Infiniti Q70 key fob battery
1 of the 6 model years listed for the Infiniti Q70 have a proven battery. The most common answer is CR2025. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.
- 2014-2017Smart key
Not confirmed yet
- 2018Smart key
CR2025
Owner's manual: manua.ls (checked Nov 1, 2026)
Manual text: “Recommended battery: CR2025 or equivalent”
Find CR2025 on Amazon - 2019Smart key
Not confirmed yet
Changing the battery
Smart key (push-button start)
- Find the small release on the edge or back of the fob and hold it while you pull out the metal emergency key.
- Look inside the empty key slot for a notch. Put the tip of the metal key or a small flat screwdriver wrapped in tape there and twist gently until the shell splits.
- Note which side of the old coin cell faces up (usually the side with the writing), lift it out with a plastic tool, and press the new one in the same way.
- Close the case until it clicks all the way round, put the metal key back, then try the buttons and a push-button start.
Infiniti Intelligent Keys normally hold a mechanical key behind a release knob; the slot behind it is where you pry.
A CR2025 is 20 mm across and 2.5 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.