2012 Toyota Prius Plug-In

Brake system complaints dominate what owners report for the 2012 Toyota Prius Plug-In. The most common thread is brake failure, with multiple owners describing the pedal going to the floor with little or no stopping response, sometimes accompanied by brake warning lights and audible alerts. Several reports specifically mention the ABS accumulator and booster failing, and in some cases traction control and ABS functions stopped working while driving. A smaller cluster of electrical system complaints rounds out the picture, though those reports are fewer and less specific in pattern. One isolated report describes a rear subframe separating along a weld point, though that appears to be a single account rather than a recurring theme. The brake pedal-to-floor symptom, often appearing alongside warning lights for stability control and ABS, is the clearest repeating pattern across these complaints.