Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -2016 - crc - 11/6/15Vehicle Care 337Caution (Continued)brushes. Damage could occurand the repairs would not becovered by the vehicle warranty.Brake SystemVisually inspect brake lines andhoses for proper hook-up, binding,leaks, cracks, chafing, etc. Inspectdisc brake pads for wear and rotorsfor surface condition. Inspect brakelinings/shoes for wear or cracks.Inspect all other brake parts.Steering, Suspension, andChassis ComponentsVisually inspect steering,suspension, and chassiscomponents for damaged, loose,or missing parts or signs of wear atleast once a year.Inspect power steering for properattachment, connections, binding,leaks, cracks, chafing, etc.Visually check constant velocity jointboots and axle seals for leaks.Body Component LubricationLubricate all key lock cylinders,hood hinges, liftgate hinges, and thesteel fuel door hinges, unless thecomponents are plastic. Applyingsilicone grease on weatherstripswith a clean cloth will make themlast longer, seal better, and not stickor squeak.Underbody MaintenanceAt least twice a year, spring and fall,use plain water to flush anycorrosive materials from theunderbody. Take care to thoroughlyclean any areas where mud andother debris can collect.Do not directly power wash thetransfer case and/or front/rear axleoutput seals. High pressure watercan overcome the seals andcontaminate the fluid. Contaminatedfluid will decrease the life of thetransfer case and/or axles andshould be replaced.Sheet Metal DamageIf the vehicle is damaged andrequires sheet metal repair orreplacement, make sure the bodyrepair shop applies anti-corrosionmaterial to parts repaired orreplaced to restore corrosionprotection.Original manufacturer replacementparts will provide the corrosionprotection while maintaining thevehicle warranty.Finish DamageQuickly repair minor chips andscratches with touch-up materialsavailable from your dealer to avoidcorrosion. Larger areas of finishdamage can be corrected in yourdealer's body and paint shop.Chemical Paint SpottingAirborne pollutants can fall uponand attack painted vehicle surfacescausing blotchy, ring-shapeddiscolorations, and small, irregulardark spots etched into the paintsurface. See “Finish Care”previously in this section.
