1998-2002 Oldsmobile Intrigue Ignition Lock Cylinder and Starting Issues
If your Intrigue's key won't turn or the security light is flashing, your ignition lock cylinder is the most likely cause.
- A flashing 'SECURITY' light or a key that won't turn are the two biggest signs of a failed ignition lock cylinder.
- You MUST perform the 30-minute Passlock Relearn Procedure after installation, or the car will not start.
- This issue is not related to the famous GM ignition switch recall, which addressed a different part.
- Most aftermarket kits come with new keys, meaning you will have a separate key for your ignition and doors.
Is Your Intrigue's Ignition Cylinder Failing?
Problems with the ignition lock cylinder are extremely common on the 1998-2002 Oldsmobile Intrigue. These issues typically fall into two categories: a mechanical failure where the key physically won't turn, or an electronic failure of the anti-theft system. Both point to a bad ignition lock cylinder assembly.
Top 3 Failure Symptoms
- Key is Hard to Turn or Won't Turn: The most common mechanical failure is worn-out tumblers inside the cylinder. You may find yourself having to jiggle the key or steering wheel to get it to turn. Eventually, it may stop turning altogether, leaving you stranded. 🎬 Watch: Quick hacks to try if your key won't turn
- Flashing 'SECURITY' Light: A flashing security light on your dashboard is the classic sign of a Passlock II anti-theft system fault. The car's computer thinks it is being stolen and activates the security measures. 🎬 See what a flashing security light looks like during failure
- Engine Starts and Immediately Stalls: If the Passlock system is triggered, it will often allow the engine to start for a second and then shut off the fuel injectors, causing it to stall. In other cases, the engine may not crank at all.
Ignition Lock Cylinder vs. Ignition Switch
It's important to know the difference between the lock cylinder and the ignition switch. The lock cylinder is the mechanical part your key goes into. The ignition switch is the electronic component behind it that sends power to the rest of the car. While a bad ignition switch was part of a major GM recall, the symptoms above are most often caused by the lock cylinder and its integrated Passlock sensor.
Choosing the Right Aftermarket Ignition Lock Cylinder
For a vehicle of this age, a new aftermarket part offers the best value. The quality of aftermarket brands for this specific part is generally considered reliable for resolving the common failure points.
Brand Quality Tiers
- ACDelco (OE-Equivalent): As GM's own parts brand, ACDelco offers a direct, factory-quality replacement. Choose this if you prefer to stick with original equipment standards for fit and durability. Some ACDelco kits may require you to have a locksmith transfer your old key's tumbler pattern to the new cylinder.
- Dorman (Upgraded Aftermarket): Dorman is a well-regarded aftermarket brand that often re-engineers parts to fix common flaws. Their kits for the Intrigue typically come with two new keys, making the job easier as you won't need a locksmith. This means you will have a separate key for your ignition and doors.
- Skyward / Replacement (Value): These brands provide a cost-effective solution that meets original specifications. They are a good choice for budget-conscious repairs and will resolve the common failure symptoms. Like Dorman, these kits usually include new keys.
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket Part | $37.99 - $188.51 |
| Shop Labor | $100 - $150 |
| Total Estimated Cost | $138 - $339 |
Pro-Tip: The Passlock Relearn Procedure
After installing a new ignition lock cylinder, your car will not start until you perform the Passlock Relearn Procedure. This syncs the new cylinder with your car's computer. It takes 30 minutes and does not require any special tools. See the FAQ below for the step-by-step instructions.
Frequently Asked Questions (FAQ)
How do I perform the 30-minute Passlock Relearn Procedure?
This procedure is essential after replacing the lock cylinder.
1. Insert the new key and turn it to the 'ON' position (do not start the engine). The 'SECURITY' light will be flashing or on solid.
2. Wait for approximately 10 minutes, or until the 'SECURITY' light turns off.
3. Turn the key to the 'OFF' position and wait for 5-10 seconds.
4. Repeat steps 1-3 two more times, for a total of three 10-minute cycles.
5. After the third cycle, the relearn is complete. Turn the key off, then start the engine. It should now run normally.
Is this problem related to the big GM ignition switch recall?
No, but the issues are often confused. The major recall (NHTSA Campaign 14V047) was for the electronic ignition switch, which could shut the engine off if the key ring was too heavy. The lock cylinder is the mechanical part the key fits into. However, the symptoms of a flashing security light and a no-start condition are almost always related to the lock cylinder and its Passlock sensor, not the recalled switch.
Can I just replace the key?
No, a new key will not solve this problem. The 1998-2002 Intrigue uses the Passlock II system, which does not use a chip in the key. The security sensor is in the lock cylinder housing itself. If the key is worn and causing the mechanical problem, a new key might help temporarily, but if the security light is on, the cylinder assembly is the issue.
Is this a difficult DIY job?
For a DIYer with basic tools, this is a manageable job. The process involves removing the plastic shrouds around the steering column, turning the key to the 'ON' position, pressing a small release tab on the cylinder, and sliding it out. The most time-consuming part is the mandatory 30-minute relearn procedure afterward.
Helpful Videos
Technical Specifications
OEM Part Numbers: 15841209 D1493F
This vehicle is equipped with the GM Passlock II anti-theft system. The security component is integrated with the ignition lock cylinder housing, not the key itself. Replacement requires a 30-minute vehicle relearn procedure.
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.
- Oldsmobile Intrigue:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Intrigue's Ignition Cylinder Failing?
- Top 3 Failure Symptoms
- Ignition Lock Cylinder vs. Ignition Switch
- Choosing the Right Aftermarket Ignition Lock Cylinder
- Brand Quality Tiers
- Pro-Tip: The Passlock Relearn Procedure
- Frequently Asked Questions (FAQ)
- 🎟️ Get 5% Off