What does code 35 mean on the chevrolet spark?

When was Chevrolet Spark DIC displays code 35 it means brought the remote key battery need to be replaced. The key fob uses a CR 1620 battery. Using a small screwdriver remove the Phillips head screw on the backside of the fob. Carefully open the remote and remove the battery housing. Peel back the plastic film covering the battery, and pry the battery out. When installing a new battery make sure the negative side goes down and positive side is facing up. Replace the plastic film to cover the battery and position the battery housing to align with the correct buttons. Align the two halves of the remote housing and tighten the screw down.