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GM’s Next-Gen Silverado and Sierra Are Rolling Off the Line — Dealers Get the First Trucks This Year

Published November 12, 2026 at 10:58 pm UTC

Photo Credit: Chevrolet / General Motors

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America’s best-selling truck line is changing over, and the first new trucks are already rolling. General Motors has begun production of the next-generation 2027 Chevrolet Silverado 1500 and GMC Sierra 1500, CEO Mary Barra confirmed on the company’s third-quarter earnings call on October 20, with the first trucks reaching dealerships later this year. The rollout will be deliberately slow — three assembly plants, three engine plants, and a staggered changeover that stretches into 2027 — but for the millions of full-size truck owners watching the segment’s biggest launch in years, the wait is nearly over.

Key Takeaways

Production of the next-gen 2027 Silverado 1500 and Sierra 1500 has begun at GM’s Silao plant in Mexico, after four weeks of downtime for changeover.
First trucks reach dealers later in 2026, with V8-powered Crew Cab models arriving before Double Cab, Regular Cab, and lower trims.
Fort Wayne, Indiana, pauses for four weeks from mid-December, then restarts in January building the new trucks; Oshawa, Ontario, ends Silverado production in November and will not build the new generation.
Orion Assembly in Michigan joins in Q2 2027; GM expects roughly the same Silverado/Sierra volume in 2027 as in 2026, with more capacity in 2028.
GM says the new V8 endured 100,000+ dynamometer hours and 1.6 million miles of real-world validation; Super Cruise is standard on high trims and optional on most lower trims.
CEO Mary Barra on the launch: “We’re focused on a flawless launch. It’s on track right now.”

What’s New

This is a production story, not a reveal — the next-generation trucks were shown earlier in 2026, and what changed this week is that GM put dates and plants behind them. Silao, Mexico, is first out of the gate: the plant completed its changeover downtime and started building the new trucks in mid-October, with output ramping gradually over the coming months. GM’s plan is to start slowly and build volume as the other plants convert — a “flawless launch” strategy that prioritizes quality over an early flood of inventory.

The plant-by-plant schedule tells the rest of the story. Fort Wayne Assembly in Indiana — the high-volume heart of Silverado/Sierra production — pauses for four weeks beginning in mid-December and restarts in January building the new generation. Oshawa Assembly in Ontario ends Silverado 1500 production in November and will not build the next-generation model at all. Orion Assembly in Michigan joins the network in the second quarter of 2027. Until all three are online, supply will be tight: GM told analysts the changeover will cost roughly 35,000 fewer full-size pickups in the fourth quarter versus a year earlier, and that 2027 output will land about flat with 2026 before capacity opens up in 2028.

For buyers, the practical consequence is a split market for months: outgoing trucks selling down (GM says inventory and incentives are on plan, with discounting lighter than in the last changeover) alongside a slow trickle of new-generation trucks, starting with the most popular configuration — V8 Crew Cabs — before the rest of the lineup fills in.

Design and Performance

GM hasn’t used the earnings call to relitigate the trucks’ design or full spec sheets — those came with the reveal — but the call did surface two details that matter to truck buyers. First, validation: GM highlighted more than 100,000 hours of dynamometer testing and over 1.6 million miles of real-world validation for the new V8, a not-so-subtle message to buyers who remember rocky launches past. Second, technology: Super Cruise, GM’s hands-free highway system, will be standard equipment on the high trims and optional on most lower trims of the new trucks, with GM’s eyes-off successor version slated to debut on the Cadillac Escalade IQ in 2028.

The business context is just as telling. Full-size trucks carried GM’s quarter — North America earned $3.6 billion in adjusted EBIT on an 8.7% margin, and GM’s U.S. full-size pickup market share has grown 10 points since the current generation launched. The next-generation trucks aren’t just another model-year change; they’re the profit engine GM is counting on to fund everything else, from software to its scaled-back EV plans. That’s why Barra’s “flawless launch” line matters: a stumble here would be felt across the whole company.

What It Means for Enthusiasts

For the aftermarket, a new Silverado/Sierra generation is the biggest single event in the truck world — every bumper, grille, fender flare, and mud flap in the catalog eventually gets a new-generation version. But the key word is eventually: new-generation fitment takes time to develop, test, and list, and nothing from the outgoing trucks should be assumed to bolt onto the 2027s. If you own a current-generation truck, the catalog below is for you today; if you’re waiting on a 2027, the smart move is to watch for confirmed new-generation fitment rather than gambling on carryover parts.

There’s also a buying-strategy angle. With the outgoing trucks selling down on lighter-than-usual incentives and the new trucks arriving in small numbers, neither side of the changeover is a fire sale — but the outgoing generation’s deep aftermarket support is a genuine advantage for anyone who buys now and modifies immediately, versus waiting months for the new truck and then months more for its parts ecosystem to catch up.

Vicrez Products for Chevrolet Silverado 1500 and GMC Sierra 1500

Vicrez currently lists fitment for the 2019–2026 Chevrolet Silverado 1500 and GMC Sierra 1500 — the outgoing generation. The 2027 trucks are a new generation, and new-generation fitment has not yet been confirmed on vicrez.com — so the picks below are for current-generation truck owners today. Mud flaps are the simplest protection upgrade for a truck that actually works: ABS construction, factory-style fit, and vehicle-specific mounting hardware. Fitment years are exactly as listed on each product page.