U0422 on 2023-2025 Buick Encore GX — Invalid Data Received From Body Control Module
1 vehicles · 1 makes · $200-$600 repair
How to diagnose and fix U0422: most-reported vehicles
Ranked by owner reports. Each card gives the symptoms, how to confirm the cause, the fix, parts and sources for that vehicle.
Buick Encore GX · 2023–2025
On later Encore GX models the Lane Keep Assist with Lane Departure Warning system applies an inappropriate steering torque that pulls the vehicle across the centerline rather than back into the lane. NHTSA complaints describe a sudden, forceful takeover of the steering wheel toward oncoming traffic, requiring the driver to fight the system. CarComplaints lists Lane Assist as the leading reported problem on the 2025 model year. The behavior appears tied to camera misinterpretation of lane markings - faded lines, tar seams, construction striping, shadows and crest transitions - compounded by camera calibration that was never performed or was performed incorrectly after a windshield replacement.
Common Symptoms
- Steering wheel jerks or grips forcefully toward the centerline
- Vehicle steers toward oncoming traffic without driver input
- Repeated false lane departure alerts on clearly marked roads
- System activates over tar seams or old lane markings
- Behavior worsened after a windshield replacement
How to Fix
Have the front camera module recalibrated - this is mandatory after any windshield replacement and is the most common root cause of biased lane centering. Verify the camera's mounting bracket is fully seated and the windshield in front of it is free of distortion or an aftermarket tint strip, and confirm the vehicle is on the latest camera/ADAS module software, since GM addresses lane-centering behavior through calibration files. Check tire pressures and alignment, because a mechanical pull the system compensates for changes its torque output. Until it is corrected, Lane Keep Assist can be disabled through the vehicle settings menu; report the incident to NHTSA, since ADAS defects are only investigated when complaint volume builds.
Sources for this issue (2)
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U0422 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does U0422 mean?
U0422 stands for "Invalid Data Received From Body Control Module." Sets when a module receives invalid or implausible data from the Body Control Module over the bus. Because the BCM coordinates many functions, symptoms can be broad.
What are the most common causes of U0422?
The most common causes of U0422 are: CAN bus wiring fault or poor ground, Weak battery / low voltage, Faulty BCM, Connector corrosion, Calibration mismatch. The specific cause varies by vehicle.
How much does it cost to fix U0422?
Repair costs for U0422 range from $200 to $600, depending on the vehicle and root cause.
Which vehicles are affected by U0422?
Au7o has documented U0422 across 1 vehicle models from 1 manufacturers: Buick.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.