Satin Steel Metallic 2018 GMC Yukon XL SLT 4WD 6-Speed Automatic Electronic with Overdrive EcoTec3 5.3L V8 ONE OWNER! CLEAN AUTOCHECK USB / AUX INPUTS TO PLAY MUSIC! BLUETOOTH HANDS-FREE! NAVIGATION! BACK UP CAMERA! SUNROOF / MOONROOF! LEATHER! HEATE...