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.
And if you happen to have staggered wheels that are also unidirectional or asymmetrical, you cannot rotate your tires at all! But that's rarely the case. How often should you rotate your tires? That depends. Refer to your owner's manual for exact guidelines, but most manufacturers recommend rotating tires roughly every 5,000 to 10,000 miles. Again, see your owner's manual for specifics. An important tool needed for this procedure is a torque wrench. They range in price, but you can get a simple one for under $35.