Keeps saying system off to save battery?

The message "System off to save battery" in a 2015 Ford Edge typically appears when the vehicle's battery voltage is low or when the vehicle's electrical system is experiencing an issue that could drain the battery. When the system detects that the battery voltage is too low, it may shut down non-essential systems to preserve power and prevent the battery from draining completely.

There are several potential reasons why the "System off to save battery" message might appear:

Weak or Failing Battery: The most common cause is a weak or failing battery. If the battery is old, damaged, or not holding a charge properly, it may not provide enough power for all the vehicle's systems.

Electrical System Issues: There could be a problem with the vehicle's electrical system, such as a faulty alternator that is not charging the battery adequately.

Parasitic Draw: Sometimes, certain electrical components may continue drawing power from the battery even when the vehicle is turned off, leading to a parasitic draw and draining the battery over time.

Extreme Weather Conditions: Very cold or very hot weather can put additional strain on the battery and electrical system, leading to the message.

To address this issue, you can take the following steps:

Check the Battery: Have the battery tested to determine its health and charging capacity. If the battery is weak or faulty, consider replacing it with a new one.

Inspect the Charging System: Have the vehicle's charging system, including the alternator, checked to ensure it is functioning correctly and charging the battery properly.

Check for Parasitic Draw: If the battery is draining when the vehicle is not in use, have a mechanic perform a parasitic draw test to identify any components that might be drawing excessive power.

Monitor Usage: During extreme weather conditions or when you notice the message appearing frequently, try to minimize the use of electrical accessories (such as air conditioning, radio, etc.) To reduce the strain on the battery.