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How to Replace the Key Battery of the Acura NSX

Model: Acura Acura Various
Part: Key

In this guide for all Acura NSX owners (1991-1993), discover the steps to replace the batteries inside the key yourself. First, obtain a small cross-head screwdriver and unscrew the two screws located on the rear cover, then remove it. Next, use the same screwdriver to remove both batteries (or just the exhausted one) and replace them with new ones (model CR1220). Finally, correctly reassemble the rear cover of the key and you're done.

Updated on 23 July 2026 by ScegliAuto

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