2013 Jeep Key Battery. Remove the key by moving. locking hatch to the left side first. The contacts on the battery can loosen over time and require re-soldering.

Jeep Key Fob Battery Replacement | Car Interior Design
Jeep Key Fob Battery Replacement | Car Interior Design (Elsie Blair)
Remove the key by moving. locking hatch to the left side first. I think it is all part of the SKREEM module (Sentry Key and Remote Entry Module or some such thing). Batteries tend to work consistently well right up to the time they fail, and it's hard to tell when one is on the way out.

To replace the battery, follow these steps: Insert a small flathead screwdriver into the seam near the keyring mount.

Same process for most Dodge and Chrysler vehicles.

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Unlikely that the receiver is the issue. Check here for special coupons and promotions. If it is, I believe it is a little more involved and costly to replace.