GMC Yukon Ignition Lock Cylinder Guide (2009-2014)
If your key is sticking or won't turn in your 2009-2014 GMC Yukon, this guide is for you.
- A key that is hard to turn or gets stuck is the most common sign of a failing ignition lock cylinder in a 2009-2014 Yukon.
- A safety recall was issued for 2011-2012 models for a defect that could cause the engine to shut off while driving; verify this repair has been done.
- Aftermarket brands like Dorman offer DIY-friendly kits with a programming tool, avoiding a costly dealership visit for key programming.
- Replacing the cylinder is a manageable DIY task, but requires disconnecting the battery and disabling the airbag system for safety.
Is Your Yukon's Ignition Giving You Trouble?
If you're having a hard time turning the key, or the key gets stuck in your 2009-2014 GMC Yukon, the ignition lock cylinder is a likely culprit. This component wears out from the constant twisting of the key over thousands of starts. When it fails, it can range from a minor annoyance to leaving you stranded. Common symptoms include the key feeling difficult to turn, the engine not cranking, or the vehicle stalling.
Common Failure Symptoms
A failing ignition lock cylinder can cause several distinct problems. Pay attention to these signs:
- Key is Hard to Turn or Stuck: This is the most common symptom. You might have to jiggle the key to get it to turn. 🎬 Watch this guide if your key is stuck or won't turn. This can be caused by worn internal tumblers or a problem with the lock mechanism.
- Engine Won't Crank: You turn the key, the dash lights may or may not come on, but nothing happens. The cylinder isn't properly telling the ignition switch to start the truck.
- Starts and Immediately Stalls: The engine may fire up but shut off as soon as you release the key from the "start" position. This can indicate the switch isn't staying in the "run" position.
- Accessories Don't Work Correctly: A faulty ignition switch assembly can prevent accessories like the radio or power windows from working properly.
Important Safety Recall Information
General Motors issued a safety recall (NHTSA Campaign Number: 14V827000, GM Recall: 14696) for certain 2011-2012 GMC Yukon models. The defect could cause the ignition to move from the "Run" to the "Accessory" position while driving, leading to a loss of engine power, power steering, and power brakes, and could prevent airbags from deploying in a crash. Dealers were instructed to inspect and, if necessary, replace the ignition lock housing at no charge. Check with a GM dealer to see if your vehicle was affected and if the repair was completed.
Choosing the Right Aftermarket Part: Dorman
For the 2009-2014 GMC Yukon, Dorman is a widely available aftermarket brand for ignition lock cylinders. When comparing to OEM, the main difference is in the keying and programming process.
- OEM (Original Equipment Manufacturer): A part from a GM dealer can be ordered using your VIN and keyed to match your existing door locks, so you don't have to carry a separate key. However, this is often a more expensive option.
- Aftermarket (Dorman): Dorman offers a cost-effective solution that is designed for do-it-yourself installation. Their kits typically include a new lock cylinder, new transponder keys, and a simple programming tool that plugs into your vehicle's OBD2 port. This allows you to program the new keys to your Yukon without an expensive trip to the dealership. While you will have a new key for the ignition, you will still need your old key for the doors if you don't use the key fob.
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket (Dorman) | $88 - $94 |
| New OEM (GM Genuine Parts) | $105 - $140 |
| Shop Labor | $106 - $156 |
| Total Professional Replacement | $211 - $293 |
DIY Installation Tips
Replacing the ignition lock cylinder is a manageable DIY job for many owners. The process involves removing the steering column covers and using a small tool like a pick or Allen wrench to depress a release tab while the key is in the "start" position. Important: You must disconnect the battery and disable the SIR (airbag) system before starting to avoid injury or electrical damage. After installing the new cylinder, Dorman kits provide a programmer to sync the new keys with your truck's anti-theft system. The entire process 🎬 See how to use the Dorman programmer for your new keys. can take about 30-40 minutes.
🎬 Follow this step-by-step walkthrough for a complete cylinder replacement.Frequently Asked Questions
Why won't my key turn at all?
This is a classic symptom of a failed lock cylinder. The internal pins and tumblers are likely worn or jammed. Sometimes, wiggling the steering wheel while gently trying to turn the key can help, as the steering lock might be bound up. If that doesn't work, the cylinder likely needs replacement.
Do I need to take my Yukon to a dealer to program the new keys?
Not if you use an aftermarket kit from a brand like Dorman. These kits come with an on-board programming tool that plugs into the diagnostic port under your dashboard, allowing you to program the new keys yourself in about 10-20 minutes.
Will the new key work for my doors too?
No. An aftermarket ignition lock cylinder comes with new keys that will only work for the ignition. You will need to keep your original key for the door locks and glove box, or rely on your key fob for entry.
Is it safe to drive with a failing ignition lock cylinder?
It is not recommended. A failing cylinder could cause the engine to stall while driving, which is a major safety hazard as you would lose power steering and brakes. It could also leave you stranded if the key refuses to turn at all. It is best to get this part replaced as soon as symptoms appear.
Helpful Videos
Technical Specifications
OEM Part Numbers: 15794826 15919460 19120038
The replacement part is a mechanical and electronic assembly located in the steering column. Aftermarket kits typically include the lock cylinder, two new transponder keys, and an OBD2 key programming tool.
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.
- GMC Yukon: