How to Reset the Tire Pressure Light (TPMS) on a GMC Acadia Limited

1. Set the parking brake and turn the ignition to ON/RUN with the engine off.
2. Press the RKE transmitter's Q and K buttons together for about five seconds until the horn sounds twice and TIRE LEARNING ACTIVE shows.
3. Hold the relearn tool against the driver side front tire sidewall near the valve stem and press its button until the horn chirps.
4. Repeat at the passenger side front, then passenger side rear, then driver side rear tire.
5. After the horn sounds twice at the last tire, turn the ignition to LOCK/OFF.
6. Set all four tires to the pressure on the Tire and Loading Information label and replace the valve caps.

• Sensor matching is needed after rotating tires or replacing TPMS sensors, or swapping a spare for a road tire.
• You have two minutes for the first tire and five minutes overall, or the process stops and must be restarted.
• A TPMS relearn tool is required; buy it from your dealer or GM Tools.

Source: 2017 GMC Acadia Limited owner's manual, PDF pages 254, 255. Steps are summarized in our own words (AI-assisted, checked against the cited pages 2026-10-18). Other model years can differ; your manual has the final word.