"The Napleton Auto Group promotes a no pressure buying experience that puts the customer in charge of the buying process, and for over 80 years, the Napleton family has made sure that absolutely nothing is more important than our commitment to your satisfaction. Our staff members are professional in every sense of the word, and receive regular training, including factory certification, so they are truly knowledgeable about the vehicles we offer. We want every customer's experience to be as timely, comfortable and ultimately as satisfying as it possible can be. You'll see it in every department of every Napleton Auto Group dealership. We hope you'll join the thousands of other satisfied customers that buy and service their vehicles the Napleton way. This 2026 GMC Yukon AT4 offered in Onyx Black will make a great addition to your family or business!Be sure to take note of all this vehicle has to offer:AT4 Premium Plus Package ($8,845 value)Rear Seat Media SystemPremium Capability Package with Active Response 4WDAir Ride Adaptive SuspensionElectronic Limited Slip Differential (eLSD)Max Trailering PackageIntegrated Trailer Brake ControllerHitch ViewSmart Trailer Integration IndicatorBlind Zone Steering Assist with TraileringExtra Capacity Cooling SystemAT4 Premium PackagePower-Retractable Assist StepsDual-Pane Panoramic Power SunroofTechnology PackagePower Release 2nd Row Bucket SeatsFloor ConsoleInside Rearview Auo-Dimming Rear Camera Mirror15"" Diagonal Multi-Color Head-Up DisplayAdvanced Security PackageTheft-Deterrent Alarm SystemVehicle Inclination SensorVehicle Interior Movement SensorGlass Breakage SensorEnhanced Trailering Technology PackageTrailering Assist GuidelinesTrailer Camera ProvisionsWired Auxiliary Trailer CameraPreferred Equipment Group 4SB4-Way Power Driver Lumbar Seat Adjuster4-Way Power Front Passenger Lumbar Seat AdjusterBright Front and Rear Door Sill PlatesBody-Color Door HandlesHill Descent ControlHeavy-Duty Air FilterPerforated Heated and Ventilated Driver and Front Passenger SeatsDual Exhaust SystemPower Tilt and Telescopic Steering Column2-Speed Electronic Autotrac Active Transfer Case275/60R20SL AT BW Tires20"" X 9"" Machined and Painted WheelsFront Skid PlateAutoSense Hands-Free Power LiftgateRed Horizontal-Mounted Recovery HooksBlack Roof-Mounted Luggage Rack Side RailsFront High-Approach Angle FasciaMagnetic Ride Control SuspensionFloor Liner Package ($495 value)All-Weather Cargo Mat1st and 2nd Rows All-Weather Floor Liners3rd Row All-Weather Floor LinersSafety and Security Forward collision mitigation - Forward thinking. You look away for just a second and suddenly the vehicle in front of you has stopped. That's when the forward collision mitigation system comes to life. When it senses an impending impact, it will activate a combination of features to help prevent or reduce the severity of an accident. Forward collision mitigation is always looking ahead. Pedestrian impact prevention - An extra step toward safety. Pedestrians don't always stop, look, and listen, but with Pedestrian Impact Prevention, your vehicle is equipped to better see them and avoid them. This system constantly monitors the road ahead to identify and track pedestrians. It projects that image to an interior display screen, AND should an impact become likely, Pedestrian impact prevention takes steps to avoid a collision. Hands-off cruise control - Set it and forget it. Road trips used to be stressful. Cruise control only managed speed, but not distance or safety. Now with hands-off cruise control simply set your desired speed and let sensor technology maintain a safe distance between you and surrounding vehicles with minimal steering input from you. It slows you down; speeds you up and even keeps you in your own lane. Meet your ultimate co-pilot with hands-off cruise control. Super Cruise hands-on cruise control with lane changeTechnology and Telematics Apple CarPlay/Android Auto smart device wireless mirroringOther notable features:EMISSIONS, FEDERAL REQUIREMENTS, ENGINE, 5.3L ECOTEC3 V8, TRANSMISSION, 10-SPEED AUTOMATIC, GVWR, 7600 LBS. (3447 KG), REAR AXLE, 3.23 RATIO, WHEELS, 20"" X 9"" (50.8 CM X 22.9 CM) MACHINED AND PAINTED CARBON FLASH METALLIC, ONYX BLACK, SEATS, FRONT BUCKET, FOREST STORM WITH MAHOGANY ACCENTS, PERFORATED LEATHER SEATING SURFACES, AUDIO SYSTEM, 16.8"" DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM, AT4 PREMIUM PLUS PACKAGE, AT4 PREMIUM PACKAGE, TECHNOLOGY PACKAGE, PREMIUM CAPABILITY PACKAGE WITH ACTIVE RESPONSE 4WD, LPO, FLOOR LINER PACKAGE, ENHANCED TRAILERING TECHNOLOGY PACKAGE, MAX TRAILERING PACKAGE, ADVANCED SECURITY PACKAGE, DIFFERENTIAL, ELECTRONIC LIMITED-SLIP (ELSD), TRAILER BRAKE CONTROLLER, INTEGRATED, COOLING SYSTEM, EXTRA CAPACITY, SUSPENSION, AIR RIDE ADAPTIVE, SUNROOF, POWER PANORAMIC, DUAL-PANE, TILT-SLIDING, ASSIST STEPS, POWER-RETRACTABLE WITH PERIMETER LIGHTING, LICENSE PLATE FRONT MOUNTING PACKAGE, REAR SEAT MEDIA SYSTEM, SEATS, SECOND ROW BUCKET, POWER RELEASE, CONSOLE, FLOOR, POWER-SLIDING CENTER, LPO, ALL-WEATHER FLOOR LINERS, 1ST AND 2ND ROWS, LPO, ALL-WEATHER FLOOR LINERS, 3RD ROW, HEAD-UP DISPLAY, 15"" DIAGONAL MULTI-COLOR, SMART TRAILER INTEGRATION INDICATOR, SENSOR, VEHICLE INCLINATION, SENSOR, VEHICLE INTERIOR MOVEMENT, SENSOR, GLASS BREAKAGE, SUPER CRUISE, THEFT-DETERRENT ALARM SYSTEM, CONTENT THEFT ALARM, REAR CAMERA MIRROR, INSIDE REARVIEW AUTO-DIMMING, LPO, ALL-WEATHER CARGO MAT, 3 YEARS ONSTAR ONE, TRAILER CAMERA PROVISIONS, HITCH VIEW, BLIND ZONE STEERING ASSIST WITH TRAILERING, DRIVER ATTENTION ASSIST, TRAILERING ASSIST GUIDELINES Napleton Crystal Lake Buick GMC is proud to serve customers in communities throughout Northern Chicago & Northeastern Illinois. Give us a call at 815-219-4358 or stop by to test drive your new car, truck, or SUV today! 6305 Northwest Highway Crystal Lake IL 60014Napleton Autos Online Pricing DisclaimerNew vehicle inventory is offered for sale at the Manufacturer's Suggested Retail Price (MSRP), as set by General Motors and/or General Motors Financial. Prices labeled as the ""Napleton Price"" include all eligible dealer discounts and/or manufacturer incentives and do not include taxes, title, license fees, documentation fees, optional equipment, or dealer-installed accessories selected by the customer at the time of purchase. Destination charges may vary by model and are included in the displayed pricing. All pricing is subject to change without notice based on manufacturer program updates, incentive eligibility, or market conditions.Napleton Autos advertises its inventory on this website, www.napleton.autos, as well as on third-party advertising platforms. Pricing is specific to each vehicle, identified by its Vehicle Identification Number (VIN) and dealer stock number. The pricing shown on www.napleton.autos represents the most current and accurate pricing for Napleton Autos. In the event of any discrepancy between this website and any third-party website, the pricing displayed on www.napleton.autos will be considered the most accurate and will supersede all other advertised prices.While every effort is made to ensure the accuracy of the information on this site, errors may occur. Please verify all information with a Napleton Autos Client Advisor. You may do so by contacting us directly or visiting the dealership."