realignment, 60 to 80 bucks
If they are warped they can cause shaking when braking.
your keys?
Tire out of balance is the most likely cause. Can also be a bent wheel.
One or more of the brake rotors are warped from heat, caused by braking. Riding the brakes or always being on them, are usually the cause.
A front tire can lock up while driving due to factors such as sudden braking, worn brake pads, a malfunctioning anti-lock braking system (ABS), or low tire pressure.
Try balancing the tires,
heat shield might have came lose if it rattles alot
If it only occurs during braking, then you have a rotor or drum issue. Most times it is a warped or scarred surface on the rotor or drum. You may be able to get it resurfaced for a fraction of the cost of replacement.
Most worn out suspension components especially balljoints can cause shaking and inconsistent vehicle behaviour especially when driving on uneven surfaces. It is also risky to drive a vehicle on long distance trips if the balljoint is worn out.
possibly a loose wire connecting under one of the front seats,try shaking them next time the light come on and see if you can make it go off
Shaking can be caused by a number of things. Is the whole car shaking or is it more in the stearing wheel or during braking. Have the tires balanced. This is inexpencive and could be the problem also have them checked for seperation. It could be a severly worn wheel bearing. If the shaking occurs more during braking it could be a warped rotor. A worn tie rod can also cause some shaking. My best advise is take it to a tire shop first to rule that out and most shops can check the tie rods, wheel bearings and also brake rotors. Hope this can help get you started.
If you have low air in your tire it might cause your car to shake, also if you don't put air in your tires it may cause it to explode while your driving, It could also be caused by your alignment being off.