Everything Mitsubishi owners across Melbourne need to know about key replacement, from what it costs to how long it takes, and exactly who can help.
Losing your Mitsubishi key is one of those problems that brings everything to a halt.
So here’s the short answer: Mitsubishi key replacement in Australia costs between $150 and $750 depending on your key type, and in most cases can be done the same day – without going through a dealership.
You need quick answers, what’s it going to cost, how long will it take, and do you really have to go through the dealership? The problem is, most of the information out there is vague, outdated, or written to upsell you on something you don’t need.
At Speedy Car Keys, Mitsubishi car key replacement is something we handle every single day. This guide gives you with the simple facts, in order to help you choose the best choice without going over budget. Such as important types, actual price ranges, realistic timescales, and a thorough analysis of every option at your disposal.
First: Identify Your Mitsubishi Key Type
Mitsubishi has used several different key systems across its model range over the years. Knowing exactly which one your car uses is the first step — it determines the cost, the process, and who can actually do the job.
Older Models: Transponder Key
A transponder key is used on older Mitsubishi vehicles, typically those manufactured prior to 2010. This is a conventional cut key with a small electronic chip embedded in the plastic head. When you insert the key, the chip sends a signal to your car’s immobiliser. If the signal doesn’t match, the engine won’t start.
Transponder keys are the most straightforward to replace and the most affordable option across the range.
Mid-Range Models: Remote / Flip Key
Many Mitsubishi models use a remote key, either a folding flip key or a standard key linked with a separate remote fob. The key handles ignition, the remote handles central locking. If only the remote stops responding, it may simply need reprogramming or a new battery rather than a full replacement.
Newer Models: Mitsubishi Smart Key
Newer Mitsubishi models, such as the Outlander, Eclipse Cross, and ASX, feature a proximity-based smart key technology. You keep the key in your pocket; the car detects it and allows you to unlock and start with a button press.
Smart keys are the most technologically complex to replace and the most expensive. Additionally, they need specialised programming equipment, which not all locksmiths have, so before you commit to anyone, make sure they have it.

Mitsubishi Car Key Replacement Cost: What You’ll Actually Pay
Cost is the number one question we get asked. The truth is that it varies, but depending on who you visit, this is a clear image of what to anticipate.
Dealership Price Guide
Mitsubishi dealerships can replace any key for your vehicle using genuine parts and factory tools. That’s the upside. The drawbacks are that wait times and prices are always more than those of independent options.
| Key Type | Dealership Estimate (AUD) |
| Transponder key | $250 – $450 |
| Remote / flip key | $300 – $550 |
| Mitsubishi Smart Key | $450 – $750+ |
Programming fees are often charged on top of the part cost. If your key needs to be ordered, which is frequent for older or less common models, the wait period can be a week or longer.
Auto Locksmith Price Guide
A qualified Mitsubishi auto locksmith can source, cut, and program replacement keys for most Mitsubishi models at a significantly lower price — and usually the same day.
| Key Type | Speedy Car Keys Estimate (AUD) |
| Transponder key | $150 – $250 |
| Remote / flip key | $200 – $350 |
| Mitsubishi Smart Key | $300 – $500 |
At Speedy Car Keys, programming is always included in the quoted price. What you’re told upfront is what you pay.
Why Prices Vary: Key Factors Explained
Several factors influence the final cost of your Mitsubishi car key replacement:
- Key type — smart keys cost more than transponder keys due to the technology and programming time involved
- Model and year — newer models with advanced security systems take longer to program
- Number of working keys — if you’ve lost all keys, the process is more involved and costs more
- Mobile vs in-shop — a mobile callout may include a travel fee depending on your location
How Fast Can You Get a Replacement Mitsubishi Key?
Timeframes vary significantly depending on who you go to and which key type you need.
| Key Type | Speedy Car Keys | Dealership |
| Transponder key | 30 – 60 minutes | 1 – 3 days |
| Remote / flip key | 45 – 90 minutes | 2 – 5 days |
| Mitsubishi Smart Key | 1 – 2 hours | 3 – 7 days+ |
Dealership timelines blow out further if your key needs to be ordered from overseas, not uncommon for certain Mitsubishi models. If getting back on the road quickly matters, a qualified mobile auto locksmith is almost always the faster path.
Same-day service: In most circumstances, Speedy Car Keys can replace your Mitsubishi key on the same day you call – we come to you, so there is no towing or waiting at a service centre.
Dealership, Auto Locksmith or Online — Which Should You Choose?
Mitsubishi Dealership
Dealerships have factory-level access to genuine Mitsubishi parts and official diagnostic tools. For vehicles under active warranty, this can be the right call — particularly if you want everything kept within the Mitsubishi service network.
For everyone else, the trade-off is straightforward: you pay more and wait longer.
Best for: vehicles still under Mitsubishi warranty
Qualified Mitsubishi Auto Locksmith
A qualified Mitsubishi auto locksmith carries the programming equipment and compatible key blanks to service the entire Mitsubishi lineup, from earlier transponder models to the most recent smart key systems.
At Speedy Car Keys, we carry stock for the most common Mitsubishi models and use professional-grade equipment to ensure the key is cut and programmed correctly the first time. We come to you, whether your car is at home, at work, or anywhere else. This eliminates the need for towing and the need to spend a half-day at a service facility.
Best for: most situations, best value and fastest turnaround
Buying a Replacement Key Online, Read This First
You can find Mitsubishi key shells, remotes, and fobs online for $20–$80. Before you go down that path, here’s what to know.
Important: An unprogrammed key blank does nothing on its own. It still needs to be cut to match your ignition and programmed to communicate with your car’s immobiliser. The key will not operate unless both stages are completed; however, not every locksmith has the necessary equipment to programme Mitsubishi smart keys, so check before purchasing.
Buying a blank online and having it cut and programmed locally can reduce costs in some scenarios. But factor in the programming fee before assuming it’s cheaper.
Best for: experienced owners who’ve confirmed programming compatibility in advance
Lost Every Mitsubishi Key? Here’s Exactly What to Do
The most frustrating situation is when there are no working keys at all, but it’s also one of the most frequent situations we deal with at Speedy Car Keys.
When there are no working keys left, a new key has to be generated from scratch using your vehicle’s VIN and security data. This procedure, known as a “all keys lost” replacement, is far quicker and less expensive than going through a dealership, although it takes longer and costs more than a typical spare key.
Here’s what you’ll need to have ready:
- Proof of vehicle ownership — registration papers or a rates notice
- Photo ID matching the registered owner’s name
- Your vehicle’s VIN — found on the dashboard (visible through the windscreen) or on the door jamb sticker
Security note: Proof of ownership is always required for all-keys-lost replacements. This protects you as the vehicle owner and is standard practice for any reputable locksmith or dealership.

5 Ways to Make Sure You’re Not Paying Too Much
Mitsubishi key replacement pricing varies widely across providers. Here’s how to make sure you’re getting a fair deal:
- Get a comprehensive quote upfront, which includes the key blank, cutting, programming, and any callout fees, all in one figure.
- Confirm that the locksmith has Mitsubishi-specific programming tools, particularly for smart keys and newer models.
- Don’t think that the dealership is the only choice. A competent auto locksmith can accomplish the same operation for most models at a reduced price.
- Be wary of extremely inexpensive web quotations; if programming is not included, the ultimate price will be greater than represented.
- Get it in writing before any work begins; any trustworthy service will confirm the fee in advance.
Need a Mitsubishi Key Replaced? We Can Help Today
Lost your Mitsubishi key or need a spare? Speedy Car Keys handles Mitsubishi car key replacement across Melbourne and Adelaide, same-day, mobile service with transparent pricing and no hidden fees.
We come to you. No towing. No waiting days for a dealership appointment.
