Press button 1 while pulling key 2, then detach cover 3 using tab 4.
Remove the battery by pressing on one side (arrow A) and lifting it on the other (arrow B), then replace it, observing the polarity and the model indicated on the cover 3.
Reassemble in reverse order, then, while in close proximity to the vehicle, press one of the map buttons four times: the message will disappear the next time the engine is started.
Note: When replacing the battery, it is not recommended to touch the electronic unit and contacts of the Renault card.