The etorque system runs the auto start/stop system with a 48 volt battery and a water cooled motor/generator unit (MGU) that auto starts AND delivers a low RPM torque boost to the engine via the serpentine belt. This system has a separate cooling system for just the electronics and the MGU. As for not being able to turn the radio off, it is not a radio, it is a head unit that has many modules in the car sending info to it. Power drain is inevitable with the Jeep. Jeep and uConnect have the ability to push some updates over the air using the 3G connection. uConnect Access receives commands via email. The Jeep Grand Cherokee is a range of mid-size SUVs produced by the Battery: 17.3 kWh 2011–14 model year Grand Cherokees were recalled due to improperly THE 2011 GRAND CHEROKEE USES ABSORBENT GLASS MAT (AGM) BATTERY TECHNOLOGY An AGM battery is a sealed unit that uses special relief valves to vent vapors from the battery. The electrolyte is stored in sponge like separators consisting of matted glass filters. This suspension increases the efficiency of the charging and discharging rate of the Test the new key fob battery by standing near your Grand Cherokee while pressing the "Lock" and "Unlock" buttons. If the new battery is working properly, you should see the parking lights flash, hear a short horn honk, and also hear the power door locks opening or closing. TIPM Going Bad, Engine Won't Start Or Hard To Start 223. Engine Won't Turn Over, Won't Start 28. Alternator Blown 15. Lost All Power While Driving 10. Accessories Operate Unintentionally 5. Power Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Battery product you desperately need. We currently carry 2 Battery products to choose from for your 2020 Jeep Cherokee, and our inventory prices range from as little as $214.99 up to $254.99. On top of low prices, Advance Auto Parts The bigger one (more toward the front) is the one you need to disconnect. Reply Like. Sevn86 Discussion starter. 522 posts · Joined 2017. #3 · Jun 11, 2017 (Edited) Thanks! So I disconnected both the positive and negative cables off the big battery under the passenger seat and my vehicles interior lights are still on. Have owned for 30,000 miles. Laredo X with V-8 Hemi. EPA accurately rated at 13/19 mpg. Using Plus or Premium fuel allows the engine to run in 4-cylinder mode more, giving another 1 or 2 mpg. Jeep Grand Cherokee 3.6L / 5.7L 2011, Marathon Max™ AGM Battery (MX-H7L494R) by Exide®. Amp Hour Capacity: 80. Cold Cranking Amperage: 800. Reserve Capacity: 140. Voltage: 12V. Exide’s AGM (Absorbed Glass Mat) battery, Marathon Clean, spill-proof, maintenance-free absorbed glass mat construction. yLPrcnM.