Last Updated on February 11, 2025 by Alan Weir
As an experienced car locksmith, I’ve encountered countless cases of car lock malfunctions, many of which stem from simple wear and tear. Locks are, after all, mechanical devices, and like any machinery, they require a bit of TLC (that’s tender loving care, if you’re wondering). The good news is that with proactive measures, you can extend the lifespan of your car locks significantly, saving you money and headaches down the line.
Understanding Car Lock Mechanics
Before we dive into the specifics, let’s talk a bit about how car locks work. Most modern vehicles are equipped with either traditional key locks or keyless entry systems. Traditional locks use a pin-and-tumbler mechanism, where your key aligns pins to allow the lock to turn. In contrast, keyless systems rely on electronic components that can also suffer from wear, albeit in different ways. Both types have moving parts that can become less effective over time if not maintained properly. Now, let’s turn our focus to how we can keep those locks performing at their best.
Regular Maintenance is Key
One of the most straightforward ways to prevent wear and tear on your car locks is regular maintenance. This doesn’t mean you need to be a mechanic; a few simple checks will suffice:
Keep It Clean
Dirt and grime can accumulate in your car locks, which not only makes them harder to operate but can also lead to rust and other forms of degradation. Use a can of compressed air to blow out any dirt, dust, or debris that might have settled in there. You can also use a soft cloth or cotton swab dipped in a little isopropyl alcohol to clean around the keyhole and other accessing points. Make sure it dries fully before using the lock again – moisture can lead to rust, and we don’t want that!
Lubricate Your Locks
Next up on the maintenance checklist is lubrication. Just like how your car needs oil to keep running smoothly, your locks need the appropriate lubricant. However, steer clear of oily substances, which can attract dirt. Instead, use a silicone-based lubricant or graphite powder. Apply a small amount directly into the keyhole and ensure you insert and remove the key a few times to get it thoroughly distributed. Regular lubrication can mitigate wear on internal components, making your lock work like a charm.
Use Your Key Properly
It may seem like common sense, but using your car key properly can significantly reduce unnecessary wear. Avoid forcing the key if you feel resistance. Forcing a key can bend it or damage the lock mechanism. Instead, double-check that you’re inserting it correctly. If you encounter resistance, it’s worth investigating the issue further instead of treating it as just part of the routine.
Consider a Spare Key
Car keys can wear out over time too. If you regularly use one key for locking and unlocking, you may notice it getting bent or worn down. Investing in a spare key can help distribute the wear more evenly. You’ll not only have a backup in case of loss, but it will also give each key a breather.
Monitor External Conditions
Your car locks are exposed to external conditions, and these can significantly affect their lifespan. In the UK, we’re no strangers to rain, snow, and extreme temperatures – all of which can accelerate wear and tear.
Protect Against the Elements
Whenever possible, park your car in a garage or use a good quality car cover. This can help shield the locks from harsh weather conditions, thereby extending their life. Additionally, if you live in an area with salted roads during winter, be mindful that salt can cause corrosion. Rinse your car (including the locks) after exposure to salt, and dry them to prevent any build-up.
Be Wary of Ice
If your vehicle is often exposed to frost or snow, consider investing in a lock de-icer. These handy little tools can melt away any ice build-up and prevent you from jiggling your key into an icy lock, which can cause undue stress to the mechanism. You might also want to avoid pouring hot water on frozen locks. While that might seem like a quick fix, the rapid temperature change can cause the lock to crack or break.
Electronic Locks and Key Fobs
If your car is equipped with an electronic locking system, maintenance can be a bit different from your traditional locks. These systems rely on batteries and electronics that can wear down over time.
Battery Care
Always pay attention to the performance of your key fob. If you notice it’s not working as smoothly as it once did, the battery may be low. Replace it promptly—many modern key fobs can be easily opened with just a screwdriver, and you can buy replacement batteries from most supermarkets or online stores. Regular battery checks, especially before long trips, can save you from the hassle of being locked out.
Software Updates
In some higher-end vehicles, the locking system could be integrated with the car’s onboard computer. Just like any tech device, these systems may require software updates to function optimally. Check your owner’s manual or consult your manufacturer for specifics on how to keep your car’s software up-to-date.
What to Avoid
Now that we’ve covered best practices, let’s touch on a few things you should definitely avoid:
Don’t Use WD-40
While WD-40 is a go-to solution for many household problems, it’s not ideal for car locks. Its oil can attract dirt and cause more harm than good over time. Stick to silicone-based lubricants or graphite.
Avoid Excessive Force
If your lock is jammed, it’s tempting to give it a good, hard tug. But remember, just like with other mechanical devices, forcing it can lead to permanent damage. If you’re having trouble, it’s often best to consult a professional.
Know When to Seek Help
If you’ve followed all the above recommendations and your locks still seem sluggish or faulty, it might be time to consult a professional locksmith. There may be underlying issues that require expert attention.
Regular Inspections
Just as you might take your car in for servicing, consider a visit to a locksmith for an inspection of your locking mechanisms. A professional can spot issues you might overlook and help ensure everything is functioning correctly.
Finding the Right Expert
When searching for a reputable locksmith, do some research. Look for reviews, ask friends for recommendations, and make sure to choose someone who has a solid reputation and experience in dealing with your type of vehicle.
Additional Resources
Feeling a bit overwhelmed? Don’t worry—there are plenty of resources out there to help you master car lock care. Check out AAA’s guide on automotive lock maintenance or delve into your car’s owner’s manual, which often includes specifics on caring for your locks.
Staying proactive about your car locks will not only give you peace of mind as a driver but will genuinely prolong the life of your locks. After all, a functioning lock is a key aspect of your car’s overall security and utility, and you deserve that confidence behind the wheel!
Alan Weir – Master Locksmith with 30+ Years of Experience
Alan Weir is the founder of Weir Locksmiths and a Master Locksmith with over three decades of experience. Renowned for his expertise in home and automotive security, Alan has built a reputation for providing reliable and innovative locksmith solutions across the UK.
A certified member of the Master Locksmiths Association (MLA), Alan specialises in residential, commercial and automotive locksmith services including car key replacement, transponder programming, and advanced security systems. His dedication to the field has earned him thousands of satisfied customers and glowing reviews on platforms like Checkatrade.
Now contributing to RevLock, Alan shares his expert knowledge to all of RevLocks visitors.
