2026 GMC Sierra 1500 4WD Crew Cab 147 AT4 — EcoTec3 6.2L V-8 with 10-speed automatic; powerful 420 hp V-8 performance with modern automatic shifting a… Read More…
2026 GMC Sierra 1500 4WD Crew Cab 147 AT4 — EcoTec3 6.2L V-8 with 10-speed automatic; powerful 420 hp V-8 performance with modern automatic shifting and competitive fuel economy. Pricing was recently adjusted, so now is a smart time to act to secure this capable, off-road-ready truck before inventory changes.
Wireless Apple CarPlay and Android Auto keep your apps, navigation and messages mirrored to the Sierra’s display without the hassle of cords, so you stay connected on the road.
<b>Forward collision mitigation</b> constantly scans ahead and steps in with protective measures if a sudden stop appears likely, helping to reduce the chance or severity of a frontal impact.
<b>Front pedestrian impact prevention</b> helps the truck detect and track people crossing the roadway and can take preventive action if a collision becomes probable, adding an extra layer of safety in busy areas.
An integrated <b>mobile hotspot</b> lets passengers access the internet through the truck’s private connection, so everyone can stream, navigate, or work without draining phone data.
A <b>rear camera</b> provides a clear view behind the vehicle when reversing, making parking and hitching safer and more convenient by revealing obstacles you might not see otherwise.
<b>Lane departure prevention</b> watches lane position and can intervene to help keep you centered, reducing the chance of unintentional drift and improving peace of mind on long drives.
<b>Rear collision mitigation</b> monitors what’s behind the truck and prepares the vehicle and occupants if a rear impact looks imminent, helping to lessen potential damage or injury.
<b>Adaptive cruise control with traffic stop-go</b> maintains a safe following distance and can bring the truck to a stop and resume in traffic, making highway driving and congestion far less stressful.
<b>Predictive brake assist</b> readies the braking system when closing distances shorten too quickly, so your brakes respond more effectively when you need to stop fast.
The 2026 GMC Sierra 1500 AT4 blends robust V-8 capability with advanced driver aids and modern connectivity, delivering confidence whether you’re off-road, towing, or commuting
<p>Financing available on approved credit. Trade-ins accepted. All Vehicles are subject to prior sale. All Pricing and Advertised Prices for any/all vehicles offered for sale does not include dealer installed accessories which can be purchased for an additional cost. Dealer Installed accessories include KARR Security System $995, NOMAD Protection $1,195, GMP Theft $899, Forever Start Lifetime Unlimited $799, ClearPRO Door Protection up to $795. No sales to Dealers, Brokers or Exporters. For out of state purchase, customers must be present to purchase. If shipping is required, dealership must facilitate; no exceptions. Please contact us for special Multi-Vehicle or Fleet pricing. Prices are plus government fees and taxes, any finance charges, $85 documentary fee, $37 electronic registration fee, any emission testing charge and $1.75 per new tire state tire fee. While every reasonable effort is made to ensure the accuracy of this information, we are not responsible for any errors or omissions contained on these pages. Images, prices, and options shown, including vehicle color, trim, options, pricing and other specifications are subject to availability, incentive offerings, current pricing and credit worthiness. Images are for illustrative purposes only. Serving <strong>Tustin</strong> <strong>Santa Ana</strong>, <strong>Orange</strong>, <strong>Irvine,</strong> <strong>Villa Park</strong>, <strong>Anaheim Hills</strong>, <strong>Costa Mesa</strong>,<strong>Walnut, Costa Mesa, Huntington Beach, Garden Grove, Aliso Viejo, Laguna, Anaheim, Orange County, Lake Forest, Laguna Nigel, Laguna Hills</strong>and <strong>Newport Beach</strong></p> Read Less
Chassis Details
Mileage
12,418
Stock Number
16600P
Stock Type
Used
Year
2026
Make
GMC
Model
Sierra 1500
Class
2
Drivetrain
4WD
Cab Type
Crew
Vehicle Trim
AT4
Vehicle VIN
1GTUUEEL7TZ266332
Interior Color
Jet Black
Seating Capacity
5
Exterior Color Description
Summit White
Engine Cylinder Count
8
Transmission Type
Automatic
Fuel Type
Gasoline
Engine Model
L87
Engine Size (L)
6.2
Brake Type
Hydraulic
Vehicle Options
Navigation System
Trailering Package
7 Speakers
AM/FM radio: SiriusXM with 360L
Premium Bose 7-Speaker Sound System
Radio data system
Radio: Premium GMC Infotainment Audio System
SiriusXM with 360L Trial Subscription
Steering Wheel Audio Controls
Air Conditioning
Automatic temperature control
Electric Rear-Window Defogger
Front dual zone A/C
Rear window defroster
120-Volt Bed Mounted Power Outlet
120-Volt Interior Power Outlet
Driver Memory
Memory seat
Power driver seat
Power Front Passenger Windows with Express Up/Down
Power Front Windows with Driver Express Up/Down
Power Rear Windows with Express Down
Power steering
Power windows
Push Button Start
Remote keyless entry
Remote Vehicle Starter System
Steering wheel mounted audio controls
Auto-Locking Rear Differential
Off-Road Suspension
Power Rake and Telescoping Steering Column
Speed-sensing steering
Traction control
4-Wheel Disc Brakes
ABS brakes
Dual front impact airbags
Dual front side impact airbags
Emergency communication system: OnStar
Front anti-roll bar
Front wheel independent suspension
Keyless Open and Start
Low tire pressure warning
Occupant sensing airbag
Overhead airbag
Power Door Locks
Brake assist
Electronic Stability Control
Hill Descent Control
Auto High-beam Headlights
Delay-off headlights
Front fog lights
Fully automatic headlights
Perimeter Lighting
Panic alarm
Security system
Theft Deterrent System (unauthorized Entry)
Speed control
220 Amp Alternator
Block heater
Heavy-Duty Air Filter
Auto-dimming door mirrors
Black Chrome Grille Insert Bars
Bumpers: body-color
Heated door mirrors
IntelliBeam Automatic High Beam on/Off
LED Cargo Area Lighting
Power door mirrors
Rear step bumper
Rear Wheelhouse Liners
Spray-on Pickup Bedliner with GMC Logo
2 Charge/Data USB Ports Inside Center Console
2 Type-C Charge-Only Rear USB Ports
2 USB Ports
Apple CarPlay/Android Auto
Auto-dimming Rear-View mirror
Automatic Emergency Braking
Buckle to Drive
Color-Keyed Carpeting Floor Covering
Compass
Driver door bin
Driver vanity mirror
Floor-Mounted Center Console
Following Distance Indicator
Forward Collision Alert
Front Pedestrian Braking
Front Premium Floor Liners with Removable Carpet Insert
Front reading lights
HD Surround Vision
Heated steering wheel
Illuminated entry
Lane Keep Assist with Lane Departure Warning
OnStar Services Capable
Outside temperature display
Overhead console
Passenger vanity mirror
Rear Cross Traffic Braking
Rear Pedestrian Detection
Rear Premium Floor Liners with Removable Carpet Insert
Rear reading lights
Rear seat center armrest
Safety Alert Seat
Tachometer
Telescoping steering wheel
Tilt steering wheel
Trailer Camera Provisions
Trailer Side Blind Zone Alert
Trip computer
Ultrasonic Front and Rear Park Assist
Voltmeter
Wi-Fi Hotspot Capable
Wireless Apple CarPlay/Wireless Android Auto
Wireless Charging
10-Way Power Driver Seat Adjuster with Lumbar
10-Way Power Passenger Seat Adjuster with Lumbar
Front Bucket Seats
Front Center Armrest
Heated 2nd Row Outboard Seats
Heated Driver and Front Outboard Passenger Seating
Price above does not include any of the Build & Quote options.
Vehicle available NOW in Tustin, CA.
Contact Tustin Buick GMC for more info.
Disclaimer:
*Net Cost includes a Factory Rebate, if applicable, on this vehicle and is valid on a cash or financed purchase only by an individual for their personal use. The sale price or net cost does not apply to a lease. *All Pricing and Advertised Prices for any/all vehicles offered for sale does not include dealer installed accessories which can be purchased for an additional cost. *The Factory Rebates may not be available on this vehicle if you elect to take advantage of a Special Alternative APR or Special Lease program. Some Factory Rebates are California Resident specific and may vary for residents of other states. *No sales to Dealers, Brokers or Exporters. For out of state purchase, customers must be present to purchase. If shipping is required, dealership must facilitate; no exceptions. The price shown is for California residents and retail customers only. Not available to fleet or commercial customers (unless specified). Please contact us for special Multi-Vehicle or Fleet pricing. Prices are plus government fees and taxes, any finance charges, $85 documentary fee, $33 electronic registration fee, any emission testing charge and $1.75 per new tire state tire fee. All vehicles are subject to prior sale. *While every reasonable effort is made to ensure the accuracy of this information, we are not responsible for any errors or omissions contained on these pages. Leasing & financing available on approved credit. Trade-ins accepted. * The estimated selling price that appears after calculating dealer offers is for informational purposes, only. You may not qualify for the offers, incentives, discounts, or financing. Offers, incentives, discounts, or financing are subject to expiration and other restrictions. See dealer for qualifications and complete details. *Images, prices, and options shown, including vehicle color, trim, options, pricing and other specifications are subject to availability, incentive offerings, current pricing and credit worthiness.