GMC Acadia persistent shift to brake and parking light indicator issue on GMC Acadia

Some GMC Acadia owners report experiencing persistent issues with the shift to brake and parking light indicator, often linked to several common causes. These include problems with the shift interlock system, which prevents shifting out of park unless the brake pedal is pressed. Additionally, some owners find that the parking brake light may indicate a need for adjustment or servicing, necessitating prompt inspection by a certified mechanic. Others report messages related to the parking brake sensor or calibration, particularly when parked on uneven surfaces, suggesting a potential issue with the sensor itself. In cases where the light or message remains on, owners are advised to release the electronic parking brake (EPB) by holding the switch until the indicator turns off; if it persists, a visit to the dealer is recommended. Furthermore, faulty transmission sensors have been reported to trigger the "Shift to Park" message, prompting owners to check the neutral safety switch and PNP sensor for any signs of damage or loose connections. Addressing these issues promptly can help resolve the indicator problems effectively.