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).
Camshaft Timing Drive Components Cleaning and Inspection Valvetrain Valvetrain Timing
Cleaning ProcedureClean all the following components with solvent:Crankshaft sprocketPrimary timing drive chainPrimary timing drive chain shoePrimary timing drive chain guidesPrimary timing drive chain tensionerSecondary timing drive chainsSecondary timing drive chain shoesSecondary timing drive cha ...