O2 Sensor Circuit Malfunction (Bank 1, Sensor 1)

What does this mean?

Code P0130 indicates a malfunction in the upstream oxygen sensor circuit on Bank 1. This sensor monitors exhaust gases before the catalytic converter.

Disclaimer: This diagnostic code is part of the standard OBD2 system and can apply to Buick Encore models manufactured from 1996 to 2026. However, please note that the presence of this specific code depends on your vehicle's exact engine configuration, options, and production year.