General Motors knows of 20 minor accidents and two alleged minor injuries linked to a software fault that can briefly remove braking from 67,380 electric vehicles.
The recall covers certain Cadillac Lyriq, Vistiq and Celestiq models, plus Chevrolet Blazer EVs in SS and Police Pursuit Vehicle form. Two-wheel-drive Lyriqs are excluded. The defect concerns vehicles with performance all-wheel drive, identified as pAWD, RPO X0E.
The trigger is oddly specific. A driver lightly brakes at low speed during a sharp turn, then the vehicle crosses a bump or depression, such as the end of a driveway. If the brakes momentarily release and engage again, the software’s slip calculation can misread wheel movement and temporarily interrupt braking. Normal function should return with the next brake application.
A garage collision starts the investigation
The latest inquiry followed a low-speed collision in which a 2024 Cadillac Lyriq struck a garage. On April 10, 2026, a GM technical expert submitted the matter to the company’s Speak Up for Safety programme. Internal testing reproduced the fault.
GM subsequently found 24 field complaints, received between February 24, 2024, and June 11, 2026. Twenty involved minor accidents and two included allegations of minor injuries. The company told the National Highway Traffic Safety Administration about the recall in a letter dated October 29.
Lyriqs account for most of the affected vehicles: 474 from 2023, 22,819 from 2024, 11,926 from 2025, 9,322 from 2026 and 44 from 2027. The Vistiq contribution is 13,627 vehicles from 2026 and 5,175 from 2027. GM also listed 51 Celestiqs from 2025 and 31 from 2026.
The Chevrolet portion comprises 562 Blazer EVs from 2024, 2012 from 2025, 1,314 from 2026 and 23 from 2027.
A second attempt at the software
This is not GM’s first pass at the problem. It recalled 21,469 all-wheel-drive Lyriqs for a similar issue in 2024. Vehicles built with the resulting software changes, and vehicles that received that recall update, remain susceptible and require the new correction.
The remedy again modifies the slip calculation in the brake system control module. That is also what the earlier repair was intended to address. As ever, the detail that matters is whether the revised calculation survives contact with an actual driveway rather than merely the test procedure.
GM has introduced software corrections in production over the past few months. For existing vehicles, the update is free. Owners who have opted into over-the-air downloads can receive it that way; others must visit a dealership. Vehicle identification numbers are already searchable on NHTSA’s website.
Owner notification letters are expected to be mailed on December 14, 2026. GM’s recall number is N262570900, while the NHTSA campaign number is 26V717.
Sources
- GM Recalls Over 67,000 Chevy Blazer EVs And Cadillac Lyriqs, Vistiqs, And Even Celestiqs For Temporary Loss Of Braking
- GM Recalls Over 67,000 Chevy Blazer EVs And Cadillac Lyriqs, Vistiqs, And Even Celestiqs For Temporary Loss Of Braking – Jalopnik
- GM is recalling more than 67,000 Cadillac and Chevy EVs over a brake software defect
Photo: Mr.choppers (CC BY-SA 3.0)
