In short, the 12-volt starting battery in a 2018 Jeep Grand Cherokee is mounted in the engine compartment on the passenger side, tucked into a battery tray behind the right front wheel well. Exact placement can vary slightly by trim or optional equipment, but this is the typical location.
Locating the battery in the engine bay
To locate it in your specific Grand Cherokee, follow these steps:
- Open the hood and inspect the engine bay on the passenger side, toward the front of the vehicle.
- Look for a rectangular battery tray with a hold-down clamp and a red protective cap on the positive terminal.
- Remove any protective engine covers or intake ducts if necessary to gain access to the battery.
- Check nearby markings or the fuse/relay box for confirmation that this is the starting battery.
These steps will help you locate the battery and prepare for testing, replacement, or jump-start procedures.
Notes on model variations and safety
Because configurations can vary by trim and options, check these notes if you're planning work on the battery:
- Consult the owner's manual for the exact battery location for your VIN and trim.
- Be mindful of safety: disconnecting the negative terminal first, avoiding metal jewelry, and keeping sparks away from the battery area.
By following these safety and configuration notes, you reduce risk and ensure you locate the correct battery for your vehicle.
Summary
The 2018 Jeep Grand Cherokee generally places the 12-volt battery in the engine bay on the passenger side, behind the right front wheel well. Verify the exact location for your specific trim in the owner's manual and follow proper safety steps when inspecting or replacing the battery.


