Top methods to rekey a car door lock

It happens to the best of us. You're running late, juggling groceries or half-awake on your way to work, and before you realize it—the door clicks shut, and your keys are inside. Getting locked out isn’t just inconvenient—it’s stressful, time-consuming, and sometimes downright expensive. The good news? It’s also highly preventable. In this comprehensive guide, we’ll walk you through smart, real-world strategies to avoid getting locked out again—whether it’s your home, office, or car. These expert prevention tips come straight from the locksmith trenches, and they’re easy to apply, whether you’re forgetful, busy, or just tired of relying on emergency locksmiths. Understand Why Lockouts Happen in the First Place Before solving the problem, we need to understand it. Lockouts typically happen due to: Forgetting or misplacing keys Keys getting locked inside a car or home Doors that auto-lock Broken or worn-out keys Malfunctioning locks or key fobs Most of these are preventable with simple habits, upgrades, or tools. Let’s break them down one by one. Step 1: Create a Key Routine That You Can Stick To One of the most powerful prevention tools? Muscle memory. Create a ritual around your keys—something small and repeatable every time you leave your home, office, or car. For example: Always touch your keys before shutting the door Say “Phone, Wallet, Keys” as a mental checklist Place a reminder near the door (“Do you have your keys?” sign) These tiny behaviors train your brain to check for keys automatically—no effort required after a while. Step 2: Store a Spare Key (But Not Under the Mat!) A spare key is your best backup—but only if it’s stored smartly. Avoid outdated hiding spots like under the doormat, flowerpot, or inside the mailbox. These are the first places burglars check. Instead: Leave a spare with a trusted neighbor or friend Install a secure, weatherproof key lock box with a code Store it in your wallet or bag if it doesn’t interfere with routine And whatever you do, never label your key with your name or address. If it’s lost, your home could be at risk. More on this in our guide: Why You Should Never Hide a Spare Key Under the Mat Step 3: Duplicate and Distribute—Strategically Don’t rely on one key to rule your world. Instead, get professional duplicates made and keep them where you’re most likely to need them. Some smart storage ideas include: One in your car (but hidden securely) One in your gym bag or laptop case One at your workplace One with your dog walker, babysitter, or close family member Just make sure you trust whoever has access—and always update your key plan after roommates or tenants move out. Step 4: Go Keyless With Smart Locks If lockouts are a recurring issue, it might be time to ditch the keys altogether. Smart locks allow you to unlock doors using: Keypads (PIN codes) Smartphones Fingerprint access Bluetooth or Wi-Fi apps Some models even let you generate temporary codes for guests or service workers—so you don’t have to hide a key or hand out spares. Check out How to Upgrade to a Smart Lock Without Changing Your Door for a step-by-step breakdown of modern options that don’t require full door replacements. Step 5: Regularly Inspect Your Locks and Keys Sometimes, it’s not forgetfulness—it’s a failing lock or worn-out key that locks you out. Signs your key or lock may be due for a replacement: Your key feels loose or stiff in the lock You have to jiggle it to get it to work Your key is cracked, bent, or visibly worn You hear clicking, scraping, or feel resistance when turning A quick inspection once a month can catch small issues before they leave you stranded on the porch. Need help deciding if your hardware is still secure? Read: When Should You Change Your Door Hinges for Better Security? Step 6: Have a Go-To Locksmith on Speed Dial In case prevention fails (because life happens), don’t waste time Googling at 2AM when you're locked out. Instead: Research a local, licensed locksmith now Save their number in your phone as “Emergency Locksmith” Confirm they offer 24/7 lockout assistance Check their reviews, verify their licensing, and build a relationship with them before you need them. Our guide on How to Find a Licensed and Trustworthy Locksmith Near You walks you through exactly how. Step 7: Use a Smart Reminder or Tracker If you’re forgetful (hey, we’ve all been there), tech can help: Use a Tile or Apple AirTag on your keychain to track misplaced keys Set location-based reminders on your phone to check for keys before leaving Use apps like “Alarmy” to set a custom checklist for leaving the house These small hacks go a long way in building dependable habits. Bonus Tip: Re-Key After a Lockout (If Needed) If your lockout was caused by lost keys, it’s safer to rekey or replace the locks afterward. Why? Because if someone finds your keys and knows where you live, your home is no longer secure. Not sure what’s best? We break it down in Rekey vs Replace Locks: Which Is Better for New Homeowners? Final Thoughts: Lockouts Are Avoidable With the Right Systems A lockout doesn’t have to be part of your weekly routine. With a few simple changes—like key duplication, smart storage, tech upgrades, and routine maintenance—you can make sure that panic moment at the front door never happens again. It’s not about being perfect. It’s about being prepared. If you ever do get locked out again, don’t panic. Just call your trusted locksmith and take it as a reminder to refine your prevention system. You’ve got this—and your keys.