California Lemon Law for Steering Assist Failures

Steering should feel predictable and supportive. When “steering assist” cuts out, becomes erratic, or bombards you with warnings, it can turn every trip into a safety concern. This post explains how California’s Lemon Law may apply to steering assist problems and offers practical steps for documenting repairs—so you can make informed decisions about your next move.

California Lemon Law and Steering Assist Failures

Steering assist problems typically involve either power steering (electric or hydraulic systems that make turning the wheel easier) or advanced driver-assistance features labeled as “Steering Assist,” “Lane Keep Assist,” or “Lane Tracing.” Common symptoms include a sudden loss of assist that makes the wheel hard to turn, intermittent assist that cuts in and out, persistent pull or drift, warning messages like “Steering Assist Reduced/Disabled,” and lights for EPS, lane keep, or stability control. In some vehicles, you may feel vibration or “notches” when turning, or the car may nudge you unexpectedly as driver-assist features misbehave.

California’s Lemon Law (part of the Song-Beverly Consumer Warranty Act) generally protects buyers and lessees when a covered vehicle has a defect that substantially impairs its use, value, or safety, and the manufacturer cannot repair it after a reasonable number of attempts during the warranty period. Steering assist failures often raise safety concerns because they affect the driver’s ability to control the vehicle. Whether a particular case qualifies depends on the facts, including the number of documented repair attempts, the severity of the issue, days the vehicle spent in the shop, and whether the problem persists under warranty coverage.

Examples we see in steering assist cases include repeat replacements of the electric power steering rack, torque sensor, control module, or clock spring; software updates or steering angle sensor calibrations that don’t hold; and recurring alerts after “fixes.” Some owners report wandering on the highway, inconsistent lane-centering, or wheel kickback over bumps. Others experience sudden heavy steering during parking or after start-up, especially in cold weather. If your service advisor mentions a Technical Service Bulletin (TSB) or a known software patch, keep copies—patterns of repeated, ineffective repairs can be important in evaluating your options.

Steps to Document Steering Assist Repair Attempts

Start by safely capturing what you’re experiencing. If a warning pops up—“Steering Assist Unavailable,” “Power Steering Fault,” or similar—take a clear photo or short video (only when safe to do so). Note the driving conditions (speed, temperature, road type), how the steering felt (heavy, jerky, drifting), and whether any driver-assist features were on. If the car feels unsafe, pull over in a safe place and consider roadside assistance rather than driving further.

Each time you visit the dealership, make sure the repair order states your complaint in your own words: “intermittent loss of assist,” “EPS light on,” “lane keep pulls vehicle left,” or “steering feels notchy.” Ask that the dealer record diagnostic codes, test drive notes, parts replaced, and software versions. Keep copies of every repair order and invoice, even if marked “No trouble found,” along with dates, mileage in/out, and the number of days your vehicle was out of service. A simple log—date, symptom, weather, and any warnings—can help the technician reproduce the issue.

Review your warranty booklet and check for recalls or TSBs related to steering, EPS, or driver-assist systems. Avoid modifications that could complicate diagnosis (e.g., aftermarket wheels with different offsets, altered ride height) until the issue is resolved. If repeated repairs don’t fix the problem, you can ask the dealer to open a case with the manufacturer. Some owners also explore manufacturer arbitration programs. For guidance tailored to your situation, consider contacting a California lemon law firm like ZapLemon to discuss your documents and options in a consultation.