U0422 on Buick
Invalid Data Received From Body Control Module
U0422 on Buick vehicles indicates invalid data received from body control module. Au7o has documented this code across 1 Buick model — most commonly on Encore GX. 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. Typical repair costs on Buick range from $200 to $600, depending on the specific model and root cause.
Common Causes of U0422
- •CAN bus wiring fault or poor ground
- •Weak battery / low voltage
- •Faulty BCM
- •Connector corrosion
- •Calibration mismatch
U0422 on Buick by Model
Buick Encore GX(1 issue)
- Lane Keep Assist Steering Intervention Pulling the Vehicle Toward Oncoming Traffic2023-2025
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.
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View U0422 across all makes →Frequently Asked Questions
What does U0422 mean on Buick?▼
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. On Buick specifically, this code is documented across 1 model.
What causes U0422 on Buick vehicles?▼
Common causes on Buick: CAN bus wiring fault or poor ground, Weak battery / low voltage, Faulty BCM, Connector corrosion, Calibration mismatch. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix U0422 on a Buick?▼
Repair costs on Buick range from $200 to $600, depending on the specific model and root cause.
Which Buick models have U0422 documented?▼
Au7o has documented U0422 on 1 Buick model: Encore GX.