General Motors Co. is recalling more than 67,000 electric vehicles over a software glitch that can cause loss of braking at low speeds.

At issue is software that helps prevent slipping by tracking wheel movement. The software does not always correctly interpret wheel movement, which in some cases has caused the brakes to malfunction, according to a report from the National Highway Traffic Safety Administration.

The recall affects Cadillac LYRIQs from model years 2023-2027, model year 2025 and 2026 CELESTIQs, 2026–2027 model year VISTIQs and Chevrolet Blazer EV models from 2024-2027.

GM received complaints of 20 minor accidents, including two with minor injuries, potentially related to the glitch.

"When the brakes are lightly applied at low speeds during a sharp turn and the vehicle encounters a bump or depression — such as at the end of a driveway — a momentary release and reapplication of the brakes may cause the software’s slip calculation to misinterpret wheel movement," regulators wrote. "In some instances, this may result in a temporary loss of braking."

Brakes function normally when pressed a second time, according to the report.

GM spokesperson Bill Grotz in an email said the issue can be fixed with an over-the-air software update that the automaker has started delivering. He said dealers also have access to software needed for the fix, which is free.

“The safety and satisfaction of our customers are the highest priorities for the entire GM team," Grotz said, "and we’re working to remedy this matter as quickly as possible.”

A GM technical expert in April reported the issue to the company's Speak Up for Safety Program "after reviewing an incident involving a 2024 Cadillac LYRIQ that struck a garage at low speed," according to federal safety officials.

The company opened an internal investigation in August following some preliminary testing, then issued a voluntary recall late last month.

CEO Mary Barra started Speak Up for Safety in 2014 to encourage employees to flag safety concerns after the company faced record-setting civil penalties and increased federal oversight over a recall of 2.59 million older cars with a deadly ignition switch defect that was delayed by more than a decade.

LYRIQs from model years 2023 and 2024 were recalled for a similar issue with brake software two years ago. After reports of issues this year, GM determined the prior software update did not fully address glitches that can happen in these specific circumstances.

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