Imagine this: You’re locked out of your car, keys dangling just out of reach. It’s a frustrating, time-wasting nightmare, right? Or perhaps you need a safe, temporary spot to stash a spare key for a trusted friend or family member. That’s where a car key lock box swoops in as a hero. But choosing the perfect one feels like navigating a maze. Should you get a heavy-duty metal box or a simpler magnetic one? Does it need a digital keypad or just a simple combination dial?
The wrong choice can mean easy access for thieves or, worse, a box that won’t stick to your car frame when you need it most. We understand the worry about security versus convenience. This guide cuts through the confusion. We will break down the essential features, compare the best types available, and show you exactly how to pick a lock box that offers peace of mind without breaking the bank.
Keep reading to discover the ultimate checklist for selecting a secure and reliable Key Lock Box For Car. By the end, you will know which model fits your life perfectly.
Top Key Lock Box For Car Recommendations
- 【Upgraded Version】SL-591 Lock Box is large full metal body with new zinc alloy material and anti-oxidation coating. This makes it strong and safe, corrosion resistant and anti-oxidation. It has been tested to resist external violence. Good protection for stored items. Also includes a smooth protective cover to keep the key pad safe from the elements.
- 【Meet Your Storage Needs】The Key Storage Lock Box has an interior space of 4 x 2.47 x 1.23 inches. Not only can it meet your needs for storing metal keys, car keys, etc. It can also store cash, cards, garage door opening keys, and other items. Safe and secure storage Lock Box.
- 【Versatile Use】Our car key lock box is made for car sharing. Perfect for Turo, Getaround and other car sharing services. A contactless rental service for car owners or landlords. Guests can receive a password and use it at any time. Multi-scene installation use and its safe and convenient storage. The perfect solution for homeowners, realtors, property management, vacation homes, caregivers or anyone else to store their keys or other items.
- 【Easy to Install and Use Design】Back with hook and screw fixing holes. Can be hung on the car window by rolling up the window. Will not scratch the window. Or it can be fixed to the wall or board by screws. Password opening system with familiar phone style keypad, you can easily remember the password and use it skillfully.
- 【Helpful and Friendly Service】To let you have a pleasant shopping experience. If you receive our SL-591 Lock Box. Have questions about the product or are not satisfied with the product, etc. Please don't be angry or upset. Please let us know. We will provide you with a satisfactory solution!
- 【Upgraded Quality Construction】The car window punch button lock box upgrated with a non-scratch pad prevents damage to your car window or other surfaces. The car key lock box features a sturdy solid aluminum alloy body and tough ABS plastic coating, making it durable and long-lasting. It also includes a protective cover to keep the keypad hidden from sight and prevent from any weather conditions.
- 【Versatile and Convenient for Various Applications】The Piclafe car window lock box is a great design for contactless car rental convenience. Avoid the hassle of in-person meetings with our key lock box. Provide guests with a code during pick up/drop off for a simple and time-saving experience. A perfect solution for homeowners, realtors, property management, vacation homes, caregivers or anyone else to store their keys or other items.
- 【Meet Your Storage Needs】- The key lock box is spacious enough to store your valuables and keep them secure while on-the-go. Internal Dimensions are 4 x 3.2 x 1.2in, ideal for holding house keys and car keys, cash, credit cards, and IDs, etc. This versatile and convenient car safe storage box is a great solution for various applications including rideshare, turo, getaround, and for joggers, surfers, skiers, and anyone who needs to go handsfree!
- 【Easy Installation and Use】Our key lock box comes with a back hook and screws, so you can hang it on the car window or fix on the wall. It has a 12-digital password keypad featuring thousands of combinations for maximum security. (Note: 1.Please take a photo record or record with a note after setting a new password, forgetting the password will make it unusable. 2.It's not suitable for vehicles with keyless access as the lock box doesn't block the signal. If you would like to try, you could try to line the inside of the box with tin foil).
- 【Customer Satisfaction Guaranteed】You"ll receive our SL-591 car key lock box, a key labeling tag, all necessary parts and product manual. We stand behind our product and offer free replacement if you're not satisfied or there's a problem with the product quality. Buy with confidence!
- 🔐 [ High-Security Car Key Lock Box ] Our car lock box is crafted from premium rust-resistant aluminum alloy, zinc alloy, and ABS plastic base, meeting the highest quality standards. This durable car key storage box withstands hammer blows, sawing, and prying.Included IP65 excellent waterproof cover conceals the keypad, effectively shielding it from all weather conditions.
- 📸 [ Security Combination Car Key Box ] This police-certified, high-capacity key storage lock box features a 4-digit combination lock offering thousands of possible combinations for enhanced security. Easily reset the password anytime. ‼️Note: After setting a new password, take a photo or record it. If forgotten, the car window safety lock will become inaccessible.‼️
- 🔐 [ Self-Illuminating Passport Wheel ] The four-digit car window lock box features a large, clear self-illuminating passport wheel for quick and accurate password entry even in the dark. The light automatically illuminates for 20 seconds each time the lid is opened. Press night light switch to reactivate the light.
- 👍 [ Extra-Large Capacity ] Lockbox for car keys external dimensions (HxWxD): 4.5 x 3.4 x 2.4 in; Internal dimensions (HxWxD): 3.9 x 3.2 x 1.8 in. Easily stores multiple house/car keys while accommodating access cards, credit cards, cash, USB drives, and other small items.
- 🔐 [ Versatile Applications ] Specifically designed for car sharing, this key box for car seamlessly integrates with platforms like Turo and Getaround. It enables contactless rentals for car owners or landlords, allowing guests to access keys anytime via a password. Supports multi-scenario installation, offering a secure and convenient storage solution ideal for homeowners, real estate agents, property managers, vacation rentals, caregivers, and more.
- 【4-Digit Secure Combination Lock】 🔒 Pre-set to 0-0-0-0 for instant use – Easily reset to your custom 4-digit code in just 4 steps. 🔢 Durable metal dials with 10,000+ unique combinations ensure reliable key security, even in high-traffic areas.
- 【Dual Mounting Flexibility】 📍 Removable shackle for easy hanging on doorknobs, hooks, or racks. 📍 Flat surface mounting (ideal for car chassis, toolboxes, or RV exteriors) – Strong magnetic adhesion holds firm on clean, flat surfaces.
- 【3×N52 Industrial-Grade Magnets】 💥 Vibration-proof grip – Stay securely attached to vehicles, motorcycles, or outdoor equipment during travel. 💪 Heavy-duty holding power – Resists accidental drops, even on rough terrain.
- 【Weatherproof & Rust-Resistant】 🌧️ Sealed design shields keys from rain, snow, humidity, and dust – Perfect for garages, poolside use, or cabins. 🔩 Corrosion-resistant materials ensure long-lasting durability in harsh environments.
- 【Compact Design, Spacious Interior】 📏 Fits most keys (inner dimensions: 1.06"×2.2"×3.43") – Ample space for key fobs, small tools, or even a spare USB drive. 🎒 Lightweight yet sturdy – Easy to carry while providing robust protection.
- Stronger magnetic attraction: The magnetic key box is equipped with 5 strong magnets,which can be firmly fixed on any metal parts under the chassis;the magnetic force is far superior to other password key boxes with only 1 magnet;Even in various complex and bumpy road conditions, it can still stick to the chassis and will not fall off
- Double insurance: Secure Combination Key Hiders comes with a 4-digit password,which can be reset at will,making the hidden key safer;It is very difficult for strangers to open it
- Durable material: In order to be able to be used under the car for a long time, the magnet key box is made of ultra-durable material to ensure that it will not be damaged in long-term use; equipped with soft sponge pads, card sleeves and waterproof bags to reduce friction and protect the items stored inside
- Product size: 3.7" x 2.4" x 1.3",and it also comes with 3 waterproof bags of different sizes,which are waterproof and dust-proof to better protect your items
- Multiple uses: The magnetic hidden key chain is suitable for storing spare keys;in case of emergency,avoid the embarrassing situation of locking yourself out of the house and the door;in addition,we can also use it to place valuables such as locators,bank cards and cash
- DURABLE CAR LOCK BOX FOR TURO & RIDESHARE – The SUPERLIT Turo Lock Box is the ultimate solution for secure key exchanges. Ideal for Turo rentals, car sharing, and rideshare drivers, this car key lock box safely stores your keys or key fob for convenient access and peace of mind.
- UNIVERSAL CAR WINDOW LOCK BOX DESIGN – Easily attaches to car windows, fences, or handles, making it perfect as a car window lock box for Turo or vehicle use. No installation required—just hang, lock, and go. Great for fleet managers.
- INCLUDES RFID BLOCKER POUCH – Protect your keyless entry from hackers and signal thieves. The included RFID blocker pouch shields your fob against remote theft, keeping your vehicle lock box setup extra secure and reliable.
- WATERPROOF & WEATHER-RESISTANT METAL BODY – Built with a durable metal casing that resists rust, dust, and water. Whether used as a lock box for car keys or vehicle key lock box, it performs in all weather conditions for long-lasting protection.
- EASY COMBINATION ACCESS & PORTABLE STORAGE – Set your own secure 4-digit code in seconds. Compact and portable, this car key lockbox is ideal for Turo car rental accessories, rideshare drivers, or emergencies like car lockout key storage.
- WHY MASTERLOCK: Large key lock box has solid metal body built to resist tampering and manipulation
- COLOR AND FINISH: Gray metal with weather-resistant black cover and rubber bumper that protects surfaces from damage or scratching
- KEY LOCK BOX DIMENSIONS: 7.7 in x 3 in x 2.2 in. body, 1.8 in x 1.4 in shackle with .4 in diameter
- EASY TO INSTALL, USE AND TRANSPORT: Lock box has simple set up process, quick, one-step operation and a removable shackle to use across listings, rentals & other properties
- BUILT-IN BIN: Lock box for keys protects keys and access cards in place to prevent jamming when opening and closing
- 【10,000+ Secure Combinations】 Pre-set to 0-0-0-0, easily reset to a custom 4-digit code in 4 steps. Durable dials offer 10,000+ combinations for reliable key storage.
- 【Dual Mounting Options】 Includes a removable shackle for hanging on doorknobs or attaching under car chassis (ensure flat surface for full magnetic adhesion).
- 【3× N52 Heavy-Duty Magnets】 Industrial-strength magnets provide a vibration-proof grip, ideal for vehicles, RVs, or outdoor use.
- 【Weatherproof & Rust-Resistant】 Sealed design protects keys from rain, snow, and humidity—perfect for garages, pools, or cabins.
- 【Compact & Spacious Interior】 Fits most keys (inner size: 1.06"×2.2"×3.43"), with enough room for key fobs or small tools.
Choosing the Right Key Lock Box for Your Car: A Buyer’s Guide
Losing your spare car key can be a huge headache and cost you a lot of money. A key lock box offers a safe place to keep an extra key hidden near your vehicle. This guide helps you pick the best one for your needs.
Key Features to Look For
When shopping for a car key lock box, certain features make a big difference in security and ease of use.
1. Locking Mechanism Type
- Mechanical Combination Locks: These use dials you turn to enter a code. They are simple, reliable, and do not need batteries.
- Digital Keypad Locks: These use buttons to enter a code. They are often easier to set and change the code on. Some models require batteries to work.
- Keyed Locks: Some boxes use a traditional physical key to open them. These are very simple but mean you are hiding a key to unlock the box that holds another key.
2. Size and Capacity
Make sure the box is large enough for your key fob. Modern car fobs are often bulky. Measure your key fob before you buy. Some boxes only hold a small metal key, while others fit large electronic fobs.
3. Weather Resistance
Since the box will live outside your car, it must handle rain, snow, and sun. Look for boxes rated as weather-resistant or waterproof. This stops rust and protects the internal locking parts.
4. Mounting Options
How will you attach the box? Most good boxes offer flexible mounting. Some boxes simply hang onto a wheel rim or brake rotor. Others come with hardware to permanently bolt the box to the car frame or an undercarriage spot.
Important Materials
The material of the lock box directly affects its strength and how long it lasts.
Durable Metals
Steel: Heavy-duty steel offers the best protection against cutting or prying. Look for hardened steel if maximum security is your goal. Thicker steel is always better.
Corrosion Resistance
The box should resist rust. Many quality boxes use zinc-plated or powder-coated finishes over the steel. This coating protects the metal from moisture and salt.
Factors That Improve or Reduce Quality
Not all lock boxes are made equal. Small details often separate a high-quality, secure box from a cheap, easily defeated one.
Security Enhancements (Improving Quality)
- Reinforced Shackle/Hanger: If the box uses a shackle (like a small padlock), that shackle should be very thick and made of hardened material to resist bolt cutters.
- Internal Bumper/Liner: A rubber or foam liner inside the box protects your key fob from being damaged by rattling against the metal box.
- Concealment Design: Boxes that blend in well, perhaps looking like a standard part of the car’s undercarriage, offer better security because thieves overlook them.
Weak Points (Reducing Quality)
- Thin Walls: If the metal is too thin, a thief can easily smash the box open with a hammer.
- Exposed Locking Mechanism: If the keypad or combination dials are easily accessible when the box is mounted, thieves can tamper with them easily.
- Poor Seal: Gaps or weak seals let water seep in, which can ruin electronic key fobs or jam mechanical locks over time.
User Experience and Use Cases
Think about why you need the box and who will use it.
Ease of Use for Emergencies
If you are locking the key for a family member who might need it in an emergency, the code should be easy to remember and quick to enter. Complex digital codes might slow down access when time is critical.
Common Use Cases
- Valet/Mechanic Access: You might use the box to leave a spare key for a trusted mechanic or service provider.
- Hidden Spare Key: This is the most common use—keeping a backup in case the primary key is locked inside the car or lost.
- Sharing Access: Some families use these boxes to share access to a secondary vehicle without handing over a physical key every time.
Frequently Asked Questions (FAQ)
Q: Can a thief easily find a key lock box under a car?
A: Yes, a determined thief knows where to look. High-quality boxes use clever designs that mimic car parts or are mounted in less obvious spots. Always choose a box that hides well.
Q: Do I need batteries for all key lock boxes?
A: No. Mechanical combination boxes do not need power. Digital keypad boxes require batteries to power the buttons and the locking mechanism.
Q: Is it safe to leave a key fob in a lock box outside?
A: It is generally safe for the physical key, but electronic key fobs emit a low-level signal. If the box is very thin metal, a sophisticated thief might use a signal booster to try and unlock your car remotely. Look for boxes with extra signal-blocking material inside.
Q: How often should I change the combination?
A: If you only use it for emergencies, changing the code every six months is a good habit. If you share the code often, change it immediately after the other person has used it.
Q: What is the best place to mount the box?
A: The best place is usually near the brake lines or attached to a stable part of the frame, away from easy view when the car is lifted. Avoid hanging it directly on the axle, as this makes it an easy target.
Q: Can these boxes be drilled open?
A: Yes, any box can eventually be defeated. However, thick steel boxes require specialized, loud tools and significant time, which most opportunistic thieves will avoid.
Q: What should I do if the lock box gets wet?
A: If it is a mechanical lock, dry the exterior thoroughly. If water got inside a digital lock, remove the batteries immediately and let the unit dry completely before trying to use it again.
Q: Will attaching the box damage my car?
A: Boxes that hang onto the wheel rim cause no damage. Boxes that bolt on require drilling into a secure, non-structural part of the frame. Always follow the manufacturer’s instructions carefully.
Q: Are these boxes covered by car insurance?
A: The lock box itself is generally not covered by standard car insurance. Insurance covers the car’s contents or the vehicle itself, not the accessory used to hide a key.
Q: Do I need a key lock box if my car has a subscription service (like OnStar)?
A: Yes. Subscription services can fail if the battery dies or the service is canceled. A physical backup key provides guaranteed access when technology fails.