Chrysler PT Cruiser Ignition Lock Cylinder Guide (2001-2010)
Having trouble with your PT Cruiser's key? This guide covers common ignition lock cylinder problems and how to choose the right replacement part.
- Ignition lock cylinder failure is common, with symptoms like a stuck key or a key that's hard to turn.
- Replacement is very easy for DIYers and often doesn't require removing steering column covers.
- To avoid programming issues with chipped keys, have the new cylinder re-pinned to your original key or buy a Dorman re-coding kit.
- A faulty shifter interlock can also cause the key to get stuck; check this before replacing the cylinder.
Is it the Ignition Lock Cylinder or Something Else?
When your PT Cruiser has starting problems, it's easy to blame the battery or starter, but the ignition system itself has several parts that can fail. It's important to know the difference between the ignition lock cylinder (the mechanical part your key goes into), the ignition switch (the electrical part that sends power), and the ignition actuator pin that connects them. A broken actuator pin is a very common failure on these vehicles and can mimic a bad lock cylinder. If the key turns but nothing happens or it feels mushy, the actuator pin is a likely suspect. 🎬 See how to repair a broken ignition switch actuator pin. If the key is physically hard to turn, gets stuck, or won't go in at all, the lock cylinder is the more probable cause.
Common Symptoms of a Failing PT Cruiser Ignition Lock Cylinder
- Key is hard to turn or won't turn: This is the most common sign. Worn-out tumblers inside the cylinder can prevent the key from aligning properly. Sometimes, wiggling the steering wheel can help if the steering lock is bound.
- Key gets stuck in the ignition: The key may get stuck in the ACC, ON, or OFF position. This can sometimes be related to the automatic transmission shifter interlock, a common issue where the car doesn't fully recognize it's in Park.
- Key feels loose or sloppy: If the key wiggles excessively when in the cylinder, it's a sign of internal wear.
- Car won't start: While many things can cause a no-start, a failed lock cylinder can prevent the ignition switch from being activated.
Recall Information
Chrysler issued a recall (NHTSA 14V-438) for some 2008 PT Cruiser models due to a faulty ignition switch that could move out of the 'ON' position while driving, causing the engine to stall. While this recall was for the electrical switch, the symptoms are relevant and highlight the importance of a properly functioning ignition system.
Choosing the Right Aftermarket Ignition Lock Cylinder
When replacing your ignition lock cylinder, you have a choice between OEM (from the dealer) and aftermarket parts. For a vehicle like the PT Cruiser, aftermarket parts offer excellent value and are widely available. Here's a look at the brands you'll find:
- Dorman: A very popular aftermarket brand that offers several options for the PT Cruiser. They are known for their "OE FIX" solutions, which sometimes include tools to help you code the new cylinder to your existing keys, saving you a trip to the locksmith. Dorman parts are generally considered a reliable and affordable solution.
- Standard Ignition (Standard Motor Products/SMP): A well-respected brand in the aftermarket world, often considered a step up in quality, sometimes rivaling OEM parts. They are a solid choice if you're looking for long-term reliability.
- Mopar: This is the official OEM parts brand for Chrysler. You can expect a perfect fit and original quality, but at a significantly higher price. For an older vehicle, a high-quality aftermarket part is often a more practical choice.
- Skyward / Replacement / Other Value Brands: These brands offer the most budget-friendly options. They can be a good choice if the price is your main concern, but be aware that quality can sometimes be less consistent than with more established brands like Dorman or Standard Ignition.
A Note on Keys and Programming
Most PT Cruisers from 2001-2010 use a gray key, which is a Sentry Key with a transponder chip inside. If you replace the lock cylinder and use the new keys that come with it, the car will not start unless the new keys are programmed to the vehicle's computer. This requires a trip to a dealer or a locksmith with the proper tools. To avoid this, you can have a locksmith re-pin the new lock cylinder to match your original key, or purchase a kit (like some from Dorman) that allows you to do it yourself.
🎬 Learn how to code a new cylinder to your original keys.Cost of Replacing the Ignition Lock Cylinder
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Part | $26 - $140 |
| New OEM (Mopar) Part | $150 - $250+ |
| Shop Labor | $82 - $120 |
| Total Professional Replacement | $197 - $275 |
Frequently Asked Questions
Can I replace the PT Cruiser ignition lock cylinder myself?
Yes, this is a very DIY-friendly job on the PT Cruiser. The lock cylinder can be removed without taking the steering column covers off. You simply turn the key to the 'ON' or 'RUN' position, insert a small screwdriver or punch into a release hole on the bottom of the ignition housing, and the cylinder will pull straight out. The entire process can take less than 30 minutes.
🎬 Watch this quick walkthrough on removing and replacing the cylinder.Do I need to disconnect the battery to change the lock cylinder?
It is always a good safety practice to disconnect the negative battery cable before working on any part of your car's electrical system, including the ignition.
My key is stuck. What should I do?
First, make sure the vehicle is in Park. Sometimes the shifter interlock cable gets sticky and doesn't tell the ignition that it's safe to release the key. Try wiggling the shifter or moving it through the gears and back to Park firmly. Also, try turning the steering wheel slightly to the left or right, as pressure on the steering lock can bind the key.
Will I need a new key after replacing the cylinder?
The new lock cylinder will come with a new set of keys. If your PT Cruiser has a chipped key (gray head), you must either have the new keys programmed to your car or have the new lock cylinder re-pinned to work with your old key. If you just install the new cylinder with its new keys, the engine will crank but will not start and run because of the anti-theft system.
Helpful Videos
Technical Specifications
OEM Part Numbers: 924-703 924-796 924-721 924-709
The PT Cruiser uses a mechanical lock cylinder that actuates an electrical ignition switch. Models from 2001-2010 typically use a gray-headed Sentry Key with a transponder chip for the immobilizer system. The cylinder is removed by turning the key to the 'ON' position and depressing a release pin through an access hole under the steering column shroud.
We Have This Part in Stock
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.
- Chrysler PT Cruiser: