FYI GM put out a fix for accidentally hitting the trunk release button on the key fob.
Owners of some 2014 Impala models and 2013 ATS models (applies to ATS models built prior to April 8, 2013 only) may experience the trunk opening without having requested the trunk to open.
The unwanted trunk opening may be due to the trunk release button on the Remote Keyless Entry transmitter (key fob) requiring a quick button press (only 0.2 seconds is required) to open the trunk.
As a result, the trunk may be opening when the key fob button is inadvertently pressed while in a pocket or purse.
If this condition is present and the owner would like to increase the amount of time required when pressing the key fob trunk elease button, contact the Techline Customer Support Center (TCSC: 1-800-828-6860, English, or 1-800-503-3222, French) for a VCI number to install a new BCM calibration.
The new calibration will extend the required minimum time for a trunk release button press on the key fob to one second.
TIP: Once programmed, inform the customer about the new operation of the key fob.
It will be necessary to press and hold the trunk release button for one second before the trunk will open.