When a sensor is replaced in one or more tires, one or more wheels are replaced or tires are rotated in a GMC Acadia, a manual (stationary) or OBD TPMS relearn is recommended to transfer new and/or existing TPMS sensor ID’s to the vehicle’s ECU. An indicator light (low-line TPMS system) or each tire pressure will show on the dash (high-line TPMS system).
If one or more tires indicate low tire pressure, the TPMS sensors will transfer the information to the vehicle’s ECU.
The GMC Acadia is manufactured with a direct TPMS system, which means TPMS sensors are installed in the wheel. After the TREAD Act was mandated in 2007, all vehicles manufactured in the United States beginning in 2008, must be installed with direct or indirect TPMS systems.