There’s usually a mechanical key hiding inside the key fob for cars with push-button start systems, so you can still unlock your door if the car battery or your fob battery runs out of juice.

Problems with keyless fobs appear to be an increasingly common problem for motorists as technology has shifted the market away from the traditional key and lock.

Like anything else relying on a battery, you car key fob can die—often at the worst time. Thankfully, these batteries are easy to replace.

How much for a car key repair? Car key fob replacement costs have been decried by numerous drivers. Many have accused auto dealerships of exorbitantly pricing the substitution costs of these fobs.