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Cadillac Cimarron 1982-1988 Door Lock Cylinder and Key Kit Guide

If your key is sticking or won't turn, it might be time to replace your Cimarron's door lock cylinders.

3 minutes to read 1982-1988 Cadillac Cimarron
Difficulty
2/5
Est. Time
1.5 hrs
DIY Doable?
✅ Yes
Shop Labor
$120-$200
Used OEM Price
$10-$25
Safe to drive — A failing door lock does not affect the vehicle's operation, but it does pose a security risk if you cannot lock your car.
Key Takeaways
  • The 'Door Lock Kit' for a Cimarron contains mechanical lock cylinders and keys, not electric actuators.
  • Stiffness can be caused by the latch mechanism inside the door, not just the lock cylinder.
  • Standard Ignition is a reputable aftermarket brand for this part.
  • No programming is needed; this is a simple mechanical replacement.
The Door Lock Kit for the 1982-1988 Cadillac Cimarron is a mechanical set that includes new lock cylinders for the doors and a matching pair of keys. This allows you to lock and unlock your doors manually from the outside. This kit's main job is to restore the function of the key mechanism when it becomes worn, damaged, or hard to operate. It is important to know that this kit does not include the electronic power door lock actuators, which are the motors inside the door that lock and unlock the doors when you press the power lock switch. Those are separate parts.

Is Your Cimarron's Door Lock Failing?

For a classic vehicle like the 1982-1988 Cadillac Cimarron, problems with door locks are common due to age and wear. The most frequent issue is a worn-out lock cylinder, the part your key goes into. Over time, the tiny pins and tumblers inside wear down, making the lock difficult to operate.

Common Failure Symptoms

  • Key Hard to Turn: You have to jiggle or force the key to get it to lock or unlock the door. This points to worn internal components.
  • Key Won't Go In or Comes Out Too Easily: The key might not insert smoothly, or it may feel loose and sloppy inside the lock.
  • Lock Doesn't Turn at All: The cylinder is seized or the wrong key has damaged the tumblers.

Don't Mistake It for Other Problems

Before buying a new lock kit, make sure the cylinder is the actual problem. On these GM J-body cars, the internal door latch mechanism can get gummed up with old grease or rust, making the lock feel very stiff to operate with the key, even if the cylinder is fine. Also, if your power locks don't work but the key does, you likely need a new door lock actuator, not a lock cylinder kit.

Choosing the Right Aftermarket Door Lock Kit

Finding new Original Equipment Manufacturer (OEM) parts from GM for a Cimarron is nearly impossible today. The good news is that high-quality aftermarket parts are readily available and affordable. These kits provide a direct-fit replacement to get your locks working like new again.

Brand Spotlight: Standard Ignition (SMP)

Standard Motor Products is a well-regarded aftermarket manufacturer. Their door lock kits, such as the DL-7, are designed to be a reliable, OE-style replacement. They are built with materials like die-cast zinc cores and brass tumblers to ensure durability and proper function. For Cimarron owners, Standard Ignition is a trusted and widely available choice.

Pro Tip: Replace as a Set

These kits come with two lock cylinders and a matching set of keys. It is recommended to replace both door locks at the same time. This ensures both locks operate smoothly with the same new key, avoiding the hassle of carrying multiple keys for your doors.

Aftermarket Door Lock Kit Cost for 1982-1988 Cadillac Cimarron

Part Type Typical Price Range
New Aftermarket Kit (Standard Ignition, etc.) $28.19 - $31.80
New OEM N/A (No longer available)
Used OEM (Junkyard) $10 - $25

(Prices are estimates and do not include labor or shipping.)

Frequently Asked Questions (FAQ)

Were there any recalls on the Cimarron door locks?

No, there were no specific recalls issued by the NHTSA for the door lock cylinders or actuators on the 1982-1988 Cadillac Cimarron.

Do I need to program the new keys or locks?

No. The 1982-1988 Cimarron uses a purely mechanical lock and key system. There are no electronic chips or programming required, making for a straightforward swap.

How do I know if I need a lock cylinder or a power lock actuator?

If the key is hard to turn in the door, the problem is likely the mechanical lock cylinder. If the key works fine but the power lock button inside the car doesn't work on one or more doors, the problem is likely the electric door lock actuator.

Can I just lubricate my old lock instead of replacing it?

You can try spraying a graphite-based lock lubricant into the keyhole. This can sometimes free up sticky tumblers. However, if the lock is heavily worn or damaged, lubrication is only a temporary fix, and replacement is the only long-term solution. Forum users also suggest cleaning and re-greasing the entire latch mechanism inside the door, as this is a common point of failure.

Technical Specifications

Kit includes two (2) door lock cylinders and two (2) matching keys. Designed for direct replacement of the original manual lock mechanism.

Wrenchy
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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.

Year Coverage
This article covers the Door Lock Kit for:
  • Cadillac Cimarron: 1982198319841985198619871988
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