General Motors has expanded a prior recall for a potentially dangerous transmission defect , adding over 90,000 vehicles to the nearly half a million already affected. The issue, which could cause the wheels to lock up unexpectedly,

General Motors is expanding a recall it issued last year as it discovered more vehicles affected by the problem. The recall, which covers a problem that could cause the wheels to lock up, now impacts more than a half-million vehicles from Chevrolet and Cadillac.

A major General Motors recall affects 90,000 Cadillac and Chevrolet vehicles due to a transmission defect that can cause wheel lock-up.