Black plate (4,1)Cadillac Escalade EXT Owner Manual - 201111-4 Service and Maintenance. Lubricate the front suspension,steering linkage, and parkingbrake cable guides. Control armball joints are maintenance‐free.. Steering and suspensioninspection. Visual inspection fordamaged, loose, or missingparts or signs of wear.. Body hinges and latches, keylock cylinders, rear compartmenthinges, outer tailgate handlepivot points, and folding seathardware lubrication. SeeRecommended Fluids andLubricants on page 11‑7. Morefrequent lubrication may berequired when the vehicleis exposed to a corrosiveenvironment. Applying siliconegrease on weatherstrips with aclean cloth makes them lastlonger, seal better, and not stickor squeak.. Restraint system componentcheck. See Safety SystemCheck on page 3‑24.. Fuel system inspection fordamage or leaks.. Exhaust system and nearby heatshields inspection for loose ordamaged components.Additional Required ServicesEvery 12 000 km/7,500 Miles. Rotate tires. Tires shouldbe rotated every 12 000 km/7,500 miles. See Tire Rotationon page 10‑61.At Each Fuel Stop. Engine oil level check. SeeEngine Oil on page 10‑8.. Engine coolant level check. SeeEngine Coolant on page 10‑18.. Windshield washer fluid levelcheck. See Washer Fluid onpage 10‑26.Once a Month. Tire inflation pressurescheck. See Tire Pressure onpage 10‑54.. Tire wear inspection. See TireInspection on page 10‑61.. Sunroof track and sealinspection, if equipped. SeeSunroof on page 2‑25.