Service bulletins may involve any number of vehicles. Some will describe inexpensive service, others will describe expensive service. Some will advise new or unexpected service, and others may help avoid future costly repairs. In some cases bulletins refer to service manuals, special tools, equipment, and safety procedures necessary to service the vehicle. Since these bulletins are issued throughout the model year and beyond, an index is required and published quarterly to help identify specific bulletins.
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Owner publications Owner's manuals, warranty folders and various owner assistance booklets provide owners with general operation and maintenance information.