This light should come on briefly when starting the vehicle. If it does not come on, have it fixed so it will be ready to warn if there is a problem.
If this light stays on, take the vehicle to your dealer as soon as possible.
See the information for the Electric Parking Brake under Electric Parking Brake. A message may also display in the Driver Information Center (DIC).
Tire and Wheel Runout Specifications
Tire and Wheel Runout SpecificationsApplicationSpecificationMetricEnglishTire and Wheel Assembly– Lateral and RadialOff-Vehicle1.27-mm0.050-inOn-Vehicle1.52-mm0.060-inWheel, AluminumLateral0.762-mm0.030-inRadial0.762-mm0.030-inWheel, SteelLateral1.143-mm0.045-inRadial1.015-mm0.040-inWheel Hub/Axle ...