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Toyota & Lexus key fob battery
Recent Toyota smart keys mostly use a CR2032; many smart keys from the 2010s use a CR1632, and older remote head keys often use a CR2016. Most Lexus smart keys use a CR2032; several older smart keys use a CR1632. Thin card keys use other sizes.
| Battery | Used in | Size | Capacity |
|---|---|---|---|
| CR2032 | Toyota (most common); Lexus (most common) | 20 mm × 3.2 mm | ≈ 225 mAh |
| CR1632 | Toyota (also used); Lexus (also used) | 16 mm × 3.2 mm | ≈ 140 mAh |
| CR2016 | Toyota (older models) | 20 mm × 1.6 mm | ≈ 90 mAh |
Toyota key fobs
Recent Toyota smart keys mostly use a CR2032; many smart keys from the 2010s use a CR1632, and older remote head keys often use a CR2016.
Dead fob? Hold the fob, Toyota emblem first, against the push-button start and press the button with your foot on the brake.
Lexus key fobs
Most Lexus smart keys use a CR2032; several older smart keys use a CR1632. Thin card keys use other sizes.
Dead fob? Touch the Lexus emblem side of the fob to the start button, then press it with your foot on the brake.
Not sure which you have? See CR2032 vs CR2016: same look, different size.
To change it: release and pull out the metal key, twist its tip in the seam to split the case, and fit the new cell the same way up. Step-by-step guide.
Also mainly CR2032: Honda, Acura, Chevrolet, GMC.
Key types change between model years; the code on your old battery is final.