How to Replace the Battery in a Hyundai Elantra Key Fob?

1 Answers
GrantLee
07/25/25 6:14am
Method for replacing the Hyundai Elantra key fob battery: First, remove the mechanical key. You will notice a seam in the middle of the plastic casing. Use a flathead screwdriver to pry it open, then take out the old battery and replace it with a new one, paying attention to the correct orientation of the positive and negative terminals. After replacing the battery, firmly press the two halves of the key fob back together until they snap into place. In terms of powertrain, the Volkswagen Elantra is equipped with a 1.6L engine and a 1.8L Nu engine. The 1.6L engine delivers a maximum power output of 127 horsepower and a maximum torque of 155Nm, while the 1.8L engine features the new Nu engine with a maximum power of 145 horsepower and a maximum torque of 175Nm.
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