Trailblazer ABS + Lateral Sensor: Diagnosis Guide

Had the exact same issue on my 2012 Chevy Equinox diesel last winter. The diagnostic scan revealed a faulty lateral sensor that was affecting both the ABS and stability control systems. The steering angle sensor was also misaligned, which complicated things. The electronic control unit was getting incorrect readings, causing the ABS to malfunction. Turned out to be more serious than expected, not just a simple sensor replacement. The entire ABS control module needed reprogramming after the new lateral sensor was installed. The wheel alignment also had to be done since the steering angle calibration wouldn't stick without it. Definitely not a DIY job, requires proper diagnostic equipment and dealer-level programming tools. Worth noting that running with a faulty ABS is dangerous, especially in emergency braking situations. Would strongly recommend getting it checked by a certified shop that specializes in electronic control systems.

Thanks for sharing your experience. That's really helpful as it sounds exactly like what I'm dealing with. The yaw rate and traction control issues are pretty concerning, especially since I rely on the ABS for safety. Quick follow-up, do you remember roughly how much the total repair cost you? Just trying to budget for what's ahead. Also, has everything stayed working properly since the fix, or have you had any other sensor issues pop up? I'll definitely take your advice about finding a shop that knows their way around electronic diagnostics. The safety warning about faulty ABS is making me want to get this sorted sooner rather than later.

Thanks for asking about the costs. Just had this fixed last month, the lateral sensor fault is now completely resolved and everything's working like new. The total bill came to 1000 € for replacing the defective control unit. Haven't had a single issue since the repair, the vehicle stability system and ABS are functioning perfectly. Looking back, it was worth every penny for the peace of mind. The diagnostic scan shows all clear now, and the electronic control systems are working together as they should. The shop I used really knew their stuff with these sensor systems. They confirmed what I suspected, it wasn't just a simple sensor issue but required proper control unit replacement and reprogramming. The steering angle calibration is spot-on now too. Definitely the right call getting it fixed promptly. These systems are too important for safety to leave malfunctioning. Haven't had any warning lights or stability issues since, so I'd say the repair was a complete success.

Just got back from the mechanic, and wow, what a difference! After seeing your comments, I went straight to a certified electronics specialist. They ran a full diagnostic scan and found exactly what you described, issues with both the lateral sensor and steering angle calibration affecting the ABS and stability systems. Total bill came to around 950 Euro for parts and labor, pretty close to what you paid. They replaced the faulty sensor, reprogrammed the control module, and did a complete system calibration. The yaw rate readings are now perfect, and all the safety warning lights are finally off. The mechanic was really thorough, explaining everything they found. No more electronic stability issues, and the ABS is working perfectly again. Such a relief to have it sorted, definitely worth getting it done properly rather than trying cheaper shortcuts. Really glad I didn't put this off any longer. Feels so much safer driving now that all the systems are working together properly. Thanks again for pointing me in the right direction with this!