What is the Trunk Lock Cylinder all about?
Every passenger car or sport utility vehicle has a trunk or hatchback. These trunks or hatches are equipped with a keyed lock to prevent the theft of its contents and to secure access to the interior of the vehicle. Opening and closing the trunk or hatchback can sometimes be done by pressing a button inside the vehicle, although all vehicles have a key cylinder mounted on the trunk or hatch for manual operation. When the proper key is inserted into the trunk lock cylinder, turning the key a quarter turn clockwise will release the lock and the trunk or hatch will open. A spring on the trunk lock cylinder will return the key to its closed position when it is released. The latch on the trunk can be closed with the key removed from the cylinder or turned back to the locked position.
Keep in mind:
- The trunk lock cylinder is exposed to environmental elements. Keeping it clean and lubricated is key to its long-term operation.
- Older vehicles can have a separate key for the trunk lock cylinder and door locks. If your key won’t go into the cylinder, check to make sure the key you are using is the correct key.
- A valet key will not open a trunk lock cylinder. If the key will not operate in the trunk lock, check the key to make sure it isn’t a valet key; it will be marked on the key’s head if it is a valet key.
How it's done:
The trunk lock cylinder is verified to be broken. The trunk inside trim panel is removed and the latch is removed for access to the lock cylinder.
The lock cylinder retaining clip is removed and the broken lock cylinder is removed from the trunk.
The new trunk lock cylinder is installed into the trunk hole and secured in place with the clip. The latch is reinstalled and secured.
The trunk lock cylinder is tested for proper operation and the inside trim panels are reinstalled.
The trunk lid is opened and closed to check the latch and lock cylinder operation.
Your trunk lock cylinder should be replaced if the key no longer goes into the cylinder, works to turn the cylinder or if it doesn’t return to the locked position easily. Use lock de-icer in the winter to prevent the lock from freezing up.
What common symptoms indicate you may need to replace the Trunk Lock Cylinder?
- Key will not enter the lock cylinder
- Once inserted into the lock cylinder, the key will not turn
- Key is stiff to turn in the cylinder and doesn’t spring back to the closed position
How important is this service?
The trunk lock cylinder protects the contents of your trunk or hatch, and serves as an emergency entry or exit point for some vehicles. If the lock cylinder seizes, you may be unable to access your belongings or gain entry into your vehicle in an emergency. Replace the trunk lock cylinder to prevent this inconvenience.