Loose nut behind the wheel.
If the steering wheel is loose while driving the steering rack may be going bad. A bad steering rack leads to a lot of play on the actual wheel.
Either your lug nuts are loose or your wheel bearings are worn out.
The lug nuts on the wheel that hold the tire on must have been loose. Even if you properly torque down all of your wheels, if you don't use a star pattern to tighten the lug nuts down, than the wheel may not be flush with the wheel hub. If this is the case, than the lug nuts can loosen, and the wheel can come off. Also, if your vehicle has loose traction arms, or tie rods (all parts of the suspension and wheel assembly), than the wheel can not only come loose, but it can fall under the car, causing a very dangerous situation. I would suggest watching a video on how to properly change a tire, before you remove or replace one yourself.