How to Jeep Key Fob Battery Replacement
If your Jeep’s key fob has stopped working properly, the issue likely comes down to a depleted battery that needs to be replaced. Like any remote or electronic device powered by a small coin-style battery, key fob transmitters eventually run out of juice (generally after 1-2 years of use). Replacing this battery on your own is a quick and simple fix to restore functionality.
This guide covers all the steps and information needed for DIY battery replacement in any Jeep key fob model. Have your Jeep manual on hand and a new CR2032 coin battery readily available.
How Long Should a Jeep Key Fob Battery Last
Jeep key fob batteries, while varying slightly by model and usage frequency, typically operate on an expected lifespan of 1-2 years before needing fresh power. The CR2032 lithium coin batteries most commonly used provide steady energy in a small form factor – ideal for compact wireless remotes designed for frequent lock/unlock transmitting necessities from your keychain.
Signs that your Jeep key battery needs attention include:
- Reduced transmitting range (need to be closer to the vehicle)
- Intermittent failures in locking or unlocking functions
- Warning message indicating low-key fob battery
Upon experiencing any of the above after about 12-24 months of ownership, you can test and validate it’s time for a replacement by using the steps ahead.
Before Replacing the Battery
To ensure a smooth key fob battery swap in your Jeep, complete the following preparations:
Determine Your Model
Your exact Jeep model name/number and model year on hand allow correct reference to the manufacturer service manual directions tailored to your vehicle. Variances in fob case openings occur amongst generations and sub-models in the Jeep brand.
Purchase Replacement CR2032 Battery
The CR2032-sized 3V lithium coin cells represent over 90% of batteries in modern Jeep key fobs. Have a fresh one available before opening your fob. Common options like Energizer or Duracell suffice.
Gather Small Screwdriver & Towel (Optional)
A basic eyeglasses-sized or similarly slim flathead screwdriver allows the necessary leverage for most users in popping open Jeep fob casings. Place a towel down to avoid battery or small part loss.
Removing the Case and Battery
With the model confirmed and the new battery ready comes battery removal. Remember – to pry gently to avoid casing cracks.
Steps vary across select generations:
Jeep Models from 2018+
- Insert flathead into slit along a plastic seam and twist outward
- Separate front and back casing body
- Use a screwdriver to circle and lift out the circuit board if still sticking.
- Remove the old CR2032 coin cell battery from the clips
[Diagram of key fob interior for recent models]
Jeep Models from 2010-2018
- Insert flathead into a groove on the side, pry upward
- Pull to disengage front and back covers
- Slide out interior frame/circuit board
- Push the battery out by tabs along the sides
[Interior parts diagram for this generation]
Avoid directly touching circuit boards to limit connector damage or static electrical discharge, regardless of model nuances.
Let the extracted battery sit outside the open fob for approximately 30 seconds before installing the new cell. This allows for a clean slate power transition.
Installing New CR2032 Battery
With most models, orient your new battery’s flat positive (+) side to match the (+) marking visible on the key fob’s inner frame or printed circuit board clips. Avoid touching the interior board/connections as the fresh cell clicks into the conductive battery slot.
Replacing the battery on a Jeep key fob is quick and easy once you open the casing. At the first sign of trouble with your wireless smart key’s locking/unlocking signal range or functionality, try swapping in a new CR2032 coin cell battery. This inexpensive restore often fixes common issues caused by a depleted battery.
When prying open your fob, don’t crack the plastic housing. Follow the proper precautions outlined for your Jeep’s model year. Most generations provide hassle-free access that makes DIY battery replacement frustration-free. If no significant wear or damage exists internally, the new cell should have your key fob working like new. So don’t wait until you have complete key fob failure by the door of your parked Jeep. Be proactive when problems arise for fast battery changing.