Replacing the battery in a Toyota Rav4 key

The energy source for both options is a 3 Volt battery. From time to time, replacing the battery in the Toyota Rav 4 key is mandatory. Usually it lasts for a year. But, depending on operating conditions, this period may be shorter.

The manufacturer recommends that when the first signs of the key malfunction appear, replace the battery as quickly as possible. You should also be careful if, when you press any button on the key fob, the LED “does not blink” or lights up very dimly, and the message “key battery is low” appears on the display in the car.

An important element of a car is the battery.

What to do

The most unpleasant moment is the complete discharge of the battery. If the battery is completely discharged, remote control of the Toyota Camry is no longer possible. Using the key fob you will not be able to open the doors or the tailgate in a timely manner. In addition, there will be serious problems with starting the car, because the anti-theft system will still work. It is not surprising that replacing the batteries in the Toyota Camry key becomes an important and urgent task. To replace it, a small flat screwdriver is traditionally used, with which you can complete the task in the shortest possible time.

Guide to replacing the battery in a Toyota car key

Is your Toyota car key fob not working? Most likely the battery in the key fob is dead and needs to be replaced. It seemed that there was nothing simpler in order to change the battery in the key. But as it turns out, many people do not know how to change the battery in a car key fob. Our web publication offers you detailed controls with photos that will help car owners change the battery in the car key without the help of others.

The most disgusting thing is that if the battery in the key fob runs out, then using remote access to the car you cannot open the doors, trunk, also depending on the Toyota model, you cannot even open the door with the key, because the car is armed. But even if you open the door with the key, in 90 percent of cases you cannot start the car, because in this case the anti-theft system will not be disabled (not in all models).

Our guide to replacing the battery in Toyota key fobs has been prepared specifically for owners of the following Toyota car models: 2003-2009 Toyota 4Runner (pictured as an example) and 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 , 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2021 - model range Camry, Corolla, Avalon, Solara, Celica, Cressida, Matrix, MR2, Supra, Tercel, Paseo, Prius, Sera, Starlet, Venza, Yaris, Echo, FJ Cruiser, Highlander, Hilux, Land Cruiser, Previa, RAV4, Sequoia, Sienna, Tacoma, T-100, Tundra, Lexus IS, GS, SC, CT 200h, HS 250h, ES, LS, RX, GX , LX.

Tools needed to replace the battery:

Small flathead screwdriver.

Note. If your Toyota key fob still does not work after replacing the battery, then it may be useful for you to reprogram it for your car. From time to time, replacing the battery and other power parts of electrical electronic modules can lead to clearing the memory of electrical devices.

In order to program a new key fob, contact the management of your car or a car service center.

In order to make it easy for you to change the battery without the help of others, we offer you detailed annotations with photos, which, as an example, are made on a Toyota 4Runner key fob, which was produced from 2003 to 2009.

Toyota key fob buttons

Excitement button

Replacing the battery (CR2016 battery) in a Toyota key

Rapid replacement

batteries, available tools.

How to replace the battery in the key (remote) of TOYOTA RAV4 IV generation in 1 (one) minute

How to replace the battery

in
the key of TOYOTA
Avensis Verso, Celica, Corolla, Yaris, RAV4, Land Cruiser
replacement
.

Removing the ring from the keychain

In order to open a Toyota key fob, you must first remove it from the iron ring on which the key is held. The 2003 Toyota 4Runner key fob (pictured) has an unlock button, a lock button, and a trunk release button.

Opening the key fob

Stick a screwdriver

Opening the case

At the bottom of the key fob there is a special slot into which you can insert a flat-head screwdriver or a coin to open the remote control housing.

Opened key fob body

Remote control battery

Removing the old battery

After you have separated the key fob body, be careful, as the buttons may fall out of the remote control, because after opening the key fob there is nothing holding them.

Opening the case, you will see a battery: CR2016 or CR2032 (cell type “pill”). It needs to be changed. Depending on your model and year of manufacture of the car, you can replace the CR2016 battery with the latest CR2032 (may not be available in all car models, because some remote controls do not allow this due to their thickness).

What is the difference between these batteries? The CR2032 battery is twice as thick as the CR2016 and holds twice as much charge and longer. The diameter of the batteries is monotonous. Therefore, if your alarm remote allows the thickness of a CR2032 battery to be installed, then we recommend installing it specifically for you, instead of 2021.

In order to remove the battery from the key fob, you can use a small screwdriver to lift the battery on one side.

CR2016 battery in Toyota key fob

Installing a new battery

Keychain with the latest battery installed

After you have removed the key fob battery, you need to change it to the newest one.

Closing the key fob body

Battery replacement completed

Checking the operation of the remote control

To close the key fob, place the bottom part of the remote control on a flat surface, and press the top part on top. If you try to connect the parts by lifting them together, the internal parts of the remote control may fall out.

After snapping the two parts of the key fob together, test all the buttons to make sure everything works.

If the key fob still does not function, then you need to reprogram your remote control. To do this, contact a specialized technical center or do it yourself using the vehicle manual.

When to change the battery

The battery life in the key fob depends on the type of installed energy sources. If the key is equipped with rechargeable batteries, they will last 3-4 years. They need to be charged periodically. If the key fob contains regular batteries, then their service life is much shorter.

The service life of the batteries is individual and depends on how often the owner uses the car, opens, closes, and starts it. It is recommended to use the key fob only in the immediate vicinity of the car. This way, less power is wasted, which extends the life of the battery.

The Toyota Land Cruiser “Keyless Go System” notifies the driver that the battery in the key is low and that it needs to be replaced.

A dead battery in a key fob is often a problem that takes drivers by surprise. They think there is still time for a replacement, but in reality there is none left. Because the key does not work, the owner cannot either lock the car or get inside and start it. In this case, you need to replace the battery in the key on a Toyota Prado 150 or TLK 200.

If the battery is discharged and there is no way to change it, then you can try several ways to temporarily bring the battery back to life:

lightly tap it on something hard;
press the edges of the battery with pliers, a chair leg or other object, thus activating the energy reserves that remain in it without harming the case;
if there is nothing suitable at hand, then you can use your teeth to press the ends of the body;
resuscitation of the battery with a short-term charge from the battery;
warm up the battery a little by friction (on trousers, seat, etc.).

If the key fob is powered by a battery, then any attempt to restore its functionality independently using “folk” methods will lead to its breakdown.

1. Open the hood and use a flat-head screwdriver to remove the four clips securing the plastic lining of the hood trim.

2. Raise the bar slightly up and gain access to the bolt securing the battery bar.

3. Unscrew the two bolts securing the battery bracket using a wrench and a ten-point socket.

4. Now remove the terminals. Loosen the nut securing the negative terminal and remove it.

5. Open the protective cap of the terminal with the plus sign, loosen the fastening nut and remove.

Important rules for using the key fob

Replacing the battery in the latest generation Toyota Rav 4 key does not require special tools or skills. However, precautions should be observed during daily use, which are recommended by the manufacturer.

Don't press the buttons too hard.
Observe the temperature conditions for storing the key.
Do not allow moisture to get inside the case - it is not sealed.
Avoid mechanical shocks to the key fob body.

The manufacturer provides for the use of up to 5 keys in cars with an intelligent access system and 3 keys for cars with a cylindrical lock configuration.

Step-by-step replacement of the battery in the Toyota Rav 4 key

1. Use a flat-head screwdriver to pry out the key in the place shown in the photo below.

2. Use a flat-head screwdriver to dig up and remove the key tablet.

Two halves of a key and a tablet

3. Using a coin, we pick out and divide the key tablet into two parts.

After opening the tablet you will see a battery.

4. We take out the battery with a flat screwdriver and change it.

5. We begin assembly. Take the other part of the tablet and snap it into place.

6. Insert and snap the tablet into the part of the key with the buttons.

7. Snap the other part of the key and the work is finished.

Replacement procedure

How to change the battery in the Rav 4 key? To do this, purchase a CR2032 battery in advance. The next procedure is as follows:

Press the PUSH button and remove the tip;
Use a flathead screwdriver or a key blade and, inserting it into the hole from which it was removed, lightly split the keychain into two halves.

Do not try to insert the metal tip deeply. Inside the key there is a board with installed radio elements, which can be easily damaged if you are careless.

After removing the upper part of the case, it is necessary to dismantle the protective plastic element covering the power source.
Use a narrow screwdriver to pry up the fastening element on both sides.
Remove the battery.
Install a new power supply.

Instructions

So, how do you replace the battery in your key?

To carry out the procedure, you will need a car ignition key, a new battery, a screwdriver, and a paper clip.

At the very beginning, you should open the key using a suitable screwdriver. It is best to choose the right size, as otherwise the plastic key may become deformed.
The key fob is best opened carefully, moving clockwise. With the right approach, the case will definitely open.
Another building will be visible inside. This is where the battery is hidden. After the housing is opened, the main replacement stage can be carried out. In this case, the fastening of the two parts of the second body is held on by two latches, so they need to be opened using a paper clip or fingernails.
Now you need to pry the battery up and pull it out. A spring mechanism is used to secure it. Now the battery can be changed.
The assembly process is carried out in reverse order.

How to open a Toyota RAV key fob

In this article, auto mechanic Alexey Bakulin communicates with readers on the topic “How to open a Toyota Rav key fob?”

The keys used on Toyota Rav 4 differ in appearance and functionality. The first generations of the car have a cylindrical remote control, while the latest ones have an electronic key with an intelligent system.

The energy source for both options is a 3 Volt battery. From time to time, replacing the battery in the Toyota Rav 4 key is mandatory. Usually it lasts for a year.

But, depending on operating conditions, this period may be shorter.

Don't press the buttons too hard.
Observe the temperature conditions for storing the key.
Do not allow moisture to get inside the case - it is not sealed.
Avoid mechanical shocks to the key fob body.

The manufacturer provides for the use of up to 5 keys in cars with an intelligent access system and 3 keys for cars with a cylindrical lock configuration.

How to change the battery in the Rav 4 key? To do this, purchase a CR2032 battery in advance. The next procedure is as follows:

Press the PUSH button and remove the tip;
Use a flathead screwdriver or a key blade and, inserting it into the hole from which it was removed, lightly split the keychain into two halves.

Do not try to insert the metal tip deeply. Inside the key there is a board with installed radio elements, which can be easily damaged if you are careless.

If possible, before changing the battery in the Toyota Rav 4 key fob, measure its voltage. On a high-quality battery, the measuring device should show a voltage of at least 3.2 Volts. This research will not take much time, but will guarantee the installation of a fresh element.

If the material was interesting or useful for you, publish it on your social network page:

Difficulty of performing the work:

Don't press the buttons too hard.
Observe the temperature conditions for storing the key.
Do not allow moisture to get inside the case - it is not sealed.
Avoid mechanical shocks to the key fob body.

The manufacturer provides for the use of up to 5 keys in cars with an intelligent access system and 3 keys for cars with a cylindrical lock configuration.

How to change the battery in the Rav 4 key? To do this, purchase a CR2032 battery in advance. The next procedure is as follows:

Press the PUSH button and remove the tip;
Use a flathead screwdriver or a key blade and, inserting it into the hole from which it was removed, lightly split the keychain into two halves.

Do not try to insert the metal tip deeply. Inside the key there is a board with installed radio elements, which can be easily damaged if you are careless.

After removing the upper part of the case, it is necessary to dismantle the protective plastic element covering the power source.

Use a narrow screwdriver to pry up the fastening element on both sides.

Remove the battery.

Install a new power supply.

If the material was interesting or useful for you, publish it on your social network page:

1. Use a flat-head screwdriver to pry out the key in the place shown in the photo below.

2. Use a flat-head screwdriver to dig up and remove the key tablet.

3. Using a coin, we pick out and divide the key tablet into two parts.

4. We take out the battery with a flat screwdriver and change it.

5. We begin assembly. Take the other part of the tablet and snap it into place.

6. Insert and snap the tablet into the part of the key with the buttons.

7. Snap the other part of the key and the work is finished.

Device and appearance

Housings and heads are made of hard plastic that can withstand mechanical stress. Unfortunately, only a few hulls can withstand exposure to water, and it is best to check with the manufacturer for this information before purchasing. If you pick it up, you will see the following on it:

First of all, the eyelet for the keychain is noticeable. In all versions it is large enough and allows you to hook onto a thick ring of a keychain or cord;
Next, you will notice control buttons. At least one button is the immobilizer button. Typically, the immobilizer has two buttons - “close” and “open”. There are also door control buttons here. Usually there are two of them - doors on the left, doors on the right. Pressing any of these buttons opens the trunk. There may be a separate button for the trunk;
if it is an electronic remote control with a retractable key for the lock, there is a lever. If you pull on it, it will come out and you can use it to start the car. On a case without a retractable key, this lever is not present; the ignition switch with a chip is carried separately on a bundle. Often the retractable key is paired with an eyelet for the key fob, and to remove it you need to press a small button on the case;
Upon further inspection, we will notice a small cut on any body. This is what we need in order to insert the element.

Depending on the wishes of the owner, the car can be equipped with an additional alarm system, and additional anti-theft devices and locks can be installed. They can be controlled from a separate remote control. But you can reprogram your electronic chip when installing an alarm system so that the immobilizer also turns off the alarm and additional anti-theft devices.

Checking the battery

To measure the battery charge level, do not rely on standard on-board computers.

Their readings are unreliable, since the measurement is not carried out by the battery, but through the connecting wires, which is accompanied by energy losses.

To reliably determine the voltage level on the battery, use a multimeter. The device is designed for measuring electrical quantities.

At the same time, buy a digital multimeter to get clear voltage readings. You will also need to diagnose the battery while the engine is running and at rest.

Diagnostics with the engine running

Initially, we start the engine and measure the voltage on the battery with all electrical appliances turned off . To do this, you will need to place one contact of the multimeter against the positive terminal, and the second against the negative terminal. The optimal voltage is between 13.5 and 14 Volts .

In this case, situations may occur when, for approximately ten minutes after starting the engine, an increased voltage is noted - 14.2 V. This is due to a slight decrease in charge during battery inactivity, especially at low temperatures. This phenomenon is normal.

If after measurement the result is in the range from 13 to 13.4 V , you will need to check the functionality of the generator, as well as the absence of oxide on the battery terminals .

The main factor indicating a battery malfunction will be a voltage level below 12.8 V, provided that the entire electrical load of the vehicle is turned on.

How to charge the battery

Initially set the voltage level for which the battery is designed. This can be 6, 12, 24 and 48 V. The most common is 12 V. In the future, it is necessary to clarify the battery capacity .

The characteristics of the charger will depend on these factors. Thus, maintenance-free batteries are charged with a rated current of no more than 1/20 of the battery capacity . If 50 A*h, then the charging current is 2.5 A , and for 60 A*h - 3 A.

According to most of the technical literature, it takes fifteen hours to fully charge the battery, provided that the charging current is set to 1/10 of the capacity . Accordingly, for maintenance-free batteries, the charging period doubles, since less current is used and amounts to 30 hours . These data are given for completely discharged devices. At the same time, the greater the initial charge of the battery, the less time is needed to completely replenish the capacity.

Tips for choosing

The most important parameter when choosing a battery is its size. It should be taken into account that the seats of Toyota Rav 4 of different trim levels are different.

A special feature of the battery mounting in the Toyota Rav 4 is that the bottom side is not used. The battery is secured with an upper clamping bar. Therefore, when purchasing, it is not so important to pay attention to the presence or absence of a side.

When choosing a battery, you should look at its capacity. It should be comparable to the value of the original battery. In this case, a slight deviation up or down is allowed.

An important criterion is the starting current. It determines how intensely the starter rotates the engine. The higher the starting current, the better, but high values have a significant impact on cost.

How to extend battery life?

Measures for proper battery maintenance directly depend on its type. They can be low -maintenance or maintenance-free . The former require periodic checking of the level and density of the electrolyte, approximately every six months.

To extend the life of any type of battery, the following recommendations should be followed:

Avoid situations of using a discharged battery, especially at low temperatures. This is due to the fact that in winter more electricity is consumed, which goes to operating headlights, heating windows and seats, stove, etc. During short trips (less than 10 km), the battery simply does not have time to gain the required charge.

Therefore, before stopping the engine in a parking lot, disconnect all electrical loads and leave the engine running for a few minutes.

When starting an internal combustion engine in cold weather, limit the starter operating time to 10 to 15 seconds . If during this time the engine does not start, try again after a pause. It is first recommended to warm up the battery by turning on the high beams for 20-30 seconds . Also, to reduce the load on the starter, it is necessary to depress the clutch to disengage the transmission gears at the moment of starting.

Keep the terminals and battery case clean.

Periodically check the reliability of the battery fastening. Otherwise, the energy storage device vibrates strongly, which leads to failure.

Periodically charge the battery:

in winter - once every two months;

in summer - once a quarter.

Battery for Rav 4

When choosing a new battery for Toyota Rav 4, consider:

Japanese developers use the JIS (Asian) standard;
Rav 4 cars of all generations are equipped with a battery with reverse polarity, which means the positive terminal is located on the right side .

Rav 4 1st and 2nd generations (1994 – 2000, 2000 – 2005)

Toyota Rav 4 of the first two generations with gasoline engines are equipped with a battery with the following characteristics:

capacity – 45 Ah ;
starting current – 330 A ;
Dimensions – 238x129x225 mm .

The battery is installed near the right wing of the car, in the area of the engine shield. As an analogue, a 60 A*h , the dimensions of which ( 242x175x190 mm ) allow installation.

Rav 4 3rd and 4th generations (2005 – 2013, 2013 – 2019)

Most of the gasoline Rav 4 3rd and 4th generations are equipped with batteries with a capacity of 60 Ah , having dimensions of 230x175x225 mm . But for some configurations, batteries ( 260x175x225 mm ) with an installed capacity of 70 Ah .

For Rav 4 models with diesel engines, regardless of generation, it is possible to install a JIS standard battery with a capacity of 90-100 Ah.

In this case, the dimensions are 306x175x222 mm . The car comes from the factory with a battery made in Japan, Furukawa Battery . Its capacity is 90 A*h , and the starting current is 735 A.

Maintaining an identical temperature of the electrolyte in Rav 4 battery banks is ensured by uniform heat transfer through the protective housing. The battery is secured with an upper clamping bar.

Battery cost

Japanese companies that produce batteries and supply them for Toyota Rav 4 have practically not mastered the domestic market. Therefore, buying an original battery is very difficult and expensive. The cost often exceeds 8,000 rubles. Therefore, experienced drivers believe that it is better to purchase an analogue of the factory battery. The table below presents a list of brands that have proven themselves well as an alternative to the original battery for the Toyota Rav 4.

Table - Estimated cost of batteries for Toyota Rav 4

Manufacturer	Cost, ruble
Bosch	3800-5100
Varta	3900-5700
Yuasa	400-6800
Exide	4800-7200
Energizer	4900-7900

Battery replacement

To replace the battery on Rav 4:

Using a 10mm wrench, loosen the tightening bolts on the negative and positive terminals and remove.
Using the same wrench, unscrew the nuts securing the clamping bar.
The bar is dismantled.
The old battery is removed from the seat.

The process of installing a new battery is carried out in reverse order.

As a result of replacing the battery on the Rav 4, information is reset in the on-board computer.

They are restored automatically after several hours after voltage is applied. Sometimes the radio is blocked. To restore functionality, you will need to enter an activation code .