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Jeep, Ram & Dodge key fob battery
Most Jeep fobs use a CR2032; some newer fobs use the larger CR2450. Most Ram key fobs use a CR2032; some newer fobs use a CR2450. Dodge and Chrysler fobs (the 'fobik') use a CR2032.
| Battery | Used in | Size | Capacity |
|---|---|---|---|
| CR2032 | Jeep (most common); Ram (most common); Dodge (most common) | 20 mm × 3.2 mm | ≈ 225 mAh |
| CR2450 | Jeep (also used); Ram (also used) | 24.5 mm × 5 mm | ≈ 620 mAh |
Jeep key fobs
Most Jeep fobs use a CR2032; some newer fobs use the larger CR2450.
Dead fob? Push the start button with the nose of the fob, with your foot on the brake.
Ram key fobs
Most Ram key fobs use a CR2032; some newer fobs use a CR2450.
Dead fob? Push the start button with the nose of the fob, with your foot on the brake.
Dodge key fobs
Dodge and Chrysler fobs (the 'fobik') use a CR2032.
Dead fob? Push the start button with the nose of the fob, with your foot on the brake.
Not sure which you have? See CR2032 vs CR2450: 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: Tesla, Toyota, Lexus, Honda.
Key types change between model years; the code on your old battery is final.