TorqueStaff Report. This method is used to retrieve OBD I and OBD II diagnostic trouble codes from your YJ, TJ, XJ, ZJ, and early WJ Jeep models. Insert the key into the ignition. Turn the ignition On-Off-On-Off-On within 5 seconds. Record the 2-digit DTC as displayed by the flashing MIL. Replaceyour 2012 Jeep Grand Cherokee battery at AutoZone. Get Free Next Day Delivery for eligible orders, or select Same Day Pickup when you order online today! Positive Terminal Location: Top Right FrontNegative Terminal Location: Top Left FrontWidth: 6.94inCold Cranking Amperage: 900ATerminal Type: SAE - Type AHeight: Outof 3 Battery products for the 2012 Jeep Grand Cherokee, the most popular in our inventory are: DieHard Platinum AGM Battery: H7 Group Size, 850 CCA, 1000 CA, 140 Min Reserve Capacity, For High Electrical Demands. from $254.99. DieHard Platinum AGM Battery: H8 Group Size, 900 CCA, 1000 CA, 160 Min Reserve Capacity, For High Thebattery location in a Jeep Grand Cherokee can typically be found in the engine bay, but may be in the trunk, fender or inside of the vehicle. You may need to remove the air filter housing, a plastic engine cover or parts of the cowl to find the battery in your Grand Cherokee. 2012 Jeep Grand Cherokee Limited 5.7L V8. See all videos for 20A M15. Power Seat Module (s)/ Adaptive Cruise Control/Audio Telematics/Daytime Running Lights Relay/ Air Suspensión Module/ Instrument Cluster. Fuse MINI. 10A. M16. Occupant Restraint Controller. Fuse MINI. 15A. Theremote keyless system in Jeep Cherokee allows the driver to conveniently lock and unlock the vehicle with the press of a button. The most common cause of key fob not working in Jeep Cherokee is dead battery. But the remote key can also stop working due to worn buttons, poor battery contact, water damage, defective Ihave 2012 Jeep grand Cherokee Laredo 4x4. the battery is located under floor on passenger side. how do I access it? Mechanic's Assistant: Have you tested the battery with a voltmeter? And can you see if it's leaking or not? Not leaking, but at what is considered half-life. Mechanic's Assistant: Are you fixing your Grand Cherokee yourself oilspot 514 posts · Joined 2014. #3 · Sep 7, 2021. The AUX and Main batteries are AGM - and yes ESS is the first indicator of a weak AUX battery. They seem to fail first and then bring the charge down in the main battery shortly thereafter. Perhaps because the adaptive charging system is trying to charge the AUX and overcharges the 1 Getting Started - Prepare for the repair. 2. Open the Hood - How to pop the hood and prop it open. 3. Access Battery - Learn where the battery is located. Car Displayed: 1999 Jeep Grand Cherokee Limited 4.0L 6 Cyl. 4. Remove Bracket - Thebattery location in a Jeep Grand Cherokee can typically be found in the engine bay, but may be in the trunk, fender or inside of the vehicle. You may need to remove the air filter housing, a plastic engine cover or parts of the cowl to find the battery in your Grand Cherokee. See exactly where the battery is located in your 2009 Jeep Grand fJT8.