Buicks May Have Screwy Speed Sensor
This bulletin applies to 2019 Buick Enclave and Envision vehicles equipped with a GF9 transmissions.
Intermittent input speed sensor and/or intermediate speed sensor electrical DTCs may be found including P0717, P07BF, P07C0, P176C and P176D. The possible cause is an open in the input speed sensor.
If normal service diagnostics does not lead to a resolution, replace the input speed sensor.