Buick Terraza P0730: Meaning, Causes + Diagnosis
P0730 is a standard OBD2 trouble code. It indicates that your Buick Terraza’s PCM has detected an incorrect gear ratio. While this code can appear if you changed your Terraza’s transmission or rear end gearing without re-flashing the computer, it almost always has nothing to do with an incorrect gear ratio. An internal transmission problem … Read more