The question is which coin the shell in your hand was built around. The cell usually fitted is a CR2032 in most push-button smart keys from the 2010s onward, or a CR2016 in many older remote-head and flip keys, and the key is a smart key, flip key, or remote-head key. People who searched what battery does a toyota key fob take still have one rule to follow. Read the stamp on the old cell, because that stamp wins.
Read the stamp before choosing the coin
The coin already in the shell is the buying guide for choosing the coin.
CR1632 is reported for choosing the coin on some mid-generation smart keys, including certain Prius shells.
The CR2016 you might buy for choosing the coin is 20 mm across and 1.6 mm thick.
Every one of those coins, in the case of choosing the coin, is a 3-volt lithium cell.
A rechargeable LIR2032 does not belong in the shell for choosing the coin.
A mark molded into the plastic wins over habit during choosing the coin.
Right-hand drive does not change the coin you buy for choosing the coin.
Touching a dead smart key to the start button is a separate backup, not the shopping step in choosing the coin.
Close the cover fully before you test choosing the coin from outside the car.
A brochure can list two keys for one car, and choosing the coin still follows the shell you are holding.
If the shell in choosing the coin is a new undocumented shape, the pry method is not confirmed.
A separate keychain remote on an older car can carry a different stamp from a remote-head key of the same year.
US LE and XLE describe a trim split in the United States only.
Match the cell for choosing the coin
A push-button smart key from the 2010s onward usually takes a CR2032 when you are doing choosing the coin.
If two reliable notes disagree about choosing the coin, the page says they disagree.
The CR2025 you might buy for choosing the coin is 20 mm across and 2.5 mm thick.
Same voltage does not make the coins interchangeable for choosing the coin.
Almost every Toyota fob takes one cell, and choosing the coin is not a two-cell case.
A battery-only swap for choosing the coin does not require programming.
Base grades often kept a metal key after a higher grade moved on, which still matters for choosing the coin.
Keep the spare coin for choosing the coin in a cool drawer, not on a dashboard.
A gap at the cover, during choosing the coin, means the coin is too thick or a clip missed.
Japan, Australia, Europe, and the US can print different grade names around choosing the coin.
A bZ4X-style shell is not opened with an older Camry method during choosing the coin.
CR2025 is the same 20 mm width with a 2.5 mm thickness, and only some older compact remotes use it.
A Hilux Workmate and a Hilux Rogue are the kind of grade pair that can be two different cells in one model year.
Keep the wrong parts out of choosing the coin
An older remote-head key or flip key usually takes a CR2016 when you are doing choosing the coin.
CR1616 is uncommon for choosing the coin and is not the default older Toyota cell.
A CR1632 reported for choosing the coin is 16 mm across and 3.2 mm thick.
A CR2450 is the wrong coin for choosing the coin.
This site does not invent a two-battery fob for choosing the coin.
After choosing the coin, lock the car once from outside and then unlock it once.
Grade names used for choosing the coin belong to that market, not to a borrowed US list.
A pharmacy coin and a dealer coin are the same job for choosing the coin when the stamp matches.
Do not stack a second coin as a shortcut for choosing the coin.
The work of choosing the coin stays a cell swap on a hybrid.
If the stamped coin is seated and choosing the coin still fails, the fob has failed. Stop.
Certain Prius shells are the case where CR1632 is reported and the notes do not agree.
Close the shell after choosing the coin
CR2025 appears for choosing the coin only on some older compact remotes.
The CR2032 you might buy for choosing the coin is 20 mm across and 3.2 mm thick.
A CR1616, uncommon for choosing the coin, is 16 mm across and 1.6 mm thick.
An A23 battery is the wrong shape for choosing the coin.
Plus, while you handle choosing the coin, is the flat branded face unless the shell mark disagrees.
A hybrid badge does not change the coin you buy for choosing the coin.
A never-paired extra fob is outside choosing the coin. A dealer or licensed locksmith does that work.
A date code on the blister for choosing the coin tells you the coin is fresh. It does not choose the size.
Do not slip foil under the coin as a shortcut for choosing the coin.
The work of choosing the coin stays a cell swap on a right-hand-drive car.
Write the stamp on the spare sleeve when you finish choosing the coin.
Do not bring a CR1616 habit over from another brand and call it the Toyota default.
Pages that sit beside choosing the coin
Continue with the page Toyota Key Fob CR2032.
Continue with the write-up on Toyota Key Fob CR2016.
Continue with notes for Toyota Size Chart.
Continue with Toyota Smart Key vs Flip Key Battery.
Continue with the page How to Open a Toyota Key Fob.
Questions answered only with the facts above
Which two cells cover most Toyota fobs?
A CR2032 for most later smart keys, and a CR2016 for many older remote-head and flip keys. The stamp wins.
Are the coin sizes interchangeable?
No. Same voltage does not mean the same thickness or diameter.
Does a hybrid change the coin?
No. A hybrid badge does not change the coin cell.