GM Q3 Sales Drop 5.5% as Cadillac Plunges 30% and EV Sales Collapse

General Motors reported GM Q3 sales 2026 of 670,974 vehicles in the United States, a 5.5% year-over-year decline, as the post-subsidy collapse in electric-vehicle demand and a round of discontinued models dragged down the industry’s biggest domestic automaker, according to Reuters. Reuters put the year-ago figure at 710,347 units, confirming the five-and-a-half-point drop the company reported on October 1.

The result came in slightly better than expected — Edmunds had forecast 669,044 sales, a 5.8% decline, according to the Detroit Free Press. But beneath the headline, GM’s third quarter laid bare the sharpest Detroit-versus-Japan divide of the quarter: while GM shrank, Toyota, Honda and Hyundai-Kia all grew.

GM Q3 sales 2026: brand-by-brand breakdown

The four GM brands moved in very different directions. Chevrolet, GM’s volume engine, fell 4.6% to 437,321 vehicles, according to the Detroit Free Press. GMC declined 4.7% to 157,103. Buick was the lone bright spot, rising 7.9% to 43,990 — the strongest percentage gain among the company’s brands.

Cadillac was the quarter’s disaster: the luxury brand’s sales plummeted 30% to 32,560 vehicles, according to the Detroit Free Press, as its EV-heavy lineup got crushed by the post-tax-credit demand reversal. GM attributed the overall decline to a smaller-than-anticipated electric-vehicle market and to discontinued models — the Chevrolet Malibu and Camaro, plus the Cadillac XT4 and XT6 — which left unfavorable year-over-year comparisons, according to the Free Press.

The EV collapse behind the GM Q3 sales 2026 decline

A year ago, U.S. buyers rushed to purchase electric vehicles ahead of the expiration of the $7,500 federal tax credit, producing a pull-forward boom that made this quarter’s comparisons brutal. GM’s electric lineup fell off a cliff: Chevrolet Equinox EV deliveries plunged 92.4%, the Blazer EV fell 84.4%, and Hummer EV sales tumbled 72.9%, according to RocketNews.

The damage was detailed by Carscoops, which reported that Equinox EV sales collapsed from 25,085 in Q3 2025 to just 1,905 last quarter, Blazer EV volume fell to 1,261 units, and Hummer EV deliveries dropped to 1,423. Cadillac’s electric crossovers fared no better: the Lyriq fell 50.2% to 3,617 units, the Optiq slipped 6.9% to 4,550, the Vistiq dropped 34.1% to 2,587, and Escalade IQ and IQL sales fell 29.2% to 1,604, according to Carscoops.

GM said its sales of gas-powered vehicles were flat versus the prior year, according to the Free Press, and Edmunds’ head of insights Jessica Caldwell said replacement demand is keeping overall sales from plummeting — with high-income buyers “doing the heavy lifting” while budget-conscious households hang onto older cars, according to the Free Press.

Toyota closes in on GM while Honda and Hyundai-Kia grow

The most uncomfortable number for GM may be the one behind it. Toyota Motor North America sales rose 0.6% to 633,223, with electrified vehicles making up more than 57% of its mix and climbing 28.5% to 363,367 — narrowing the quarterly gap with GM to less than 136,000 vehicles, versus roughly 335,000 for the full prior year, according to the Detroit Free Press and RocketNews.

Honda reported a 9.3% third-quarter sales gain to 392,341, with a record 106,000 hybrids sold, while Hyundai-Kia posted a 5.4% increase to 506,200, according to RocketNews. Stellantis and Mazda declined slightly. Toyota’s hybrid-heavy lineup is benefiting from elevated fuel prices — the AAA national average reached $4.41 — and GM currently fields just one hybrid model, the Corvette E-Ray, according to RocketNews. Readers can see how the subsidy hangover hit other automakers in our Toyota Q3 sales breakdown.

Wall Street shrugs: GM stock gains about 3%

Despite the sales decline, GM shares gained about 3% to $79.29 on the report, according to Parameter — a sign investors had priced in the bad quarter and were focused on GM’s capital discipline instead. “Our business is performing very well, the launch of our next-generation full-size pickup trucks is on track, and we are making investments in new vehicles, innovative technologies, and our U.S. manufacturing footprint to drive our next phase of growth,” GM North America president Duncan Aldred said in a statement, according to the Detroit Free Press.

Still, with Edmunds predicting continued sales softening and Toyota’s electrified mix surging, GM heads into the fourth quarter needing its gas-powered pickups — and its next-generation full-size truck launch — to carry the load while its EV business waits for demand to find a post-subsidy floor.

FAQ

How many vehicles did GM sell in Q3 2026?

GM sold 670,974 vehicles in the U.S. in the third quarter of 2026, down 5.5% from 710,347 a year earlier, according to Reuters. It was the company’s third-quarter report released October 1.

Why did GM’s Q3 sales fall?

GM attributed the decline to a smaller-than-anticipated EV market following the September 30, 2025 expiration of the $7,500 federal tax credit, and to discontinued models including the Chevrolet Malibu and Camaro and the Cadillac XT4 and XT6, according to the Detroit Free Press.

How did each GM brand perform in Q3 2026?

Chevrolet fell 4.6% to 437,321 vehicles, GMC declined 4.7% to 157,103, Buick rose 7.9% to 43,990, and Cadillac plunged 30% to 32,560, according to the Detroit Free Press.

Is Toyota about to overtake GM in the U.S.?

Toyota narrowed the quarterly gap to less than 136,000 vehicles (633,223 vs GM’s 670,974), compared with roughly 335,000 for the full prior year, according to the Detroit Free Press. Toyota’s electrified vehicles made up over 57% of its mix, up 28.5% to 363,367.

Sources: Reuters; Detroit Free Press; RocketNews; Carscoops; Parameter.