General Motors just froze sales of roughly 3,300 C8 Corvettes over a piece of software that does one job — tell you when your rear turn signals aren’t working — and can’t do it.
The stop-sale and recall covers select 2025 and 2026 model year cars. The culprit is a flaw in the Rear Brake Light Outage Detection module, which is supposed to alert the driver when an exterior lamp fails. Instead, you could be driving around with dead turn signals and never know it.
That’s a federal violation — specifically Section S9.3.6 of FMVSS No. 108, the regulation governing exterior lighting.
The numbers break down to 438 units from the 2025 model year and 2,886 from 2026. No hardware is damaged. No bulbs are blown. The lights themselves work fine. It’s purely a software oversight in the module’s monitoring function, which makes the whole thing feel both trivial and absurd — a multi-thousand-unit sales halt triggered by a notification glitch.
For 2026 cars, GM already has a fix ready. Owners who’ve opted into over-the-air updates can patch their Corvettes from anywhere with a wireless signal. Everyone else gets a trip to the dealer for a manual flash.
The 2025 cars are a different story. GM hasn’t finished writing the software update for those vehicles yet. Until it does, those 438 Corvettes sit. Owners wait. Dealers wait. Nobody moves metal.
That gap — a fix for one model year but not the other — is the wrinkle worth watching. GM hasn’t explained why a software patch that works on the 2026 module can’t be adapted to the 2025 hardware. Telling 438 owners their cars are grounded indefinitely while the newer batch rolls through a quick OTA patch is not a great look.
The timing stings, too. Chevrolet is riding high on the C8 platform right now. The Grand Sport and Grand Sport X just debuted, the new 6.7-liter LS6 V-8 is generating real excitement, and the Corvette team has more momentum than it’s had in years. A stop-sale over a lamp monitoring bug won’t derail any of that, but it’s the kind of nuisance that chips away at a moment when everything else is going right.
Dealers holding 2026 inventory can update the cars in-house and resume selling almost immediately. The practical impact on sales volume should be minimal. But the 2025 owners stuck without a timeline are left in a familiar modern-car limbo: the hardware is fine, the car runs perfectly, and yet a few lines of missing code keep it sidelined.
You can check whether your Corvette is affected by entering your VIN at GM’s recall website. The internal program number is N252541250. The recall has not yet appeared on NHTSA’s site, but MotorTrend independently verified its existence through GM’s own system.
Three thousand three hundred cars. Zero broken parts. One missing software update. Welcome to the era of the connected automobile, where a notification about a notification can stop everything cold.
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