Toyota RAV4 key fob battery
12 of the 31 model years listed for the Toyota RAV4 have a proven battery. The most common answer is CR2016. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.
- 1996-2005Remote (separate)
Not confirmed yet
- 1996-1997Unknown
Not confirmed yet
- 1998Mechanical key only (no factory wireless remote in manual)
Not confirmed yet
- 1998-2000Remote (separate, dealer-installed VIP RS3000 accessory)
Not confirmed yet
- 2001-2002Unknown
Not confirmed yet
- 2003Remote (wireless remote control transmitter)
CR2016
Owner's manual: manua.ls (checked Nov 1, 2026)
Manual text: “For replacement, use a CR2016 lithium battery or equivalent.”
Find CR2016 on Amazon - 2004-2005Unknown
Not confirmed yet
- 2006-2008Key-head remote
Not confirmed yet
- 2009Key-head remote
CR2016
FCC ID HYQ12BBYOwner's manual: manua.ls (checked Nov 1, 2026)
Manual text: “CR2016 (vehicles without smart key system)”
Find CR2016 on Amazon - 2009Smart key
CR1632
FCC ID HYQ14AABOwner's manual: manua.ls (checked Nov 1, 2026)
Manual text: “CR1632 (vehicles with smart key system)”
Find CR1632 on Amazon - 2010-2012Key-head remote
Not confirmed yet
- 2010-2012Smart key
Not confirmed yet
- 2013Key-head remote
CR2016
FCC ID HYQ12BDMTwo sites agree: americankeysupply.com and uhs-hardware.com (checked Nov 1, 2026)
Find CR2016 on Amazon - 2013Smart key
Not confirmed yet
- 2014Key-head remote
CR2016
FCC ID HYQ12BDPOwner's manual: manua.ls (checked Nov 1, 2026)
Manual text: “Lithium battery CR2016 (vehicles without a smart key system)”
Find CR2016 on Amazon - 2014Smart key
CR2032
FCC ID HYQ14FBAOwner's manual: manua.ls (checked Nov 1, 2026)
Manual text: “CR2032 (vehicles with a smart key system)”
Find CR2032 on Amazon - 2015Key-head remote
CR2016
FCC ID HYQ12BDMTwo sites agree: americankeysupply.com and uhs-hardware.com (checked Nov 1, 2026)
Find CR2016 on Amazon - 2015Smart key
Not confirmed yet
- 2016Key-head remote (wireless remote key)
CR2016
Owner's manual: trav4.net (checked Nov 1, 2026)
Find CR2016 on Amazon - 2016Smart key
CR2032
Owner's manual: trav4.net (checked Nov 1, 2026)
Find CR2032 on Amazon - 2017Key-head remote (wireless remote key)
CR2016
Two sites agree: uhs-hardware.com and americankeysupply.com (checked Nov 2, 2026)
Find CR2016 on Amazon - 2017-2018Smart key
CR2032
Two sites agree: uhs-hardware.com and bestkeysupply.com (checked Nov 2, 2026)
Find CR2032 on Amazon - 2018Key-head remote (wireless remote key)
CR2016
Owner's manual: trav4.net (checked Nov 1, 2026)
Find CR2016 on Amazon - 2019Smart key and wireless remote key (one battery listed)
CR2032
Owner's manual: trav4.net (checked Nov 1, 2026)
Find CR2032 on Amazon - 2020-2021Smart key and wireless remote key (one battery listed)
CR2032
Two sites agree: uhs-hardware.com and bestkeysupply.com (checked Nov 2, 2026)
Find CR2032 on Amazon - 2022-2025Smart key and wireless remote key (one battery listed)
Not confirmed yet
- 2026Smart key (electronic key)
CR2032
Owner's manual: manua.ls and amanuals.com (checked Nov 1, 2026)
Manual text: “Use a CR2032 lithium battery”
Find CR2032 on Amazon
Changing the battery
Separate remote fob
- A separate fob has no key blade inside, so it opens with nothing but a coin or a small screwdriver.
- Turn it over: some older fobs use one small screw, newer ones just clip. Pry at the seam once any screw is out.
- Lift the old coin cell out and press the new one in with matching orientation.
- Snap the case shut and watch for the lights to flash when you press lock at the car.
A CR2016 is 20 mm across and 1.6 mm thick. CR2032, CR2025 and CR2016 share the same width but not the same thickness, so a swap between them can leave a loose contact or a case that will not close.
Key with remote in the head
- The remote electronics sit in the plastic head of the key itself, so there is no separate fob to open.
- Find the seam around the head. Twist a coin or small flat screwdriver in the notch at the blade end or side until the halves part.
- The coin cell is usually under or on the back of a small board. Keep the rubber button pad in place while you swap the cell.
- Press the head together until it clicks and test the buttons. The transponder chip that lets the car start is separate from the battery, so starting should not change.
A CR2016 is 20 mm across and 1.6 mm thick. CR2032, CR2025 and CR2016 share the same width but not the same thickness, so a swap between them can leave a loose contact or a case that will not close.
Smart key (push-button start)
- Start by freeing the hidden metal key: there is a latch or slide on the case, and the blade comes out once it moves.
- Use the slot where the metal key sat. Twist, do not lever hard, and work along the seam until the halves separate.
- Before you take the old cell out, look at its face. Put the new cell in with the same side showing, and avoid touching both faces at once.
- Reassemble, refit the emergency key, and check that the car sees the fob when you press start.
On most Toyota smart keys the metal key slides out after you press a small release, and the case opens at the slot it leaves behind.
A CR1632 is 16 mm across and 3.2 mm thick. It is easy to confuse with the 20 mm CR20xx sizes, which will not fit.
A CR2032 is 20 mm across and 3.2 mm thick. CR2032, CR2025 and CR2016 share the same width but not the same thickness, so a swap between them can leave a loose contact or a case that will not close.
Coin cells are a choking and burn hazard for children. Store the spares in their original pack, out of reach.