NHTSA Complaint #11687590 — 2023 VOLKSWAGEN TIGUAN

I own a 2023 Volkswagen Tiguan (EA888 2.0L). The Check Engine Light has repeatedly illuminated, and multiple scans show recurring EVAP/emissions and network communication faults: P04F0 (EVAP purge line A performance) and P0451 (fuel tank pressure sensor range/performance), along with U1111 00 (“function limitation due to missing message”) and U1123 00 (“databus error value received”). While drivability may seem normal at times, these faults persist and clear/recur, raising concerns about fuel-vapor containment/emissions compliance and potential intermittent loss or limitation of vehicle electronic systems/driver-assistance functions due to CAN-bus communication errors. I’m reporting this because the condition is ongoing, produces a continual CEL, and may present safety and reliability risks if not addressed by the manufacturer.