Here's why:
* 2WD: In 2-wheel drive, the light should be OFF. It's only illuminated when 4WD is selected (either in 4 High or 4 Low).
* 4WD: In 4-wheel drive (either high or low range), the light should be ON.
The fact that your light is on in 2WD suggests a malfunction in the 4WD system's indicator circuit, potentially a faulty switch, wiring issue, or even a problem within the transfer case itself. Driving in 4WD when the light is off may result in drivetrain damage as the system likely thinks it's in 2WD when it's not.
What you should do:
* Do not attempt to diagnose this yourself. Improperly diagnosing or attempting repairs to a 4WD system can lead to serious damage and injury.
* Take your Jeep Liberty to a qualified mechanic or Jeep dealership. They have the diagnostic tools and expertise to pinpoint the exact cause of the problem. Trying to guess and fix this on your own is risky.
* Avoid driving in 4WD until the issue is resolved. Drive only in 2WD.
The problem could be relatively minor (a loose connection), or more serious (a malfunctioning component). A professional diagnosis is crucial to determine the extent of the repair needed.
