What is new for the 2027 GMC Sierra 1500 for Oklahoma City drivers?
The 2027 Sierra 1500 is a new generation with two new V8s (5.7L and 6.6L), the TurboMax, a redesigned cabin with a 16.3-inch articulating touchscreen, and a six-trim lineup from Pro to Denali Ultimate. Bob Howard Buick GMC at 13300 Broadway Ext in Oklahoma City sells the Sierra 1500 and takes test-drive reservations online.
For an Oklahoma City buyer, the trim, the engine and the towing rating decide more than the headline changes do.
Keep reading below, then schedule a test drive in Oklahoma City. Bringing your own numbers to the lot settles this faster than any spec sheet.
What is new on the 2027 GMC Sierra 1500?
The 2027 Sierra 1500 is the new generation GMC has launched, and its changes reach the engines, the cabin and the trim list. Bob Howard Buick GMC sells the Sierra 1500 alongside the Sierra HD, the Canyon, the Yukon and the Yukon XL.
GMC’s published Sierra 1500 figures for the 2026 model year give a buyer a fixed set of measurements to compare. In the Crew Cab, first-row legroom measures 44.5 inches. Maximum cargo room is 62.9 cubic feet with the short bed and 71.7 cubic feet in the standard bed.
Which engines come on the 2027 Sierra 1500?
The 2027 Sierra 1500 offers a new 5.7L V8, a new 6.6L V8, the TurboMax and the 3.0L Duramax Turbo-Diesel.
Towing depends on the engine and the build.
What is different inside the 2027 Sierra 1500 cabin?
The new cabin centers on a 16.3-inch articulating touchscreen.
Which 2027 Sierra 1500 trim fits your driving?
The 2027 Sierra 1500 comes in six trims: Pro, Elevation, AT4, AT4X, Denali and Denali Ultimate. Pick the Pro if the truck will work hard and price matters most. Pick the Elevation if the truck also carries the family. Pick the Denali or Denali Ultimate if comfort and technology come first.
Whichever trim you pick, Oklahoma adds its motor vehicle excise tax to the price of a new vehicle. Plan the payment around the trim’s full price, not the sticker alone.
Which 2027 Sierra 1500 trims are built for off-road driving?
The AT4 and AT4X are the off-road trims in the 2027 lineup. The AT4 already carries a 2-inch factory lift and monotube shocks.
If you drive rough trails, start with the AT4 build and compare the AT4X against it on the trail you actually run.
How much can a 2027 Sierra 1500 tow and haul in Oklahoma?
Towing and payload depend on the engine, cab, bed and trim, and GMC publishes a maximum for each build.
For a daily truck that also pulls a weekend trailer, the Crew Cab trims give more room in the second row. Check the trailering chart for your exact cab, bed and drive before you commit to a hitch setup. The cargo figures above set the bed you need.
Where can you see, trade for and finance a 2027 Sierra 1500 in Oklahoma City?
A secure finance application can be completed online, and the store also offers GMC leases. Bob Howard Buick GMC sells new GMC trucks, including the Sierra 1500, at 13300 Broadway Ext in Oklahoma City. The store offers new Buick and GMC leases alongside new and pre-owned financing, and a leased Buick GMC vehicle can be bought out at any time during the lease.
In a July 2026 Google review, Melissa Z. wrote: “Edward was very helpful and super responsive. He found us a great van and we are very happy!” That visit describes a fast, responsive sales contact, which is what a Sierra buyer needs when comparing a lease with a loan. The store says it is in Oklahoma City and also serves Midwest City, Del City and Moore.
Frequently asked questions
Is the 2027 GMC Sierra 1500 a redesign?
Yes, the 2027 Sierra 1500 is a new generation. The basic warranty on the 2026 Sierra 1500 runs 3 years or 36,000 miles, whichever comes first. The powertrain warranty typically runs 5 years or 60,000 miles, whichever comes first, though other durations are available.
What is the starting price of the 2027 GMC Sierra 1500?
On GMC’s 2027 price list, the Sierra 1500 Pro starts at $39,300 and the Denali Ultimate starts at $85,100. The Elevation lists at $50,200, the AT4 at $70,700, the Denali at $70,900 and the AT4X at $82,700. Oklahoma charges a motor vehicle excise tax of 3 1/4% on a new vehicle (Oklahoma Statutes, Title 68, Section 2103, 2026).
Does the 2027 Sierra 1500 still offer a diesel engine?
Yes, the 3.0L Duramax Turbo-Diesel is part of the 2027 Sierra 1500 engine lineup. The EPA certified figures for the 2027 model year show the 2WD diesel at 22 mpg city and 27 mpg highway.
Is the 2027 GMC Sierra out yet?
The fastest way to find out is to browse the new GMC truck inventory on the Bob Howard Buick GMC website, which shows the Sierra 1500 builds listed right now. If the trim or engine you want is not listed yet, ask the store when you call whether and when that build will arrive. In the meantime, you can value your trade and get a fast online pre-approval, so you know your numbers before you finish in store.
How Bob Howard Buick GMC lets you start Sierra financing online
Picking a Sierra 1500 trim is easier when you know how you will pay for it. Bob Howard Buick GMC has a 4.4 rating across 3,983 Google reviews, and 79 in 100 of them are five-star.
In a July 2026 Google review, Kailyn R. wrote: “We had a great experience at Bob Howard’s. Wayne our sales professional was very good and patient during our experience. We found the perfect vehicle. I couldn’t recommend them enough.” Choose the trim that fits your work and your towing, then bring your numbers to 13300 Broadway Ext.
Bob Howard Buick GMC is where a 2027 Sierra 1500 buyer compares trims, applies for financing online and reserves a test drive. Start with the trim you want, and bring your towing and cargo needs to the store.
Bob Howard Buick GMC answers this question against the specific vehicle in front of you rather than the model in general. Value your trade and get pre-approved online, then see us at our Oklahoma City showroom, or call (405) 928-0697.
Disclaimer: Vehicle features, specifications, pricing, options, and availability may vary based on production timelines and dealership inventory; images are for illustrative purposes only. Starting MSRP figures are national and exclude destination freight charges, tax, title, license, and dealer fees. Standard and available equipment varies by trim, configuration, and model year; confirm the specification of the individual vehicle before purchase. Maximum towing and payload ratings depend on cab, bed, drivetrain, and equipment configuration; see the vehicle’s Owner’s Manual and trailering guide for limits. Electric range and charging times vary with battery, configuration, temperature, terrain, load, and driving habits. Safety or driver assistance features are no substitute for the driver’s responsibility to operate the vehicle in a safe manner. Financing and pre-approval are subject to credit approval. Contact Bob Howard Buick GMC for complete details regarding current vehicle inventory, pricing, and equipment.
