Replacing the battery in a Nissan Murano Z51 key: instructions with photos and videos

Remote control key Nissan Murano Z51 (2015–2023 model year) is not just a door opener, but also a complex electronic device that requires regular maintenance. One of the most common problems that owners face is low battery in key fob. The symptoms are familiar to many: the car stops responding to signals the first time, the range of operation is reduced to several meters, and sometimes the key refuses to work at all. In such cases, do not rush to go to the service center - you can replace the battery yourself in 10–15 minutes.

In this article you will find step-by-step instructions with photos, a video guide, a list of suitable batteries (including analogues), as well as answers to frequently asked questions: what to do if the key does not work after replacement, how to reset errors on the dashboard, and whether it is possible to use rechargeable batteries. We will also look into a unique feature of the Murano Z51 keys is the presence of two types of cases (pre-restyling and restyling 2019), which are disassembled differently.

Signs of a low battery in a Nissan Murano Z51 key

The first signals that the battery in the key fob requires replacement often go unnoticed. However, ignoring problems can lead to a complete loss of communication between the key and the car. Here main symptoms:

• 🔋 Reduced range: the key only works in the immediate vicinity of the car (less than 2–3 meters).
• 🔄 Requires multiple clicks: You have to press the button 2-3 times to open or close the doors.
• 🚨 Intermittent operation: Signals are delayed or the key refuses to respond to commands.
• 🔴 Indication on the dashboard: A warning appears on the on-board computer screen Key Battery Low (on models with display).
• 🔑 Mechanical opening failure: even when the key is inserted into the ignition switch, the car may not recognize it (typical for systems Nissan Intelligent Key).

If you notice at least two of the listed signs, it's time to check the battery. B Murano Z51 battery type is used CR2032 (3 Volts), but depending on the year of manufacture and configuration, other options may be found. More details about them in the next section.

⚠️ Attention: If the key stops working completely, do not try to “wake it up” by hitting it or using heat. This can damage the board and lead to the need to purchase a new key fob (cost from 8,000 to 15,000 rubles).

Which battery should I choose for my Nissan Murano Z51 key?

In most keys Nissan Murano Z51 (2015–2023) standard lithium battery installed CR2032 with voltage 3V. However, in some modifications (for example, in keys with backlit buttons or in restyled versions of 2019+), alternative elements may be used:

Key type	Year of manufacture	Battery type	Analogues	Service life
Standard (no backlight)	2015–2018	CR2032	DL2032, ECR2032, BR2032	2–3 years
With backlit buttons	2019–2023	CR2026	DL2026, ECR2026	1.5–2 years
Intelligent Key (keyless access)	2017–2023	CR2032 (reinforced)	Panasonic CR2032P, Maxell CR2032	3–4 years

When choosing a battery, pay attention to brand and quality. Cheap analogues (for example, nameless Chinese elements) may leak or quickly discharge. Recommended manufacturers:

• 🔋 Panasonic — reliable, long service life, minimal risk of leakage.
• 🔋 Duracell — high capacity, suitable for illuminated keys.
• 🔋 Maxell — optimal price/quality ratio.
• 🔋 Energizer - a good option for regions with cold climates (resistant to low temperatures).

Avoid rechargeable batteries (eg ML2032 or LIR2032). They have a lower voltage (2.4V instead of 3V), which can lead to unstable operation of the key or errors in the system Nissan Intelligent Key.

Tools for replacing the battery in the Murano Z51 key

You don't need a professional tool to replace the battery, but some tools will make the process much easier. Here minimum set:

• 🔧 Flat head screwdriver (preferably with a thin tip) - to separate the body.
• 🔪 Plastic pick or credit card - so as not to scratch the lid.
• 🧲 Small magnet - will help you remove the battery if it is stuck.
• 📸 Smartphone - to photograph the location of the board (in case you have to assemble it in reverse order).
• 🧴 Alcohol wipes - to clean contacts from oxidation.

If you have a key with metal body (typical for versions before 2018), may be required TORX T5 or TORX T6 to unscrew the screw. In most cases there is only one screw, but in some modifications there are two.

⚠️ Attention: Do not use a knife or other sharp objects to disassemble the key. This can damage the latches of the case, and it will no longer close tightly, which will lead to moisture ingress and failure of the board.

Step-by-step instructions: how to disassemble the key and replace the battery

The replacement process differs depending on the type of housing. Below are instructions for two most common options:

Option 1: Key with plastic housing (2015–2018)

This type of key does not have screws, so it is disassembled by separating the two halves. Proceed carefully:

1. Insert a flathead screwdriver or pick into gap between the top and bottom of the case (from the buttons side).
2. Carefully rotate the tool to release the first latch. Start at the corner where the logo is located Nissan.
3. Run the screwdriver along the seam, releasing the remaining latches one by one. There are 4–5 of them in total.
4. After disconnecting the housing, remove board with buttons and carefully set it aside.
5. Pry off the battery with a screwdriver or magnet and replace it with a new one, observing polarity (the plus should be on top).

Option 2: Key with metal body (2019–2023)

In restyled versions Murano Z51 the key may have a metal back cover secured with a screw. For parsing:

1. Locate the screw underneath TORX T5 or TORX T6 on the back of the key (next to the key fob ring).
2. Carefully unscrew it and set it aside (don't lose it!).
3. Pry off the metal cover with a flathead screwdriver. It should come off without effort.
4. Remove the battery, noting its location. These keys often use CR2026.
5. Install a new battery and reassemble the key in reverse order.

After replacing, check the operation of the key: press the buttons LOCK And UNLOCK several times. If the machine does not respond, try reboot the system — remove the key from the ignition, close all doors and wait 1–2 minutes.

What should I do if the key does not work after replacing the battery?

If the key does not respond, check:

1. Battery polarity (plus should be on top).

2. The tightness of the contacts (sometimes they oxidize - wipe with alcohol).

3. Integrity of the board (are there any cracks or peeled elements).

4. Synchronization with the car (in rare cases, reprogramming via the diagnostic connector is required).

Mistakes when replacing batteries and how to avoid them

Even such a simple procedure as replacing a battery can turn into problems if you make mistakes. Here the most common mistakes and ways to prevent them:

• 🔧 Using the wrong battery: for example, installation CR2026 instead of CR2032 will lead to the key working unstable or not turning on at all. Always check the markings on the old battery.
• 🔄 Wrong polarity: if you confuse “+” and “–”, the key will not work. In most cases, the plus should be facing up (toward the buttons).
• 💧 Ingress of moisture or dirt: Disassemble the key on a clean surface and do not touch the contacts with your fingers (grease and sweat impair conductivity).
• 🔨 Damage to case latches: If you press too hard with a screwdriver, the plastic may crack. Use a plastic pick.
• 🔋 Ignoring Oxidation: if there is a white or green coating on the contacts, it must be removed with alcohol or an eraser.

Another common mistake is loose closure of the case. If after assembly the key is loose or the cover does not lock, check:

• Are the latches seated correctly (sometimes they get jammed).
• Are there any foreign objects inside (for example, fragments of an old battery).
• Is the screw (in metal keys) tightened?

How to reset the "Key Battery Low" error on the dashboard?

After replacing the battery on the dashboard Nissan Murano Z51 a warning may remain Key Battery Low. In most cases, it disappears on its own after 1-2 cycles of turning the ignition on/off. If the message does not disappear, try the following methods:

1. Reboot the system:
   1. Insert the key into the ignition.
   2. Turn it to position ON (do not start the engine).
   3. Wait 10 seconds, then return the key to OFF.
   4. Remove the key and repeat the procedure 2-3 times.
2. Reset via on-board computer menu (for versions with display):

   Настройки → Maintenance → Reset → Key Battery Warning

3. Disabling the car battery (extreme method):
   1. Remove the negative terminal from the battery for 5–10 minutes.
   2. Plug it back in and start the car.

   ⚠️ Attention: This method will reset all settings (radio, clock, climate control), so use it only if other methods have failed.

If the error remains on, the problem may not be with the battery, but with the key board malfunction or the receiver antenna in the car. In this case, diagnostics at the service center will be required.

Frequently asked questions about replacing the battery in the Nissan Murano Z51 key

Can I use rechargeable batteries (eg LIR2032)?

No, not recommended. Rechargeable cells have a voltage of 3.6V–3.7V when charged and 2.4V–2.7V when discharged, whereas the original CR2032 Stably produces 3V. This may lead to unstable operation of the key or errors in the system Intelligent Key.

How much does it cost to replace a battery at a service center?

At official dealerships Nissan For battery replacement they charge from 500 to 1,500 rubles (depending on the region). In unofficial services the price is usually lower - 300–800 rubles. However, the procedure is so simple that it is more economical to do it yourself.

How to check if the key works after replacing the battery?

After installing a new battery:

1. Click the button LOCK or UNLOCK at a distance of 1–2 meters from the car.
2. Listen to the sound of the central locking (should be clear, without delays).
3. Check the indication on the key (if there is an LED, it should blink when pressed).
4. Insert the key into the ignition and turn it - the car should recognize it the first time.

If at least one of the points is not fulfilled, it means that the battery is installed incorrectly or there is a problem with the board.

What should I do if, after replacing the battery, the key does not sync with the car?

In rare cases, the key may need to be reprogrammed. To do this:

1. Get into the car and close all the doors.
2. Insert the key into the ignition and turn it to position ON 6 times in a row (with an interval of no more than 2 seconds).
3. After the 6th turn, remove the key - the alarm should beep, confirming the reset.
4. Put the key back in and start the car. Synchronization should be restored.

If this does not help, contact the service to diagnose the immobilizer.

Is it possible to replace the battery in a key with a bracelet (keyless entry)?

Yes, the process is similar, but in such keys it is often used CR2026 instead of CR2032. The main difference is that the board is more fragile, so you need to disassemble the case very carefully. If after replacing the bracelet does not work, try moving it closer to the door handle (in Murano Z51 The receiver antenna is located there).