Lost or broken car key for crossover Nissan Murano becomes a serious problem requiring immediate response. Modern models are equipped with complex immobilizer systems, where the mechanical part and the electronic chip are inextricably linked with the electronic engine control unit.
Owners Nissan Murano you need to understand the difference between a simple duplicate and a full-fledged chip key capable of starting the engine. Ignoring the features of the security system can lead to the fact that even a perfectly copied metal part will not work.
Types of keys for Nissan Murano by generation
Assortment of keys for Nissan Murano changed significantly with each model update. The first generations (Z50) used classic folding keys with a separate button to open the doors, while newer versions (Z51, Z52) switched to integrated Smart Key systems.
It is important to accurately determine the generation of your car, since the Z50 and Z52 electronics are completely incompatible. Transponder chip in older models it is often rectangular in shape, while new generations use a more compact and moisture-resistant module.
- 🔑 Z50 (2002–2007): Folding key with separate central locking remote control, chip in the key head.
- 🔑 Z51 (2008–2014): Integrated Intelligent Key system with buttons on the body and keyless entry function.
- 🔑 Z52 (2015–present): Improved Smart Key with protection against relay attacks and an improved antenna.
When ordering a new product, you must check the part code on the body of the old key. Owners often mistakenly believe that any Nissan key will work, but the frequency of the radio signal and the encryption protocol may differ even within the same brand.
Diagnosis of faults and symptoms of failure
Problems with the key Nissan Murano rarely occur suddenly without warning. Most often, the owner notices that the remote control stops responding from the usual distance, and then completely fails.
The most common cause is a low battery, but if replacing the battery does not help, the problem lies deeper. Heating board or mechanical damage to the chip requires professional equipment diagnostics.
Symptoms may be the following: the engine does not start, but the alarm goes off, or vice versa - the doors open, but the starter does not turn. This indicates a desynchronization between immobilizer and the key.
⚠️ Attention: If the key has been dropped into water, even short-term exposure to moisture can oxidize the contacts on the board. Do not try to start the engine with such a key until it is completely dry, otherwise the immobilizer antenna may malfunction.
Programming and synchronization procedure
The process of adding a new key to the car's memory Nissan Murano requires special equipment or strict adherence to the sequence of actions. For models with a mechanical key, the procedure is simpler, but for Smart Key it is critical.
For code entries The immobilizer often requires two working keys. If you only have one left, the procedure should be carried out by a specialist with a diagnostic scanner that can bypass the protection or reflash the control unit.
Owners are not recommended to attempt complex synchronization without experience, as this may result in the access system being blocked. An error in the sequence of button presses may require reprogramming the entire safety unit.
- Never
- Once every few years
- Once a year
- Constantly
Self-replacement of the battery in the Smart Key
The most common and simplest procedure that you can perform yourself is replacing the battery in the key fob Nissan Murano. To do this, you don’t need to contact a service center, just have a flathead screwdriver and a new battery on hand.
You need to find the recessed unlock button on the mechanical part of the key, press it and remove the metal key. Carefully insert a screwdriver into the resulting hole and turn it to separate the key fob body into two parts.
After opening you will see the board with a CR2032 battery installed. It is important not to damage the contacts and install the new battery correctly, observing the polarity (+ up). Reassemble in the reverse order until you hear a click.
☑️ Replacing the battery
If the key does not work after replacing the battery, it may have lost communication with the vehicle and requires reprogramming. In this case, there is no need to panic, as the mechanical key will still be able to open the door.
How to open the door if the Smart Key does not work?
If the battery is completely discharged and the key does not respond, use the mechanical part of the key hidden in the key fob to open the door lock. To start the engine, touch the key fob to the Start/Stop button, even if there is no power - the chip works passively.
Cost of services and price comparison
Prices for keys Nissan Murano vary depending on device type and place of purchase. Official dealers offer original products, but their cost is significantly higher than that of specialized services.
The key to choosing is the balance between price and warranty. Cheap Chinese analogs may be unstable or have a short service life, while the original chip provides reliable communication with the control unit.
| Key type | Original (Dealer) | Analogue (Service) | Programming |
|---|---|---|---|
| Folding (Z50) | 15 000 – 20 000 ₽ | 4 000 – 6 000 ₽ | 1 500 – 3 000 ₽ |
| Smart Key (Z51) | 25 000 – 35 000 ₽ | 8 000 – 12 000 ₽ | 3 000 – 5 000 ₽ |
| Smart key (Z52) | 35 000 – 45 000 ₽ | 12 000 – 18 000 ₽ | 4 000 – 7 000 ₽ |
Please note that the cost of programming is often not included in the price of the key itself when ordering online. Total amount will consist of the cost of the product and the services of an auto electrician.
⚠️ Attention: Avoid buying used keys on the secondary market without checking them. A used chip may be locked into the previous owner's system, rendering it unusable without a complex reset procedure.
Restoring damaged case and chip
It often happens that the electronic key unit is working, but the housing is broken or the buttons cannot be pressed. In this case, there is no point in buying a new key entirely; it is enough to transfer the insides to a new case.
To do this, you need to carefully remove the board and chip from the old case and install them in the new one. It's important not to lose metal key, which also needs to be moved or ordered a new one from a locksmith.
The process of replacing the case requires care, since modern boards are very fragile. Do not use brute force when removing elements to avoid damaging the chip.
Before disassembling the key, take a photo of the location of the elements inside so that during assembly you do not confuse the position of the springs and buttons.
Frequently asked questions and answers (FAQ)
Is it possible to start a car without a key if it is broken?
No, it is impossible to start the engine without a chip in the reading area. However, you can use the emergency start function: attach the key fob (even with a dead battery) to the engine start button and press it.
How long does it take to program a new key?
The procedure usually takes from 20 to 40 minutes, depending on the model Nissan Murano and the availability of equipment from the master. If the control unit needs to be removed, the time may increase.
What to do if all your keys are lost?
In this case, a complete re-flashing of the immobilizer or replacement of the engine control unit will be required. This is an expensive procedure that requires a VIN code and proof of vehicle ownership.
Is it possible to duplicate a key at home?
No, it is impossible to make a functional duplicate with a chip at home. This requires specialized equipment for encoding and recording the radio signal.
Timely maintenance and proper storage of the key will extend its service life. Regular battery replacement and shock protection will help avoid costly repairs.
Having a second working key is critical for safety and saving time in case the main one breaks down.
⚠️ Attention: Keep the spare key in a safe place, but not in the car. If you leave the only working key inside the car and lose it, calling a tow truck and opening it will cost significantly more than making a second duplicate in advance.