1993 GMC Suburban Owner's Manual - Page 167

Care a Your Cassette Tape Player P A tapeplayerthat is notcleanedregularlycancausereducedsoundquality, ruinedcassettes,oradamagedmechanism.Cassettetapesshouldbestored in theircasesawayfromcontaminants,directsunlight,andextremeheat. If theyaren't,theymaynotoperateproperlyorcausefailure of thetapeplayer. Yourtapeplayershouldbecleanedregularlyeachmonth or after 15 hours of use. If younoticeareductioninsoundquality,tryaknowngoodcassette to see if the tape or the player is atfault. If thisothercassettehas no improvement in soundquality,cleanthetapeplayer. Cleanyourtapeplayerwithawiping-action,nonabrasivecleaningcassette, and follow the directions provided with it. Cassettes are subject to wear and the sound quality may degrade over time. Alwaysmakesurethatthecassettetapeis in goodconditionbeforeyou have your tape player serviced. . . K1313 The fixed mast antenna can withstand most carwasheswithoutbeing damaged. If themastshouldeverbecomeslightlybent,youcanstraighten outbyhand. If themastisbadlybent,as it mightbebyvandals,youshould replace it. Checkeveryoncein fender. awhile to besurethemastisstilltightenedtothe it 3-21