Shunt Malfunction Signs. If your child becomes very ill (persistent vomiting, extreme sleepiness, severe headache), seek medical assistance immediately. Call your childâs doctor if you think that your child is having a shunt malfunction based on the symptoms described above. Remember that you may see only one or two warning signs at a time.
Replace the tires at least every 6 years. If you're not sure, the minimum replacement time that is recommended by the NHTSA is six years regardless of use, with 10 years being the maximum service life for tires. Check your owner's manual for specific recommendations related to your car.
1 A good practice is to rotate the tires by replacing the front tires with the back ones, especially on a two-wheel drive vehicle.  Tires should never rub against your fenders or any other part of your car. If your new tires rub during turns or when going over bumps, they don't fit, no matter how cool they look.