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Black EcoTec3 5.3L V8 LS 15/20 City/Highway MPG
At Simpson Automotive, we're big enough to deal, small enough to care!
All roads lead to Simpson!
New 2026 ChevroletTahoe LS
- Exterior Color
- Black
- Interior Color
- Jet Black, Premium cloth seat trim
- Fuel Economy
- 15/20 MPG City/Hwy
- Transmission
- Automatic
- Drivetrain
- RWD
- Engine
- 5.3L V8 engine
- VIN
- 1GNS5MKDXTR278557
- Stock Number
- 278557
Included Packages & Accessories
Detailed Specifications
- Basic: 3 Years/36,000 Miles
- Corrosion: 3 Years/36,000 Miles, Rust-Through, 6 Years/100,000 Miles
- Drivetrain: 5 Years/60,000 Miles, 3.0L & 6.0L Duramax® Turbo-Diesel engines, and certain commercial, government, and qualified fleet vehicles: 5 years/100,000 miles
- Maintenance: First Visit: 12 Months/12,000 Miles
- Roadside Assistance: 5 Years/60,000 Miles, 3.0L & 6.0L Duramax® Turbo-Diesel engines, and certain commercial, government, and qualified fleet vehicles: 5 years/100,000 miles
- Warranty: <<< Preliminary 2026 Warranty >>>
- Max seating capacity: 9
- Fuel System: Direct Injection
- Fuel tank capacity: 24 gal
- Horsepower: 355
- Towing capacity: 7900 lbs
- 17.7" diagonal advanced color LCD display with Google built-in compatibility:
- Includes navigation capability1
- Connected apps, and personalized profiles for each driver's setting
- Natural voice recognition and phone integration
- Apple CarPlay™ capability for compatible phones2
- Android Auto™ capability for compatible phones3
- 5G Wi-Fi® hotspot capable:
- Service varies with conditions and location. Requires active service plan and paid AT&T® data plan. See onstar.com for details and limitations.
- 6-speaker audio system:
- Speakers are positioned throughout the cabin for an enjoyable listening experience
- Bluetooth®:
- Pair your compatible mobile phone to your vehicle's infotainment system1
- SiriusXM with 360L Trial Subscription:
- With your trial subscription, new GM vehicles equipped with SiriusXM with 360L advance in-car technology will bring you closer to your favorite stars, artists, creators, hosts and athletes1
- SiriusXM with 360L transforms your ride with our most extensive and personalized radio experience on the road that lets you enjoy ad-free music, talk and news, live sports, comedy, podcasts and more
- Experience SiriusXM wherever you go in your vehicle and on the SiriusXM app with personalization features to make discovering your perfect entertainment easier than ever before
- Wi-Fi® Hotspot capable:
- Terms and limitations apply. See onstar.com or dealer for details.
- Wireless Apple CarPlay/Wireless Android Auto capability for compatible phones:
- Apple CarPlay vehicle user interface is a product of Apple and its terms and privacy statements apply. Requires compatible iPhone and data plan rates apply. Apple CarPlay is a trademark of Apple Inc. Siri, iPhone and Apple Music are trademarks for Apple Inc, registered in the U.S. and other countries.
- Vehicle user interface is a product of Google and its terms and privacy statements apply. To use Android Auto on your car display, you'll need an Android phone running Android 6 or higher, an active data plan, and the Android Auto app. Google, Android and Android Auto are trademarks of Google LLC.
- 17" all-season blackwall spare tire:
- P265/70R17
- 17" full-size spare steel wheel
- 18" Bright Silver painted aluminum wheels:
- Paired with all-season blackwall tires
- 18" all-season blackwall tires:
- 265/65R18SL
- Acoustic laminated glass:
- Helps keep out traffic and road noises
- Dampens sounds from the outside to help give you a quiet ride
- Black assist steps:
- Textured step pads help provide secure footing
- Extend from wheel well to wheel well
- Includes Chrome accent strip on LS, LT, Premier and High Country
- Includes Gloss Black accent strip on RST
- Body-color door handles
- Body-color heated power outside mirrors:
- Both mirrors are heated and are activated when the rear defogger is engaged, helping to clear them of ice, snow and frost to help improve visibility
- Power adjustments allow you to move both side mirrors independently with the touch of a button
- Manual-folding feature lets you fold the mirrors in
- Body-color mirror caps
- Bright roof-mounted side rails:
- Enhances the appearance of your vehicle
- Bright wheel locks:
- Helps safeguard wheels on the vehicle
- Includes 4 locks and 1 key
- Deep-tinted glass:
- Tint on rear side windows and rear liftgate window
- Front fascia
- Front license plate bracket:
- Front bracket is included if displaying a front license plate is required in your state
- IntelliBeam:
- At speeds above 25 mph, can automatically turn vehicle's high beams on and off according to surrounding traffic conditions1
- LED headlamps:
- Provide a bright, intense beam of light to illuminate the road ahead
- Help improve down-the-road visibility in low-light conditions
- LED tail lamps:
- Help improve visibility in low-light conditions
- Manual liftgate:
- Access your cargo area with ease
- Rear window glass opens on the liftgate
- Rainsense automatic wipers:
- Turn on automatically when sensors detect varying degrees of precipitation on the windshield
- The intermittent feature adjusts the speed of the wipers to help keep the windshield clear in a variety of conditions
- Rear intermittent wiper:
- Variable-speed
- Keeps your rear window clear to help enhance visibility
- Spare tire carrier:
- Lockable winch-type, located under frame in rear
- Upper active aero shutters:
- Shutters automatically close at high speeds to help enhance aerodynamics
- Shutters reopen at lower speeds or when needed to help cool the engine compartment
- Located in the front fascia
- 11" diagonal color Driver Information Center:
- Includes driver personalization, warning messages and vehicle information
- 120-volt power outlets:
- Two outlets, located in the rear of the center console and cargo area
- 2-way power driver and front passenger lumbar control:
- Lumbar area expands and retracts to provide lower back support
- 6-way power front passenger seat adjuster:
- Forward and back
- Up and down
- Recline seatback forward and back
- 8-way power driver seat adjuster:
- Forward and back
- Up and down
- Tilt seat cushion back and upright
- Recline seatback up and down
- Adaptive Cruise Control:
- Automatically follows a detected vehicle ahead at a driver-selected following gap1
- If no vehicle is detected in your path, works like regular cruise control
- You can always override the feature and take control
- Assist handles:
- Front passenger A-pillar and second row outboard B-pillar
- Cargo Management System:
- Includes movable dividers that adjust the size of the storage areas
- Allows you to secure cargo to help prevent items from shifting while you're driving
- Carpeted floor covering:
- Color-keyed to match the interior
- Carpeted floor mats:
- Removable color-keyed floor mats for first and second rows
- Center console USB ports:
- 2 type-A and C, charge and data1
- Located inside center console
- May require additional optional equipment
- Chevrolet Connected Access capable:
- Subject to terms. See onstar.com or dealer for details.
- Driver and front passenger visors with illuminated mirrors:
- Include covered mirrors
- Electrical theft-deterrent system:
- Helps deter unauthorized entry, helping to protect your vehicle and its contents
- Immobilizes the engine to help prevent theft
- Sounds the horn and flashes the turn signals when someone attempts to open the vehicle without the proper key or remote transmitter
- Electronic Precision Shift:
- Steering column-mounted electronic gear shift selector
- Front bucket seats
- Front center console:
- Storage area, cup holders and auxiliary power outlet, located in the rear of the center console
- Removable organizer tray
- Keep valuables and smaller items secure
- 2 USB ports1
- May require additional optional equipment
- Front console USB ports:
- 2 type-A and C, charge and data1
- Located on front console
- Inside rearview manual day/night mirror:
- Adjust the tilt of the mirror to help reduce glare during nighttime driving
- Interior lighting:
- Driver- and passenger-side lighting with delayed entry feature activates when you open any door with controls located in the overhead console
- Dome light
- Map lights in front and second row seat positions
- Cargo light, door handle or Remote Keyless Entry-activated illuminated entry
- Key Card
- Keyless Open:
- With the key fob in your possession, locks and unlocks your vehicle's doors by pressing the button on the door handle without having to use the key fob, increasing convenience
- Lockout protection helps you avoid locking keys in the vehicle
- Manual second row bench seat:
- Includes a manual release that lets you conveniently fold one or both of the second row seatbacks
- Manual third row bench seat:
- Lets you conveniently fold one or both of the third row seatbacks
- Adds cargo- and passenger-carrying versatility to your vehicle
- Folds flat
- Manual tilt and telescoping steering column:
- Allows the driver to adjust the steering wheel up or down, and the steering column forward or back
- Overhead assist handles:
- Driver and front passenger, located in headliner
- Power programmable door locks:
- Allows you to lock and unlock doors easily whether it's from the driver or front passenger seat or from outside using the key fob
- Lockout protection helps you avoid locking your key fob in the vehicle
- Power windows with driver express-up/down:
- Quickly raises or lowers the window with the touch of a button
- If an obstruction is detected, the anti-pinch feature will auto-reverse
- Power windows with front passenger express-up/down:
- Quickly raises or lowers the window with the touch of a button
- If an obstruction is detected, the anti-pinch feature will auto-reverse
- Power windows with rear express-down:
- Quickly lowers the window with the touch of a button
- Rear air conditioning
- Rear window defogger:
- Helps to keep your rear view clear of fog or frost
- Utilizes a warming grid to help remove fog or frost from the rear window
- Remote Start:
- Start your vehicle remotely and step into a comfortably warmed or cooled vehicle, depending on the weather and your preset preferences
- Locks doors and turns on parking lamps while the engine is running
- If equipped, the heated seats may also be activated, depending on certain weather conditions
- Steering column lock:
- Helps prevent theft by allowing the steering wheel to operate only with the proper key fob
- Steering-wheel mounted controls:
- Allow the driver to easily operate the Driver Information Center, Adaptive Cruise Control, Forward Collision Alert1 following gap distance setting and heated steering wheel (if equipped)
- Third row USB ports:
- 2 type-C, charge-only1
- Located in the outboard seating areas, above the cup holders
- Tri-zone automatic climate control:
- Automatically maintains the selected temperatures for the driver, front passenger and rear seat passengers
- Wrapped steering wheel
- 10-speed automatic transmission:
- Electronically controlled with overdrive
- Includes Traction Select System including tow/haul
- 220-amp alternator
- 3.23 rear axle ratio
- 4-wheel antilock disc brakes:
- Help reduce wheel lockup and maintain steering control during hard braking on most slippery surfaces
- Duralife brake rotors have better resistance to corrosion to increase rotor life, minimize brake pulsation, and improve aesthetic appearance
- 5.3L V8 engine:
- 355 hp @ 5600 rpm
- 383 lb-ft of torque @ 4100 rpm
- Dynamic Fuel Management technology
- Aluminum block, Direct Injection with Variable Valve Timing
- Paired with a 10-speed automatic transmission
- 7,400 lbs. GVWR:
- When properly equipped; Gross Vehicle Weight Rating (GVWR) includes weight of vehicle, passengers, cargo and equipment
- Automatic Stop/Start:
- At complete stops, when drivers keep their foot on the brake pedal, and under certain conditions, the engine shuts off
- When drivers remove their foot from the brake, the engine automatically restarts
- Includes disable button with each engine cycle
- Automatic Stop/Start disable button
- Engine air filtration monitor
- External auxiliary transmission oil cooler:
- Heavy-duty air-to-oil cooler
- Helps prevent transmission overheating
- Helps provides optimal transmission performance even when operating under a heavy load or towing a trailer
- External engine oil cooler:
- Heavy-duty air-to-oil cooler
- Helps the engine generate consistent peak performance
- Helps prevent possible engine oil breakdown during high-performance driving or under loads
- Heavy-duty 730 cold-cranking amps battery:
- 80 Amp-hr
- Maintenance-free with rundown protection and retained accessory power
- Hitch Guidance:
- When in Reverse, displays a centered guideline on the Rear Vision Camera view1
- Can help you line up the hitch to your trailer
- When driving, lets you check the trailer using Rear Vision Camera view
- Keyless Start:
- Uses an integrated key fob sensor instead of a traditional key
- Keep your keys in your purse or pocket to start your vehicle
- With the vehicle in Park or Neutral, press the brake pedal and then press the engine start/stop button to start the engine; the green indicator on the button will illuminate
- Shift to Park and press the engine start/stop button to turn off the engine
- Mechanical jack with tools
- Mechanical limited-slip rear differential:
- When the differential senses a significant difference in wheel speed, it locks to turn both rear wheels in unison for added traction
- Redistributes power to the drive wheels, providing you with more control
- Helps your vehicle power through the tough terrain by keeping the rear wheels moving together
- Premium Smooth Ride suspension:
- Designed to offer passengers a more comfortable ride by isolating the interior cabin from rough pavement
- Single-outlet exhaust
- Trailer sway control:
- Helps prevent trailer sway by monitoring driver steering input and then automatically applying the trailer brakes
- Trailering equipment:
- Trailering hitch platform
- 2" trailering receiver
- 7-wire electrical harness and 7-pin connector for connecting your trailer's lights and brakes to your vehicle
- 7 airbags (requires front bucket seats):
- Frontal airbags for driver and front outboard passenger1
- Seat-mounted side-impact airbags for driver and front outboard passenger1
- Driver inboard seat-mounted side-impact airbag1 (requires bucket seats)
- Head-curtain airbags for front and rear outboard seating positions1
- Includes front outboard Passenger Sensing System for frontal passenger airbag and illuminates a status light that indicates whether the airbag is on or off1
- Blind Zone Steering Assist:
- Can alert you and provide a brief, firm turn of the steering wheel when a potential crash is detected with a moving vehicle in the lane you're entering1
- Buckle to Drive:
- Helps remind the driver to buckle their seat belt before driving by preventing the vehicle from being shifted out of PARK temporarily when the driver's seat belt is not buckled
- The feature also reminds the front passenger to buckle up, if equipped
- Enhanced Automatic Parking Assist:
- Can automatically steer, brake, and shift gears to park your vehicle into a detected parallel or perpendicular parking space1
- Can also help you unpark your vehicle
- You must always be prepared to override the feature and take control
- Forward Collision Alert:
- Warns you if it detects a potential collision with a detected vehicle you're following so you can take action1
- Can also provide a tailgating alert if you're following a vehicle much too closely
- HD Surround Vision:
- Provides selectable digital camera views of the area around your vehicle1
- Can help you park or avoid vehicles and objects1
- You can also display a guideline to show where your vehicle is heading1
- Hill Start Assist:
- When you are stopped on an incline, this feature keeps the brakes engaged for a split second as you transition from brake pedal to gas pedal
- Automatically releases once you press down on the accelerator
- Prevent vehicle roll-back while the driver moves his/her foot from the brake to the accelerator pedal
- LATCH System:
- Lower Anchors and Tethers for CHildren system helps make it easy to install and secure a compatible child restraint seat
- Lane Keep Assist with Lane Departure Warning, enhanced:
- Uses a brief steering wheel turn to alert you when it detects you are unintentionally drifting out of your lane lines1
- System alerts do not occur if you're using your turn signal, or it detects you may be intentionally leaving your lane
- You may receive additional Lane Departure Warning alerts if needed
- OnStar Basics:
- Drive confidently with core OnStar services including1
- Remote commands
- Built-in voice assistance
- Real-time traffic and navigation
- Automatic Crash Response
- OnStar® services capable:
- See onstar.com for details and limitations. Services vary by model. Service plan required.
- Rear Cross Traffic Braking:
- When in Reverse, alerts you or automatically provides hard emergency braking to prevent a collision with detected vehicles crossing behind you1
- Rear Pedestrian Alert:
- When you're in Reverse, alerts you to detected pedestrians directly behind your vehicle1
- Limited nighttime and low visibility performance
- Rear Seat Reminder:
- Helps to remind the driver to check the back seat(s) before leaving the vehicle1
- Activates when rear doors are opened and closed up to 10 minutes before or anytime while your vehicle is on
- Under certain conditions, once the vehicle is switched off, designed to sound audible chimes and display a visual message within the driver display
- Activates only once each time the vehicle is turned on and off, and would require re-activation on a second trip
- Rear child security door locks:
- When activated, prevents passengers from opening the rear doors from inside the vehicle
- Allow rear doors to open from outside of the vehicle only
- Safety Alert Seat:
- Uses left-, right- or both-side driver seat vibration pulses to help you detect and identify the direction of potential crashes1
- You can also switch to beeping crash avoidance alerts
- Side Bicyclist Alert:
- Alerts you to a detected bicyclist that is approaching a side blind zone1
- During a brief time after parking, the feature can alert you when a detected bicyclist is approaching so you don't open your door
- Teen Driver:
- Helps encourage safe driving habits for teens by providing an in-vehicle report card1
- Activates certain safety systems, if equipped, when a Teen Driver-designated key fob is used
- Mutes the radio until the front-seat occupants fasten their seat belts
- Tire Pressure Monitoring System:
- Monitors the pressure in each tire and alerts you if there is a low-pressure condition in one or more of the tires1
- Includes Tire Fill Alert1
- Warning tones:
- Include headlamp on, driver and right-front passenger seat belt unfasten and turn signal on
- Enhanced Automatic Emergency Braking:
- Can help you avoid or reduce the severity of collisions with a detected vehicle you're following1
- Radar and camera technology are used to automatically provide hard emergency braking or enhance the driver's hard braking
- Works at speeds above 2 mph
- Front Pedestrian and Bicyclist Braking:
- At speeds between 5 and 50 mph, can help you avoid or reduce the severity of a collision with a pedestrian or bicyclist it detects directly in front of you1
- Provides alerts and can automatically provide hard emergency braking or enhance driver's hard braking
- Limited nighttime and low visibility performance
- Intersection Automatic Emergency Braking:
- Can help you avoid or reduce the severity of an intersection collision with a detected cross-traffic vehicle1
- Can automatically provide hard emergency braking or enhance your hard braking
- Reverse Automatic Braking:
- Alerts you and/or automatically provides hard emergency braking when in Reverse1
- Can help avoid collisions with detected vehicles and objects directly behind you
- StabiliTrak, electronic stability control system with traction control:
- Automatically helps enhance control, particularly during emergency maneuvers, by adjusting the brakes and engine torque to help you stay on your intended path
- Activates when vehicle sensors detect a difference between the driver's intended path and the direction the vehicle is actually travelling
- Includes Traction Control that detects wheel slippage and applies brake pressure and/or reduces engine power to help the driver maintain control when accelerating on wet or snow-covered roads
- Includes Brake Assist that senses how hard and fast a driver hits the brake pedal and gives extra braking assistance, if required
Dealer Notes
KBB.com Consumer Reviews
- 5.0
Wonderful
By Michael on 12/5/2025 4:19:55 PM
Zero problems at 56,000 miles. Best car I’ve ever owned. Averaging 18.5 mpg with mostly highway driving. - 5.0
Stylish, Great Vehicle
By Stan on 11/30/2025 10:12:49 AM
Decided to buy the High Country. It truly is a fine example of a high end Tahoe. It is loaded with features that make the driving experience enjoyable. - 4.0
Great SUV
By Anonymous Reviewer on 6/19/2025 1:01:47 AM
We have a 2023 Chevy Tahoe High Country fully loaded and we love it. Basically a Cadillac without the 40k extra price tag. It’s spacious and comfortable but sometimes the electronic running boards don’t deploy when we open the door and we recently had a dilemma with Chevy over our Onstar service not working it took 3 months until it got fixed. Works great now. We also took it out to Utah after we got it and took it off-roaring a bit and although the TV screens nearly fell off it clung to the trail without any loss of traction. Highly recommend but does depreciate fast.
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