Chevrolet Impala Ignition Switch Guide: 2007-2014
Experiencing starting problems or strange electrical issues with your Impala? The ignition switch could be the reason.
- The 2007-2014 Impala was part of a major GM recall (14299) for unintended key rotation, which has symptoms similar to a bad switch.
- Stalling while driving is a critical safety symptom pointing to a failing ignition switch.
- The electrical ignition switch is a separate part from the mechanical lock cylinder; diagnose which one is faulty before buying parts.
- Replacing only the electrical switch is a feasible DIY job and does not require key reprogramming.
Is Your Impala's Ignition Switch Failing?
If you're having trouble with your 2007-2014 Chevrolet Impala, the ignition switch is a common part to check. Problems with this switch can seem like a bad battery or starter, but the symptoms are often slightly different. Knowing the signs can save you time and money on diagnostics.
Common Symptoms of a Bad Ignition Switch
- Car Won't Start: You turn the key and nothing happens, or you only hear a single click. The dashboard lights might not even come on. 🎬 Watch a diagnostic video on troubleshooting Impala no-start electrical codes.
- Starts and Stalls: The engine fires up but immediately dies once you let go of the key. This happens when the switch fails to keep power flowing to the ignition system in the 'ON' position.
- Stalling While Driving: This is a serious safety issue. A worn switch can lose connection over bumps or during turns, cutting power to the engine, power steering, and power brakes without warning.
- Electrical Glitches: Your radio, climate control, or dashboard lights may flicker or not work at all. Sometimes, accessories only work when the key is wiggled or held in a specific position.
- Key is Hard to Turn: If the key feels stuck or is difficult to turn, it could be an issue with the mechanical lock cylinder or the electrical switch behind it.
A Note on GM Ignition Recalls
General Motors issued massive recalls for ignition-related problems. The 2006-2014 Chevrolet Impala was included in recall 14299. This specific recall addressed the key design and the risk of the ignition switch moving out of the "run" position if the key had extra weight on it, which could shut off the engine and disable the airbags. The fix involved dealers adding an insert to the key. While this recall was not for a faulty switch itself, the symptoms are very similar to a failing switch. It is critical to check if your vehicle has had this recall service performed.
Choosing an Aftermarket Ignition Switch
When replacing the ignition switch, you have several options. Since the OEM part was involved in a major recall campaign, many owners look to the aftermarket for replacements. Here's a breakdown of common brands:
- ACDelco: Often considered the original equipment (OE) supplier for GM. Their parts are typically a direct replacement for what came on your car from the factory. There are different tiers, with "ACDelco Gold" often being the premium aftermarket line and "ACDelco Silver" being a more budget-friendly choice. For a critical part like this, ACDelco is generally a trusted choice.
- Standard Ignition (SMP): A long-standing and respected aftermarket manufacturer. They produce quality electrical components and are often considered a reliable alternative to OE parts. Their switches are built to meet or exceed original specifications.
- Dorman: Known for making a huge variety of aftermarket parts. Dorman can be a good value, and they sometimes engineer their parts to fix known flaws in the original design. However, quality can sometimes be inconsistent, so it's wise to check reviews for the specific part number.
- Rostra Powertrain: Rostra is another established brand in the automotive electronics field, though perhaps less common for ignition switches in retail stores compared to the others. Their products are generally considered to be of good quality.
Pro Tip: The ignition switch is the electrical part. The ignition lock cylinder is the mechanical part your key goes into. They are separate components on this Impala. If your key is physically hard to turn, the lock cylinder might be the problem. If you have electrical symptoms, the switch is the more likely culprit. Often, it's a good idea to replace both at the same time if you're already doing the job.
🎬 See how to replace the mechanical ignition lock cylinder.| Part Type | Estimated Price Range |
|---|---|
| New OEM | $56 - $97 |
| New Aftermarket | $31 - $58 |
| Shop Labor | $104 - $153 |
Frequently Asked Questions
Is replacing the ignition switch a DIY job?
Yes, for a moderately skilled DIYer. It involves removing the steering column covers and a few small bolts. The switch itself is usually held on by a couple of screws. You'll need basic tools like a screwdriver and socket set. The most difficult part is often working in the tight space under the dashboard.
🎬 Watch this step-by-step guide to replacing the ignition switch yourself.Do I need to program the new ignition switch?
No. The ignition switch itself does not require programming. However, your Impala uses a PK3 chipped key for the anti-theft system (Passlock). If you replace the ignition lock cylinder and use new keys, those keys will need to be programmed to the vehicle. If you are only replacing the electrical switch and reusing your old lock cylinder and keys, no programming is needed.
Will a new ignition switch fix my car stalling?
It might. Stalling is a primary symptom of a bad ignition switch, especially if it happens when going over bumps or if the dashboard lights flicker at the same time. However, other issues like a failing fuel pump or crankshaft position sensor can also cause stalling, so proper diagnosis is important.
What's the difference between the ignition switch and the lock cylinder?
The lock cylinder is the mechanical tumbler assembly that your key slides into. The ignition switch is the electronic part that sits behind or is connected to the lock cylinder. The cylinder tells the switch which position you've selected (Off, ACC, On, Start), and the switch then routes electrical power accordingly.
Helpful Videos
Technical Specifications
OEM Part Numbers: 15822350 25832354 D1491C
Located on the steering column, the ignition switch is an electrical component separate from the ignition lock cylinder. It uses a multi-pin connector to interface with the vehicle's wiring harness.
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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