If outside temp is lower and my battery is charged, I usually see 13.8-14.2V (running of course). When you do a cold start in the morning, you should be at or slightly over 14V, for a short while, until full charge status is reached. If you never see 14V or slightly above, then there may be a condition developping. 2015 jeep grand Cherokee 3.4l. Mechanic's Assistant: Are you fixing your Grand Cherokee yourself? What have you tried so far? I tried jumping the dead battery. There was fluctuating power, wipers came on uncommanded, dash light came on. When I pushed the start button there was a click but no start. 1. Disconnect the battery by removing the positive battery cable. Remember, the positive battery cable. 2. Ground the positive cable to the negative cable for 30 seconds to erase the electric charge in the capacitors. 3. Reconnect the positive cable to the battery. 4. Turn the key to on but do not start. Hold Mute and Tune buttons for reboot. This makes no changes to your settings, it is just a reboot procedure. Uconnect Factory (Engineering) reset: Hold temp up and down buttons to access engineering menu. This will wipe all of your personal settings and take it back to factory default. Callander. Active member. Aug 14, 2021. #1. Jeep Grand Cherokee L > Battery Discharge Issue, woke up found battery dead down to 8v dead. It was about maybe after 18 hours none use. I charged it up took about 12 hours to charge to full which tells me typically good battery. Bad battery's typically charge fast and discharge fast. Your 2015 Jeep Grand Cherokee battery will typically last between 3 to 5 years, but that can vary heavily depending on weather conditions battery size, type of battery, and driving habits. Even still, just because your battery isn't completely dead, doesn't mean it's operating at optimal levels. Carlyle Battery Chargers ; Scott Shop Towels; Walter ; Windshield Wipers. NAPA Wiper Blades; 2015 jeep cherokee Batteries. Categories. Part Types. POPULAR SUB Alternatively, ask an AutoZone associate for help determining an identical battery group size replacement for your 2004 Jeep Grand Cherokee. Signs of a Faulty Battery If you're not sure whether your 2004 Jeep Grand Cherokee battery needs to be replaced, check for signs like electrical issues, flickering lights, or a rotten egg smell coming from Replacing a bad battery on a Jeep vehicle. 2015 Jeep Grand Cherokee specifically. Battery location J more. @HowIFixedIt Customer stated. The vehicle only clicks and will not start. afbZy.

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