U0422 — OBD-II trouble code

A network / communication OBD-II trouble code. Below are the vehicles and failure patterns where owners report it, drawn from NHTSA complaints.

In ProblemsByVin's analysis of the NHTSA owner-complaint record, owners cite U0422 across 5 vehicle failure patterns. Diagnostic codes in complaints are reported by owners and are unverified — they point to where this code shows up, not a confirmed diagnosis. Open a page below for the full pattern (symptoms, mileage, repair costs owners cite).

Vehicles where owners report U0422 5 patterns

2022 GMC Sierra

steering — Power Steering Loss / Control Module Failure

2020 GMC Acadia

electrical — Door Lock and Liftgate Electrical Failure

2016 Chevrolet Malibu

powertrain — Engine Power Reduced / Reduced Engine Power Warning

2014 Chevrolet Silverado

electrical — Complete electrical shutdown and loss of power while driving

2014 Chevrolet Silverado

suspension — Front differential noise

Codes are pulled from what owners wrote in their NHTSA filings — they're allegations, not a shop diagnosis. Always confirm with a live scan. Browse all diagnostic codes →