14/12/2018
A faulty car ignition can bring your daily routine to a screeching halt, leaving you stranded and frustrated. Whether your key refuses to turn, gets stuck, or simply won't insert smoothly, these issues are more common than you might think, especially in certain vehicle models. Understanding the underlying causes and knowing when to seek professional help is crucial for a swift and effective resolution, ensuring you're back on the road with minimal fuss.

- Common Symptoms of a Failing Ignition System
- Why Do Car Ignitions Fail?
- Diagnosing Your Ignition Cylinder Needs Replacement
- The Professional Ignition Repair and Replacement Process
- Cost of Ignition Repair and Warranty
- Why Choose a Professional Locksmith for Ignition Repair?
- Frequently Asked Questions About Ignition Repair
Common Symptoms of a Failing Ignition System
Many drivers experience a range of frustrating symptoms that point towards an ignition problem. Recognising these signs early can save you from more extensive damage and costly repairs down the line. Here are the most frequently reported issues:
- Key Won't Go In: You might find it difficult, or even impossible, to insert your car key into the ignition barrel.
- Key Won't Come Out: The key gets stuck in the ignition, even when the car is switched off, preventing you from removing it.
- Key Won't Turn: You can insert the key, but it simply refuses to rotate, leaving your car immobilised.
- Key Only Turns a Little Bit: The key rotates partially but not enough to engage the ignition or start the engine.
- Key Difficult to Insert: There's resistance or a grinding sensation when trying to insert the key, suggesting internal wear.
- Key Loose or Falling Out: If your key feels loose in the ignition, or even falls out while the car is running, this is a serious safety concern and indicates a worn lock mechanism.
While these problems can affect any vehicle, they are particularly prevalent in certain Honda models produced between 2003 and 2017. This includes popular models such as the Accord, Civic, Jazz, CR-V, CR-Z, Insight, Accord Euro, City, Legend, and Integra, among others. Honda's design, while robust for security, introduced a mechanically complex system that, over time, can become susceptible to wear.
Why Do Car Ignitions Fail?
Ignition lock failures primarily stem from two key factors: wear on the internal components of the ignition barrel and wear on the key itself. Both contribute to a breakdown in the precise mechanical interaction required for the ignition to function correctly.
Worn Tumblers
Inside your ignition barrel are tiny components called tumblers (sometimes referred to as wafers). These small metal pieces have an incredibly fine bearing surface that interacts with the cuts on your car key. Every time you insert and withdraw the key, and even as you drive over bumpy roads, these tumblers rub against the key's edges. Over years of use, this constant friction causes them to wear down. When tumblers become worn, they no longer sit at the correct height when the key is inserted, preventing the lock from recognising the key's unique pattern and thus, stopping it from turning.
Worn Keys
The other significant culprit is a worn-out car key. Just like the tumblers, your key undergoes constant wear and tear. Over time, the sharp, precise angles of the key's cuts become rounded and smoothed. A worn key cannot properly engage the tumblers within the ignition barrel. Instead of lifting them to the correct position, the rounded edges can push against the sides of the tumblers' chambers, causing further damage to both the key and the internal wafers. This often leads to drivers forcefully trying to insert or turn the key, exacerbating the problem and accelerating wear.
Important Advice: If you find your key difficult to insert, stop immediately. Forcing it will only cause more damage to both the key and the ignition barrel. Instead, try applying a small amount of lubricant, such as INOX, RP7, or WD40, to the key. Do not drench it, just a light spray. Gently try to insert the key again. If it doesn't slide in smoothly, do not force it. This temporary fix might buy you some time, but it's a clear sign that professional attention is needed.
Moreover, if your key is visibly worn – with rounded edges and less defined cuts compared to a new key – it's highly recommended to have a new key cut by code. A new, precisely cut key will prevent further damage to a repaired or new ignition lock and ensure smooth operation.
Diagnosing Your Ignition Cylinder Needs Replacement
Understanding how your car key interacts with the ignition at different positions can help you self-diagnose potential issues and provide valuable information to a locksmith. The key's behaviour in these positions is a good indicator of the ignition cylinder's health:
- The Lock Position: This is the default 'OFF' position when your key is fully inserted but not turned. This is the only position where the key should be easily removable. If your key can be removed or feels loose in any other position, your ignition cylinder is likely faulty.
- The ACC (Accessory) Position: A half-turn from the 'Lock' position, this allows certain car functions like the radio, windows, or air conditioning to operate without the engine running. Your key should be locked firmly in this position and not be removable.
- The ON Position: After fully turning the key to crank the engine, it springs back and settles into this position. All car functions should be operational, and you should be able to drive. Crucially, the key should be securely held in this position and impossible to remove.
- The Start Position: This is the brief, momentary position you turn the key to fully engage the starter motor and crank the engine. Once the engine starts, you release the key, and it springs back to the 'ON' position. The key should not be removable from this position, and it should only be held here for a very short duration to avoid damaging the starter.
If your key is not held securely in its intended position, or if you experience difficulty inserting, turning, or removing the key, these are strong indicators of a degraded or failing ignition cylinder. Furthermore, a faulty ignition cylinder can manifest as other issues, such as certain car functions not working, or the car failing to start altogether.
The Professional Ignition Repair and Replacement Process
When it comes to ignition repairs, particularly for complex systems like those found in Hondas, professional expertise is paramount. Attempting a DIY fix without the right tools and knowledge can lead to further damage and higher costs.
Initial Assessment and Preparation
A qualified locksmith will begin by assessing the problem to confirm it's indeed an ignition cylinder issue. Once confirmed, the first critical step is to disconnect the negative terminal of your car battery. This is a vital safety measure that prevents electrical shocks and accidental starting of the vehicle during the repair process.

Accessing the Ignition Barrel
The ignition barrel is typically housed within the steering column, protected by various plastic cowlings and covers. These need to be carefully removed. This often involves unscrewing various fasteners and delicately detaching latches. Some latches can be particularly tricky, requiring a specific technique to loosen without causing breakage. An experienced professional knows exactly how to handle these delicate components to avoid unnecessary damage.
Accessing the ignition cylinder itself may require the removal of other surrounding parts to reach hidden screws or bolts. The sequence of removal is often crucial to prevent complications during reassembly.
Removing the Faulty Cylinder
Once the covers are off, the locksmith will focus on the ignition cylinder. This involves locating and removing specific screws or bolts, sometimes requiring specialised tools or drill heads. A key part of the removal process involves depressing small pushpins that secure the cylinder. These pushpins can be located in various positions depending on the car model and can sometimes be tricky, with multiple pins sharing a single hole. In some cases, if the cylinder isn't too damaged, the key may need to be inserted and turned to a specific position (often 'ON') to facilitate removal.
For Honda ignitions, the process can be even more complex. The barrel is often secured by a roll pin or, more commonly, by shear-off bolts. These bolts are designed to be extremely difficult for thieves to remove, meaning they require a special technique involving experience, finesse, and sometimes brute force, to extract without damaging the steering column or triggering safety features like airbags.
In many cases, the entire ignition lock housing may need to be removed from the steering column and taken to a workshop. Working on a workbench, rather than contorted under the steering wheel, allows for greater precision and efficiency in removing the faulty barrel.
Replacement and Reassembly
Historically, repairing worn ignition barrels involved disassembling them and replacing individual worn wafers. However, for many modern ignitions, particularly the problematic Honda units, the most effective and reliable solution is full replacement. Since early 2019, high-quality aftermarket Honda ignition cylinders have become readily available, offering a reliable and more cost-effective alternative to prohibitively expensive OEM parts.
The locksmith will assemble a new ignition cylinder using the appropriate tumblers, specifically coded to your existing car key. This ensures that your original key will continue to work with the new barrel, meaning you won't need to carry separate keys for your doors and ignition. The new cylinder is then securely installed into the ignition housing, and any removed roll pins or shear-off bolts are properly refitted.
If the housing was removed, it will be refitted to the steering column, and all switches, wires, and the aerial for the immobiliser reader ring are reattached. Before final reassembly, the car battery is checked and reconnected.
Key Cutting and Programming
In many instances, a worn key is a significant contributor to ignition failure. Therefore, as part of the repair, a locksmith may recommend cutting a new key. Professional locksmiths carry Honda key shells and can cut a new blade/shell to code, transferring the essential electronic components from your old key to the new one. This ensures that the new key not only operates the ignition smoothly but also retains its immobiliser and remote functions.

Cost of Ignition Repair and Warranty
The cost of a car ignition repair can vary depending on the make and model of your vehicle, the complexity of the repair, and whether a full replacement is needed. For common issues like Honda ignition replacements, prices typically start from approximately £350. This usually includes the new ignition cylinder and fitting.
Professional locksmiths often provide warranty options for their work, giving you peace of mind:
| Service Provided | Warranty Period | Notes |
|---|---|---|
| Ignition Cylinder Replacement Only | 12 Months | Covers defects in the cylinder and workmanship for 12 months. |
| Ignition Cylinder Replacement + New Key Shell Cut by Code | Lifetime Warranty | Covers the repair and keys for as long as you own the car. Highly recommended for long-term reliability. |
Opting for a new key cut by code alongside the ignition replacement, even if it adds a small extra cost (e.g., around £50), is a highly recommended investment. It not only ensures your new ignition operates perfectly but also provides an unparalleled lifetime warranty, meaning any future issues with the key or ignition will be fixed for free for the entire duration of your car ownership.
Why Choose a Professional Locksmith for Ignition Repair?
Choosing an experienced locksmith for your ignition repair offers numerous benefits:
- Expertise and Tools: Professionals have the specialised tools and extensive training needed to accurately diagnose issues and perform complex repairs without causing further damage.
- On-Site Service: Many locksmiths offer mobile services, meaning they can come directly to your location, saving you the hassle and cost of towing your vehicle to a garage.
- Efficiency: With years of experience, locksmiths can quickly identify the problem and carry out the repair efficiently, getting you back on the road in no time.
- Guaranteed Work: Reputable locksmiths offer warranties on their parts and labour, providing assurance and support should any issues arise after the repair.
- Cost-Effective: While there's an upfront cost, professional repair prevents further damage that could lead to more expensive fixes down the line. Hidden fees are typically avoided, with transparent pricing provided before work begins.
Frequently Asked Questions About Ignition Repair
Can I just replace my worn key instead of the ignition?
While a worn key is often a major contributor to ignition problems, simply replacing the key might not be enough if the internal tumblers of the ignition barrel are already significantly worn. A new key might temporarily alleviate symptoms, but the underlying issue with the ignition will persist and likely worsen. A locksmith can assess your key and ignition to determine the best course of action.
How long does an ignition repair take?
The time required for an ignition repair can vary. A straightforward replacement might take a couple of hours, while more complex jobs involving difficult-to-remove shear-off bolts or extensive disassembly could take longer. A professional locksmith will provide an estimated timeframe after diagnosing the issue.
Will I need new keys for my car after an ignition replacement?
Not necessarily. A professional locksmith can re-key the new ignition cylinder to match your existing car key. This means your original key will still operate the doors and the new ignition barrel, avoiding the need for separate keys.
What's the difference between an ignition barrel and an ignition cylinder?
These terms are often used interchangeably. The 'ignition barrel' or 'ignition cylinder' refers to the part of the ignition lock where you insert your key. It contains the tumblers and mechanisms that read the key's cuts and allow the ignition to turn.
Is it safe to drive with a faulty ignition?
No, it is highly unsafe to drive with a faulty ignition. Issues like a key falling out while driving, or the car unexpectedly cutting out, can lead to serious accidents. It's crucial to get the ignition repaired as soon as symptoms appear.
A problematic car ignition can be a major headache, but with the right professional help, it's a fixable issue. Don't let a faulty ignition leave you stranded; addressing the problem promptly ensures your safety and the longevity of your vehicle's starting system.
If you want to read more articles similar to Is Your Car Ignition Faulty? Here's the Fix!, you can visit the Automotive category.
