1. Check the Obvious:
* Key Fob: Make absolutely sure your key fob's battery isn't dead. Try replacing it if necessary.
* Manual Release: Locate the interior release lever (usually near the driver's seat or on the cargo area side wall). Try pulling it firmly. Sometimes they get jammed or stick.
* Key: If you have a separate key for the hatch, try using it in the lock cylinder (located on the tailgate itself).
* Power Lock Switch: If your car has power locks, try cycling them on and off via the driver's side door controls. Sometimes, this can reset things.
* Exterior Lock: Double check the lock on the outside of the tailgate to ensure that it's not still engaged.
2. Addressing Potential Mechanical Issues:
* Stuck Latch: The latch mechanism itself might be jammed. Try gently working the hatch back and forth while simultaneously pulling the interior release. A little WD-40 sprayed into the latch mechanism (use sparingly, and allow time to work) might help lubricate a sticky mechanism. Be very careful not to spray directly onto any electrical components.
* Cable/Linkage Problem: The cable connecting the interior release to the latch could be broken or dislodged. This usually requires some disassembly to diagnose and fix.
* Frozen Parts: If the weather is cold, ice could be preventing proper operation. Try using a de-icer spray (carefully) on the latch and surrounding areas, allow it to penetrate and work.
3. More Involved Solutions (Requires Some Mechanical Aptitude):
* Accessing from Inside: If you have seats that fold down, try to access the rear hatch mechanism from inside the vehicle to see if you can manually release the latch. This requires some exploration and understanding of the vehicle's interior.
* Panel Removal: This is more advanced and should only be attempted if you are comfortable disassembling parts of your vehicle. You might need to remove interior panels to access the latch mechanism directly. Consult a repair manual specific to your 2003 Jeep Liberty for instructions and diagrams.
* Emergency Access (Last Resort): In some extreme cases, you may need to break a small portion of the rear hatch (preferably a less visible area) to gain access. This is a LAST resort option as it will damage your vehicle.
Important Considerations:
* Repair Manual: Obtaining a repair manual specific to your 2003 Jeep Liberty is HIGHLY recommended. This will provide diagrams and detailed instructions for accessing the hatch mechanism.
* Professional Help: If you're not comfortable attempting any of the above solutions, or if you've tried several options without success, it's best to take your Jeep to a qualified mechanic or locksmith. They have specialized tools and experience to handle this type of issue.
Remember safety first! If you're unsure about anything, it's always safer to seek professional help. Avoid forceful methods that could cause further damage to your vehicle.