The power window motor commonly fails in the front and rear doors. This may require replacement of the complete window regulator assembly which will include the window motor.
Resources for the Repair and Maintenance of your 2009 Jeep Liberty
2009 Jeep Liberty
2009 Jeep Liberty Problems
An engine misfire at idle (rough idle), accompanied by illumination or flashing of the Check Engine Light, could indicate a problem with one or more of the intake valves. Revised intake valves & valve locks are available to address this concern.
Leaks at the front and/or rear differential pinion seal and from the transfer case are common. Low fluid level in the differential or transfer case can result in bearing failure. Damaged bearings commonly cause a whine or growl type noise.
The sky slider sunroof may not open. A software upgrade for the control module is available which should correct this concern.
If the power door locks are buzzing or are intermittently noisy, a new door latch assembly may solve this. The door lock actuators are integrated into the latch assemblies.
2009 Jeep Liberty Questions and Answers
Absolutely no heat going to the driver side floor but all of the other vents work fine. They're almost too hot.