Chrysler 300 Trunk Lock Actuator: A Guide for 2005-2018 Models
If your Chrysler 300 trunk won't open with the key fob or interior button, the lock actuator is the likely culprit.
- Always check the fuse and the wiring harness near the trunk hinge before buying a new part, as these are common failure points.
- Replacing the trunk lock actuator is a simple, fast DIY job that requires only basic tools.
- An aftermarket actuator is a cost-effective and reliable alternative to the more expensive OEM part for this specific repair.
- If the trunk is stuck shut, you must use the emergency release handle inside the trunk, accessible by folding down the rear seats.
Is Your Trunk Lock Actuator Failing?
A failing trunk lock actuator on a 2005-2018 Chrysler 300 has very clear symptoms. The most common issue is that the electronic releases stop working. You might press the button on your key fob or the one inside the car and nothing happens. In some cases, you may hear a faint click or buzzing sound from the trunk area, which means the actuator is receiving power but the internal motor or gears are too weak to operate the latch. Occasionally, the actuator might fail intermittently, working one day but not the next, or even cause the trunk to open by itself before it fails completely.
Check This Before You Buy
Before spending money on a new actuator, perform these simple checks, as the problem may lie elsewhere:
- Check the Fuse: A blown fuse can disable the trunk release system. The fuse for the trunk is typically located in the rear fuse box, which is in the trunk next to the battery. Check your owner's manual for the exact fuse number and location.
- Inspect the Wiring Harness: A very common failure point on the Chrysler 300 is the wiring that runs from the car's body to the trunk lid. Years of opening and closing the trunk can cause these wires to break. Peel back the protective rubber boot near the trunk hinge and inspect the wires for any visible breaks or damage. A broken wire here is a frequent cause of an inoperative trunk latch. 🎬 See how to find and repair broken trunk lid wiring.
- Valet Switch: Some vehicles have a valet lockout switch, often in the glove box, that disables the trunk release. Ensure this switch has not been accidentally activated.
Choosing an Aftermarket Trunk Lock Actuator
For a part like a trunk lock actuator, which consists of a simple motor and plastic gears, an aftermarket replacement is a practical and budget-friendly choice. The original Mopar part can be significantly more expensive, yet it can fail from the same wear and tear. Aftermarket brands like Replacement offer a direct-fit part that functions just like the original at a much lower cost. Since the installation is straightforward, choosing a reliable aftermarket part saves you money on both the component and potentially expensive dealership labor.
Installation Details
Replacing the trunk lock actuator on a 2005-2018 Chrysler 300 is a job most owners can do themselves in under 30 minutes with basic tools.
- Access the Actuator: Open the trunk and remove the inner liner on the trunk lid. This is held in place by several plastic push-clips that can be removed with a trim tool or a flathead screwdriver.
- Unbolt the Latch: The actuator is part of the latch assembly. It is held on by two 10mm bolts. One of these bolts also secures a ground wire, so make note of its position.
- Disconnect and Replace: Unplug the single electrical connector from the actuator. The entire latch assembly can then be removed. Install the new actuator by following these steps in reverse. 🎬 Watch this step-by-step guide to replacing your trunk latch assembly.
Pro Tip: After installing the new actuator but before reinstalling the trunk liner, close the trunk gently and test all electronic release buttons (key fob, interior button) to ensure it is working correctly. This saves you the trouble of removing the liner again if there's an issue.
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket Actuator | $30 - $85 |
| New OEM (Mopar) Actuator | $150 - $260 |
| Shop Labor | $95 - $120 |
Frequently Asked Questions
Is it hard to replace the Chrysler 300 trunk lock actuator myself?
No, it is considered a very easy repair. It only requires removing the trunk lid liner and two bolts. Many owners can complete the job in 15-30 minutes using only a 10mm socket and a trim removal tool.
My trunk is stuck closed. How do I open it to replace the actuator?
You will need to access the emergency trunk release handle from inside the car. Fold down your rear seats and crawl into the trunk. You will find a glow-in-the-dark handle attached to the latch mechanism; pulling this will manually open the trunk.
Could the problem just be a fuse?
Yes, it's possible. Before replacing the actuator, always check the fuse for the trunk release system. It is located in the fuse box in the trunk, near the battery on the passenger side. A video guide suggests checking fuse number nine in that fuse box for second-generation models.
🎬 Watch: Troubleshooting why your 2014-2018 trunk won't open or close.Is there a recall for the trunk lock actuator on the Chrysler 300?
No, there are no active recalls or Technical Service Bulletins (TSBs) from Chrysler or the NHTSA specifically for the trunk lock actuator on 2005-2018 models. However, broken wires in the trunk lid harness are a widely known issue that produces the same symptoms.
Helpful Videos
Technical Specifications
Fits 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Chrysler 300. Mounts in the trunk lid with two 10mm bolts and one electrical connector.
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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