What to do when you lose your suitcase key and a reliable support guide

  • New Trip

Update date: 2025.10.30
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The day before your trip, just before departure, or at the baggage counter at the airport...

It's surprisingly common to find yourself in a situation where you can't find the key to your suitcase.

If you panic and try to force it open, you may end up with problems that require repairs, such as broken locks or warped casters .
But knowing the right steps can help you stay calm and safe.

In this article, we will introduce specific steps to take when you lose your keys , as well as support services available at airports and hotels .
We will also provide a thorough explanation of the key points to prevent recurrence .

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1. Three solutions to try when you lose your suitcase key

2. First aid and safe transportation when you lose your keys while traveling

3. Five habits to prevent losing your keys

4. No need to worry if you lose your keys! Three suitcases recommended by New Trip

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FAQ: Suitcase lock trouble Q&A

1. Three solutions to try when you lose your suitcase key

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Anyone would panic the moment they lost the keys to their suitcase.
However, if you try to force it open in a hurry, you risk damaging the lock or hinges.
Stay calm and try the following solutions one by one.

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1. Combination type (TSA lock)

2. Key-operated

3. Hire professional services

① For combination locks (TSA locks): Reset the PIN

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TSA combination lock suitcases often have problems such as "I forgot the combination" or "It won't open with the initial settings."
In this case, although it varies by manufacturer, most models allow you to reset the number .

Example: New Trip TSA008 lock reset procedure

  • Set the dial to "0-0-0" (initial setting).
  • Press the small reset button on the side of the lock with a thin pen or similar.
  • Dial any three-digit number (e.g. 2-4-6).
  • Release the button and the new number will be set.

💡Points

If you have completely forgotten the number, you may be able to open it by trying each number in order from "000" to "999".

If it still won't open, it's safest to use the airport repair service introduced in the next chapter.

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② If it is a key type: Do not try to open it with a substitute! Contact official support.

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If you lose a small key type (such as TSA002 or TSA007),
There are also methods introduced on the internet that use hairpins or wire to open the door, but
This carries a high risk of damaging the internal structure and is not recommended if possible.

・Correct response method

  • Contact the manufacturer or the store where you purchased the suitcase and provide them with the suitcase's serial number.
    → You may be able to get a duplicate key or replacement lock reissued.
  • If you have an extended warranty , repair costs may be covered.
    → New Trip's official paid warranty service ( extended warranty plan available here ) also covers problems with locks, casters, etc.

💬Notes

Forcing it open using a screwdriver or pin will deform the locking parts and void the warranty .

If your suitcase is damaged, it will be difficult to repair it while you are traveling, so it is best to have it handled by a professional.

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③Request professional services

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The safest option is to contact a professional locksmith or airport repair service .
If you are requesting this service while traveling, choose a company that is TSA lock compatible.
The average cost of the work is around 3,000 to 8,000 yen .
Some airports and hotels have affiliated companies on-site who can assist you on the spot.
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2. First aid and safe transportation when you lose your keys while traveling

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If you lose the key to your suitcase while traveling, you may feel panicked.
However, if you don't panic and follow the steps carefully , you can safely avoid damaging your luggage. Here we will introduce first aid measures you can take while traveling and ways to bring your luggage home without straining yourself.

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First, calm down and check

2. Airport Response

3. Consultation at the hotel

4. Temporary fixation and safe transport methods

① First, calm down and check! Before you conclude that your keys are really "lost,"

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When you can't find your keys, it's important not to immediately assume they're lost.
Let's check out the following three places in order.

  • Small item pockets and inner pockets in bags
  • Hotel rooms and bedside areas
  • At airport security checkpoints and under seats

In particular, when it comes to suitcases with TSA locks, it is common for them to be left unlocked or for the PIN code to be entered with just one digit incorrect.

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② Airport assistance: How to use the baggage counter and lost property center

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At the airport, the baggage counter or the Lost & Found Center are your first port of call.
If you lose your key before boarding, you can explain the situation at the check-in counter and they may be able to check the TSA lock and help you open it.

  • Narita Airport : You can request unlocking at the baggage service counter (TSA lock compatible).
    Repair service available in Terminal 1 on the same day.
  • Kansai International Airport : Repair technicians are stationed at each terminal and can open and repair locks on the spot.

Also, if you lose your luggage after boarding the plane and are returning home, you can report it to the lost property desk in the arrival lobby and they may contact you if it is found later.

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・Related article : "How to deal with problems after checking in luggage at the airport "

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3. Hotel consultation: What kind of support can you rely on at the front desk?

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Hotel front desk staff are used to dealing with minor travel issues.
If you tell them that you have lost the key to your suitcase and cannot open it, you may be able to receive the following assistance:

  • Introduction of affiliated repair and unlocking companies
  • Rental of cable ties for temporary fixation as an emergency measure
  • Assistance with reporting loss and creating reports

Especially when abroad, it's reassuring to be able to contact the contractor in the local language.

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④Temporary fixation and safe transport method

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If you still can't open it, try to find a way to transport it safely without breaking it .
We recommend the following:

  • Temporarily secure the zipper with a cable tie
  • Simple locking with a small padlock or luggage band
  • Use suitcase belts to prevent the contents of your luggage from spilling out

This way you can safely take it home with you when checking it in for your flight.
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3. Five habits to prevent losing your suitcase keys

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Losing your keys is a surprisingly common travel problem.
But with a little preparation and good habits, you can prevent many of these accidents.
Here we will introduce in detail the ``5 habits that will help you never lose your keys'' that experienced travelers practice.

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1. Carry a spare key in a separate bag

2. People who are suitable for purchasing in stores

3. Save the serial number and warranty card

4. Check the operation of the keys regularly

5. Extended warranty service in case of loss

① Carry a spare key in a separate bag

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Be sure to store the spare key that comes with your suitcase in a separate bag .
The ideal way would be something like this:

  • Only keep "currently in use" keys in your main bag
  • Keep a spare key in your sub-bag, pouch, or in your companion's bag
  • It also fits nicely in a travel case or passport case.

Losing even one key can be a major source of stress, especially when traveling long distances or abroad.
By distributing spare keys, you can immediately avoid problems with unlocking the door on site.
Also, taking a photo of the key shape and number with your smartphone will be useful when ordering a spare.

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② Choose a keyless combination lock or TSA lock

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Key-type locks are compact and convenient, but the key itself that you carry around with you carries the risk of being lost.
On the other hand, combination TSA locks do not require a key ; as long as you remember the combination, there is no problem.

The 2025 model in particular is equipped with the following convenient features:

  • PIN reset function
  • Anti-reset lock
  • TSA007/TSA008 compliant (safe for airport security checks)

With a combination lock, you don't have to go through the trouble of searching for your keys, and you can write down the number and share it with your family.
The biggest advantage is that there is no element to physically lose.

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3. Save the serial number and warranty card

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Suitcases often have a serial number or lock number stamped on them.
With this number, you can request a replacement key from the manufacturer.

Recommended storage methods:

  • Take a photo of the key number and serial number with your smartphone and save it in the cloud
  • Store the warranty card in a separate place from your suitcase
  • Also note down the support contact information of the manufacturer and the store where you purchased it.

By simply having these ready, you can prevent situations like, "I lost my key but I don't know which model number it is..."
In particular, the TSA lock key number is important information required for reissuance.

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④ Check the operation of the keys regularly

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Always check the locks to make sure they work properly just before you travel or a few days before you leave.

The checkpoints are as follows:

  • Is the key easy to turn?
  • Are the numbers on the dial lock aligned correctly?
  • Does the TSA lock pin work properly?

Regular inspections will allow you to quickly notice problems such as rust, dust, and deformation .
It is also effective to lightly clean the keyhole after each use and keep it lubricated with silicone spray .
These small maintenance steps can help prevent lock problems.

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⑤ Subscribe to the "Extended Warranty Service" in case of loss

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Finally, we recommend an extended warranty service just in case.
Depending on the manufacturer or retailer, the warranty may also cover lost or damaged keys, or defective locks.

for example:

  • Warranty period extended from 3 years to 5 years
  • Free or discounted rekey and repair fees
  • Support requests can be made from anywhere in Japan or overseas

It can often be purchased for a small fee at the time of purchase, which can ultimately save you money on repairs.
High-end suitcases (such as Rimowa, Samsonite, and Ace) have particularly generous warranties, so it's a good idea to check when purchasing.
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4. No need to worry if you lose your keys! Three suitcases recommended by New Trip

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The most reliable way to prevent suitcase lock problems is to choose a design that does not require a key .

All New Trip suitcases are equipped with TSA combination locks , eliminating the need to carry a physical key.
You can safely lock and unlock the door using just your PIN number.

This will prevent the trouble of "I lost my keys!" from occurring.

Here we introduce three recommended models that combine security and ease of use .

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1. New Trip 0501

2. New Trip 0702Plus

3. New Trip 1101

①New Trip 0501 Front Opening x TSA Lock x USB Port

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Key features:

  • The front-opening design makes it easy to take out and put in your PC or documents.
  • TSA007 Dial lock + USB port , perfect for business trips
  • Casters with double stoppers for stable movement
  • 4-position carry bar + smartphone stand for excellent usability

The New Trip TriPro 0501 is a popular model, especially among business travelers and short-term travelers .
It can be locked with a PIN code, so there is no need to carry a key, and security is also guaranteed.
You can also use the USB port to charge your smartphone while on the go.
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②New Trip 0702Plus Large Capacity Structure × TSA008 Lock × Silent Casters

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Key features:

  • High security with TSA008 lock
  • Lightweight and durable ABS + PC hybrid material
  • YKK brand zipper structure for peace of mind even on rainy days
  • Casters with integrated stoppers + 4-position aluminum handle

The New Trip 0702Plus is a stylish model that is popular among women.
Not only does it allow you to travel smartly without a key,
It is also resistant to sudden rain and shocks while traveling, making it a "standard item for experienced travelers."
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③New Trip 1101 Aluminum Frame x TSA Lock x Luxury Design

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Key features:

  • Aluminum frame construction provides excellent durability, water resistance, and shock resistance
  • Equipped with a TSA007 lock , it has keyless combination security.
  • Silent brake casters and multi-stage carry bar for comfortable movement
  • Chic and high-quality design (gray and black are popular)

The New Trip 1101 is a high-grade model that prioritizes security and durability.
It is tightly sealed with an aluminum frame instead of a zipper,
It is less likely to cause problems with losing keys and is also highly waterproof .
Recommended for those who use suitcases frequently, such as for business trips or long trips.
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All models feature TSA combination locks , so you don't have to worry about losing your physical key.
Furthermore, the structure is waterproof, quiet, and durable, making it safe to use wherever you travel.
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summary

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スーツケースの鍵紛失時は、①ダイヤル式リセット、②メーカー連絡、③専門サービス依頼の3手順で対応。
無理なこじ開けは破損リスクを避けましょう。

旅行先では空港カウンター・ホテルフロントを活用し、結束バンドで一時固定。
防止策は予備キー分散、ダイヤル式選択、シリアル保存、メンテ、延長保証の5つ。
New Tripの鍵不要TSAダイヤルモデル（0501/0702Plus/1101）は機能充実で安心。事前準備でトラブルゼロの旅を！

🧳 賢く選んで、あなたにぴったりのスーツケースを見つけましょう！
👉 New Trip 公式オンラインストアはこちら

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FAQ: Suitcase lock trouble Q&A

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Q1. 鍵をなくしてもTSA職員なら開けてもらえますか？

A1：TSAロック付きであれば、アメリカの空港では職員が専用ツールで開けられます。

Q2. 鍵番号が分からない場合はどうすれば？

A2：鍵番号が分からなくても、メーカーにシリアル番号を伝えると再発行できる場合があります。

Q3. ダイヤルロックが動かない時の対処法は？

A3：番号を少しずつ動かしながら、カチッとする位置を探しましょう。

Q4. 鍵開け業者に依頼する際の費用は？

A4：一般的に3,000〜8,000円程度が相場です。

Q5. 保証期間外でも対応してもらえますか？

A5：多くのメーカーは有償で修理・鍵再発行に応じています。保証書を確認してみましょう。

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