If the vehicle is equipped with OnStar and has an active subscription, additional data may be collected through the OnStar system. This includes information about the vehicle's operation; collisions involving the vehicle; the use of the vehicle and its features; and, in certain situations, the location and approximate GPS speed of the vehicle. Refer to the OnStar Terms and Conditions and Privacy Statement on the OnStar website.
See OnStar Additional Information.
Event Data Recorders
Infotainment SystemCamshaft Timing Chain, Sprocket, and Tensioner Replacement Valvetrain Valvetrain Timing
Special ToolsEN-45027 Tensioner ToolEN-45059 Angle MeterEN-48953 Camshaft Actuator Locking ToolFor equivalent regional tools, refer toSpecial Tools.Removal ProcedureRemove the camshaft cover. Refer toCamshaft Cover Replacement.Remove the number-1 cylinder spark plug. Refer toSpark Plug Replacement.R ...