The best lock box for an SUV depends on what you need to secure and where you want to store it. The License Plate Safe is best for discreet exterior key storage, while the HitchSafe fits a 2-inch hitch receiver. Jeep Wrangler owners can compare two under-seat drawers, and the Younion portable safe offers a keyed option for travel and valuables.
| Product | Best For | Lock Type |
|---|---|---|
| License Plate Safe LPS001 | Hidden exterior key storage | 4-digit combination |
| Hooke Road JK Under Seat Box | Jeep JK owners seeking a locking drawer | Pick-resistant lock with two keys |
| HitchSafe HS7000 | Vehicles with a 2-inch hitch receiver | 4-digit combination |
| Younion Pistol Safe | Portable, keyed storage | Key lock |
| u-Box JK Under Seat Box | Compatible Jeep JK owners needing seat-accessible storage | Locking drawer |
License Plate Safe LPS001

Best for: Drivers who need discreet, exterior storage for a spare key or small valuables. This product combines a license plate frame with a hidden lockable compartment and includes a 4-digit combination lock and Faraday bag. Its steel construction has a powder-coated finish designed to withstand outdoor conditions.
The frame is intended for standard front or rear license plate mounting locations on most vehicles. It may be useful for outdoor activities or contactless car sharing when a hidden key-storage location is needed. It was selected because its exterior mounting approach differs from interior safes and hitch-based options.
Limitation: Fit and mounting location vary by vehicle. Some European vehicles and Teslas require a universal mounting bracket that is not included. Certain pickup configurations and SUVs with rear cameras may require front mounting.
Hooke Road JK Under-Seat Lock Box

Best for: Owners of a compatible Jeep Wrangler JK who want a concealed drawer beneath the driver’s seat. The box attaches using OEM seat-riser bolts and has heavy-duty plated drawer slides. Its high-tech, pick-resistant lock comes with two keys.
This is a vehicle-specific alternative to a portable safe: it uses under-seat space and provides a drawer-style storage area inside the cabin. It was selected for Jeep JK drivers who prefer a fitted installation over storing a loose box in the SUV.
Limitation: The listed fit is limited to 2007–2010 Wrangler JK two-door models and 2007–2018 JK Unlimited four-door models. It is driver-side only, so verify the vehicle year and body style before choosing it.
HitchSafe HS7000 Key Vault

Best for: SUV owners with a 2-inch hitch receiver who want a hidden place for keys, cash, or up to two cards. The all-metal vault slides into the receiver and is held inside with two retaining bars. It has a 4-digit combination lock and a rust-resistant coating.
Choose this option if using the hitch area makes more sense than mounting a box beneath a seat or on a license plate. The product listing describes installation as tool-free and includes the drawer, combination lock, bolts, sliding bars, and a rubber hitch cover.
Limitation: It requires a compatible 2-inch hitch receiver, so it is not a universal interior lock box. The listing also recommends checking that the vehicle’s receiver is suitable before purchase.
Younion Portable Key-Lock Safe

Best for: Buyers who want a portable, keyed lock box for travel or valuables. The safe has a 16-gauge steel housing, comes with two keys, and includes a heavy steel cable for securing it to a fixture. The listed uses include storing cash, medicine, passports, jewelry, or a pistol.
Unlike a vehicle-specific drawer, this safe can be moved between locations. Its cable provides an option for securing the box to a fixture, making it a flexible choice for people who do not want a permanently installed SUV lock box.
Limitation: It uses a key rather than a combination lock, so access depends on keeping track of the keys. The product information does not specify SUV model compatibility or interior dimensions.
u-Box JK Under-Seat Storage Box

Best for: Compatible Jeep Wrangler JK owners who want a locking driver-side drawer that does not interfere with seat adjustment. It mounts beneath the driver’s seat using OEM seat-riser bolts and has heavy-duty plated drawer slides.
The u-Box and Hooke Road options share a vehicle-specific, under-seat design. The u-Box listing explicitly excludes 2011–2018 Wrangler two-door models, while covering listed JK four-door models through 2018. Compare the fit details carefully if choosing between the two drawers.
Limitation: This is not a universal SUV safe. It is driver-side storage for specified Wrangler JK model years, and the listing does not state a lock type or key count.
Buying Guide: How To Choose An SUV Lock Box
Where do you want the box installed?
Choose a license plate safe for concealed exterior key storage, a hitch vault if the SUV has a compatible 2-inch receiver, or an under-seat drawer for a listed Jeep JK. A portable safe is a better fit if you want to move the box between vehicles or locations. These designs have different installation requirements and are not interchangeable.
What will you store?
Match the lock box to the item and intended use. The License Plate Safe and HitchSafe listings focus on keys and small valuables. The Younion safe is described for travel items and a pistol. Check product dimensions and your own storage needs before buying; not all listings provide interior measurements.
Does the vehicle fit the product?
For vehicle-specific drawers, verify the exact model year, body style, and installation side. For exterior or hitch-mounted options, check the plate area, rear-camera placement, or hitch receiver. A product described for “most vehicles” may still require a different mounting position or an additional bracket for some models.
Do you prefer a key or combination?
Combination locks avoid carrying a key, while keyed locks may suit buyers who prefer physical-key access. Consider who needs access and how you will manage the combination or spare keys. A lock box can deter casual access, but the provided product details do not establish that any option is theft-proof.
Frequently Asked Questions
What is the best type of lock box for an SUV spare key?
A hidden exterior option such as a license plate safe or hitch vault is designed for key storage. Choose based on your vehicle’s mounting points and receiver setup.
Can I use an under-seat lock box in any SUV?
No. The Hooke Road and u-Box drawers listed here are designed for specified Jeep Wrangler JK models. Confirm the model year and body style before ordering.
Does the HitchSafe work without a hitch receiver?
No. The HitchSafe HS7000 is designed to slide into a 2-inch hitch receiver.
Are these lock boxes suitable for storing a firearm?
The Younion listing identifies a pistol as one possible use. Follow applicable laws and safe-storage practices, and verify that the product meets your specific requirements.
Is a combination lock better than a keyed lock?
Neither is universally better. A combination lock avoids carrying a key, while a keyed model requires access to its keys. Choose the access method that best fits your routine.