Boasts 27 Highway MPG and 21 City MPG! This GMC Yukon XL delivers a Diesel I6 3.0L/ engine powering this Automatic transmission. REAR PEDESTRIAN ALERT, HD SURROUND VISION, TRANSMISSION, 10-SPEED AUTOMATIC electronically controlled with overdrive, includes Traction Select System including tow/haul.*This GMC Yukon XL Comes Equipped with These Options *SLT PREMIUM PACKAGE includes (WPL) SLT Luxury Package content and (C3U) Panoramic power sunroof, SLT LUXURY PACKAGE includes (UV2) HD Surround Vision, (UKK) Rear Pedestrian Alert, (A45) memory settings, (DXR) outside heated power-adjustable, power-folding, body-color mirrors with driver-side auto-dimming and integrated turn signal indicators, (N38) power tilt and telescopic steering column, (KI3) heated steering wheel, (KA6) second row outboard heated seats, (ATT) second row power 60/40 split-folding bench seats and (AS8) third row power 60/40 split-folding bench seats Vehicles built prior to December 6, 2021, include heated steering wheel. Certain vehicles built on or after December 6, 2021, will be forced to include (00G) Not Equipped with Heated Steering Wheel, which removes heated steering wheel. Vehicles built prior to March 14, 2022 and after April 17, 2022 include heated rear outboard seats. Certain vehicles built on or after March 14, 2022 through April 17, 2022 will be forced to include (00R) Not Equipped with Heated Rear Outboard Seats, which removes heated rear outboar , SUNROOF, POWER PANORAMIC, DUAL-PANE tilt-sliding with express-open and close and power sunshade, SUMMIT WHITE, STEERING WHEEL, HEATED, STEERING COLUMN, POWER TILT AND TELESCOPIC, SLT PREFERRED EQUIPMENT GROUP includes standard equipment, SEATS, THIRD ROW 60/40 SPLIT-BENCH, POWER-FOLDING, SEATS, SECOND ROW BUCKET, POWER RELEASE, SEATS, HEATED SECOND ROW, OUTBOARD POSITIONS Certain vehicles built on or after March 14, 2022 through April 17, 2022 will be forced to include (00R) Not Equipped with Heated Rear Outboard Seats, which removes heated rear outboard seats. See dealer for details or the window label for the features on a specific vehicle. Feature will not function on certain models without later dealer retrofit, see dealer for details.).