1982-1995 Chevrolet Cavalier Trunk Lock and Cylinder Guide
Having trouble with your Cavalier's trunk lock? Here’s what you need to know to get it working again.
- Before buying a new lock, lubricate the latch mechanism and check the connecting cable, as these are common points of failure.
- Replacing the trunk lock cylinder is a simple, DIY-friendly job that requires basic hand tools and less than an hour.
- Aftermarket brands like Standard Ignition offer reliable, high-quality replacements, while 'Replacement' branded parts provide a functional budget option.
- New aftermarket locks come with their own keys, which will not match your car's ignition key.
Is Your Trunk Lock Failing? Common Symptoms
For first-generation (1982-1987) and second-generation (1988-1995) Cavaliers, the trunk lock is a straightforward mechanical part. After decades of use, failure is common. Here are the signs that your trunk lock is wearing out:
- Key is Hard to Turn or Won't Turn: The most common issue. The tumblers inside the lock cylinder can wear down or seize from dirt and rust.
- Key Feels Loose in the Lock: If the key wiggles excessively, the internal parts of the lock cylinder are likely worn out.
- Trunk Won't Open with the Key: You can turn the key, but nothing happens. This can mean the connection between the lock cylinder and the latch is broken.
- Trunk Won't Latch Closed: Sometimes, a problem with the lock or latch mechanism can prevent the trunk from staying shut.
Check the Latch and Cable First
Before you replace the lock cylinder, check related parts. Often, the problem isn't the lock itself. A stuck or dirty latch mechanism can prevent the lock from working. Also, the cable connecting the lock to the latch can break or detach. For 1995 models, a technical service bulletin (TSB #83-15-22) noted that a plastic tab on the cable assembly could break, making the trunk difficult to unlock with the key. Try lubricating the latch mechanism with a spray lubricant first.
Choosing the Right Aftermarket Trunk Lock
Original GM trunk locks for a car this age are often discontinued and hard to find. Aftermarket parts are your most reliable and affordable option. Here’s a look at the brands available:
Brand Tiers
- Standard Ignition (Standard Motor Products): This is a well-regarded brand in the auto repair industry, known for making parts that meet or exceed original equipment (OE) specifications. Technicians often trust them for durability and proper fit. If you want a high-quality replacement that is built to last, Standard Ignition is a solid choice.
- Replacement: This brand represents a value-oriented choice. It's a budget-friendly option designed to provide a functional, direct-fit replacement without the higher cost of premium brands. For a vehicle like the '82-'95 Cavalier, where cost is often a major factor, this brand gets the job done.
A Note on Keys
New aftermarket trunk lock cylinders almost always come with a new set of keys. This means your new trunk key will not match your ignition or door keys. Keep the new keys on your keychain in a safe place.
Cost of a New Trunk Lock for 1982-1995 Cavalier
The cost to replace your trunk lock can vary. The part itself is inexpensive, and if you do the work yourself, it's a very affordable repair.
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket Lock | $14.75 - $59.33 |
| Used OEM Lock (from a salvage yard) | $15 - $40 |
| Shop Labor | $60 - $120 |
Frequently Asked Questions
Is it hard to replace a Cavalier trunk lock?
No, this is a great DIY job for beginners. It usually involves removing an interior trim panel, releasing a small clip that holds the lock cylinder in place, and disconnecting the rod that attaches to the latch. The entire process typically takes less than an hour with basic hand tools.
Do I need any special tools?
You will likely only need a screwdriver and a set of pliers or a trim removal tool to access the lock. No special tools are required for this job.
My trunk is stuck shut. How can I open it to replace the lock?
If your Cavalier has a fold-down rear seat, you may be able to crawl into the trunk to access the emergency release or manually operate the latch mechanism. On some models, removing the license plate may expose screws for the latch striker, which can be removed to open the trunk.
Will the new lock fix my remote trunk release?
Not necessarily. The lock cylinder is operated by the key. The remote release uses a separate cable or electronic actuator. If your key doesn't work, replace the lock cylinder. If the remote release doesn't work but the key does, you likely need to inspect the release cable or actuator.
Technical Specifications
OEM Part Numbers: 16627973 25664020 16632015 16636561 22144363 3635350
Fits 1982-1995 Chevrolet Cavalier models (Sedan, Coupe, Wagon). Kit typically includes one lock cylinder, a retaining clip, and two keys.
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.
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