Jeep Grand Cherokee battery drain problems

Filed Aug 27, 2026 · Electrical · NJ

New vehicle failure to start on four occasions over approximately sixteen months due to overnight parasitic battery drain. Following the first incident the dealer replaced both the main and auxiliary batteries. Following the second incident the dealer tested and charged both batteries and performed software update to body control module (BCM). Following the third incident the dealer tested both batteries and checked codes. Following the fourth incident the dealer replaced both the main and auxiliary batteries. The incidents required towing or jump starting.

Filed Aug 3, 2026 · Electrical, Engine · IL

​Vehicle Information: ​Year / Make / Model: 2022 Jeep Grand Cherokee Overland 4xe ​Component(s) Involved: Engine / Hybrid Powertrain / Electrical System / Sudden Loss of Drive Power ​Current Mileage: Approximately 48,000mi ​Incident Summary ​I am filing this complaint because my 2022 Jeep Grand Cherokee Overland 4xe has developed a dangerous new defect following an official recall service: the engine completely dies while accelerating on the highway. ​I took my Jeep to an authorized dealership to have the safety recall performed for the engine shutdown issue. Before this recall work was completed, I had never experienced the vehicle dying on the highway. Since the recall "fix," however, the engine has cut out completely 4 separate times while accelerating at high speeds. The most recent time happened today (August 3, 2026). Losing all pedal response and motive power in fast-moving traffic with no warning is terrifying and creates an extreme hazard for myself and everyone around me. ​History of Vehicle Issues & Extended Shop Time ​This sudden highway stalling comes on top of severe, ongoing electrical problems that have plagued this Jeep. Altogether, the vehicle has spent months sitting in the dealership shop, yet the problems remain unfixed: ​Post-Recall Engine Shutdowns: 4 separate complete power loss incidents while accelerating on the highway (latest occurrence: August 3, 2026). ​Unresolved Battery Drain: Ongoing parasitic battery drain that kills the battery, requiring multiple rounds of diagnostics without a solution. ​Pervasive Electrical Glitches: Frequent system glitches, including frozen touchscreens, instrument cluster reboots, random dash warning lights, and connectivity drops. ​Media Hub Issues: Hardware problems involving the media hub module. ​Requested Action ​The recall fix did not solve the safety hazard—it seems to have triggered a new, life-threatening stalling issue on the highway, along with the string of other issues, it's unsafe to drive.

Filed Aug 1, 2026 · Driver assistance, Electrical · IN

My vehicle has multiple software and electrical issues that Jeep has been unable to diagnose or repair, and there is currently no recall addressing these problems. One of the most serious issues is that the vehicle will randomly switch the display language from English to Italian while I am driving. When this happens, the speedometer changes from miles per hour (MPH) to kilometers per hour (KPH), making it difficult to know my speed without pulling over and manually changing the language back to English. This creates an unnecessary safety concern. Additionally, the automatic door lock feature no longer functions properly. Although the dealership has repaired it in the past, the problem has returned. I also continue to receive a dashboard warning indicating that the Forward Collision Warning system is disabled, even though the feature is clearly enabled in the vehicle's settings. This inconsistency raises concerns about whether the safety system is functioning as intended. Another ongoing issue is that the vehicle randomly drains its battery. Both AutoZone and the dealership have tested the main battery and the auxiliary battery, and both have been found to be in normal working condition. Despite this, the battery drain continues to occur without explanation randomly. These recurring software and electrical problems have become unacceptable. Jeep has been unable to provide a permanent solution, and I believe the company should stand behind its product by acknowledging and resolving these issues.

Filed Jul 30, 2026 · Electrical, Transmission · 10 miles · GA

The contact owns a 2026 Jeep Cherokee. The contact stated that while driving and making a right turn, the vehicle hesitated and jerked while depressing the accelerator pedal. Additionally, the contact stated that while attempting to accelerate from a complete stop, the vehicle failed to respond. The vehicle was turned off and restarted and responded as intended upon shifting into drive(D). No warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed with a loss of battery communication with the computer due to a dead battery. The battery was replaced; however, the failure persisted. The contact stated that the vehicle was previously repaired under an unknown recall. The vehicle was taken back to the dealer for a third time, but no further diagnostic information was available. The manufacturer was notified of the failure and advised the contact not to trade the vehicle due to the safety risk. The service manager informed the contact that another repair attempt was required before the vehicle could be considered under the Lemon Law. The vehicle was not repaired. The failure mileage was approximately 10.

Filed Jul 27, 2026 · Electrical · TX

The 12-volt auxiliary battery on this 2022 Jeep Grand Cherokee 4xe plug-in hybrid repeatedly discharges to a completely dead state while the vehicle is parked and switched off. The vehicle has failed three times in approximately 30 days. First failure, June 26, 2026: the vehicle would not start. Numerous fault codes were stored across multiple modules, including P0562 (system voltage low). The odometer display was flashing, indicating a module had dropped off the communication bus. Second failure, July 13, 2026: less than 48 hours after returning from a road trip and parking, the same condition recurred. The vehicle required external 12-volt power to start. Third failure, July 26, 2026: a brand-new AGM battery had been installed on July 24, 2026. Within 48 hours of installation the battery measured 5.85 volts — fully discharged. An 80Ah battery discharging in 48 hours indicates a continuous parasitic draw of roughly one amp, which is 20 to 40 times the normal key-off draw for a sleeping vehicle. Owner testing has ruled out both the battery and the charging system. The DC-DC converter was measured delivering 127 amps at 13.9 volts, confirming it functions. The replacement battery accepts and holds a full charge, resting at 13.06 volts after recharge. The previous battery passed a printed conductance and load test. During each failure, the entire camera system and the ParkSense park assist system drop out simultaneously and the odometer flashes. Stored codes include U0159-00 (lost communication with parking assist control module) and B2204-00 (ECU configuration mismatch). Separately, and even when the 12-volt system is healthy, the rear backup camera intermittently fails to activate at startup and sometimes only begins working after 5 to 10 minutes of driving. Safety concerns: 1. Rear visibility. The backup camera intermittently does not display an image when the vehicle is placed in reverse. 2. Loss of motive power. 3. Stranding

Filed Jul 23, 2026 · Electrical, Fuel system · WA

At the end of March 2026, the hybrid battery was replaced due to a recall by the dealership. After this, several software updates done, including the BCM, per technician's notes. In May 2026, my vehicle was found bricked in my driveway, unable to jump start, giving warnings regarding the dual charging system. After being towed to the dealership, they found my 12v battery was dead and stated that it needed to be replaced, which was done, with no further testing per technician's notes. Six weeks later, in July 2026, my vehicle was found bricked in my driveway again, giving the same warnings on the dashboard as it did in May. Once towed to the dealership again, with further parasitic testing, they found a "TSB about improper BCM software causing the 12v systems battery to be drained, as well as the kombi flickering which was also experienced while vehicle was in shop. TSB stated the BCM needs to be flashed." (taken from the technician's notes). As the dealership explained it to me, my vehicle failed to receive an update for the BCM, causing this glitch to drain my 12v battery. Due to my vehicle exceeding the 36,000-mile warranty, the dealership forced me to pay for the work done in both May and July, in addition to paying for a rental car while my vehicle was in the shop, even though the cause of this problem originated from the manufacturer, and was no cause of mine.

Filed Jul 23, 2026 · Electrical, Engine · MI

There is a serious malfunction between the hybrid and electric systems. The engine is making a loud noise, and neither the hybrid nor electric mode functions properly. In addition, the fuel and oil refresh warning remains on, even after refueling. These issues are ongoing and substantially impair the use, value, and safety of the vehicle.On January 2, 2026, and march 8 my Jeep Grand Cherokee 4xe shut down twice while I was driving home on the freeway. This vehicle is not safe to operate under these conditions.Despite these concerns, the issues have not been resolved. Stellantis has removed 4xe models from the Jeep website due to safety concerns, recalls, and a high volume of customer complaints. At this time, there appears to be no effective remedy, and a simple software update will not correct these defects.My vehicle continues to produce an extremely loud engine noise, even while operating in hybrid mode. I am very familiar with how a Jeep should perform—this is my fifth Jeep Grand Cherokee—and I have never experienced anything like this before. Even my previous gasolineonly models operated much more quietly. In contrast, both the hybrid and gas modes on this vehicle sound like a diesel truck. Additionally, the fuel and oil warning light remains on constantly. I have contacted Jeep Customer Care multiple times, as well as the servicing dealer, and I was repeatedly told to “add more gas and continue driving the vehicle.” Despite following those instructions, the issue persists. The warning light does not turn off, the engine remains excessively loud, and the fuel consumption is unreasonable. The situation worsens in cold weather. The battery drains rapidly from 100% without explanation, even when the vehicle has been properly charged. At this point, I am genuinely afraid to charge the vehicle and even more concerned about driving it.In addition, the vehicle feels sluggish while driving and frequently does not pick up power as it should. There is a noticeable delay

Filed Jun 29, 2026 · TX

Odometer fraud: On [XXX], I purchased 2026 Jeep Grand Cherokee VIN [XXX] from Clay Cooley Dallas Dodge as "new." Federal Odometer Disclosure Statement and Retail Installment Contract stated 10 miles. Actual odometer at delivery: 124 miles after dealer disclosed dead battery replacement delayed delivery. No corrected Federal Odometer Disclosure Statement was provided as required by 49 USC 32705. Vehicle delivered was non-conforming to advertised characteristics: 1. Dealer digital showroom pictured 2026 Grand Cherokee with captain's chairs, 3rd row seating, chrome accents, silver wheels. I contracted based on those images. 2. Delivered: bench seat, no 3rd row, black painted 20" wheels. Salesman Cesar Ortiz confirmed "third row" by phone 6/16/2026 while viewing same images. 3. Delivery included Used Car Buyer's Guide and AS-IS disclosure prohibited on new vehicle sales under Magnuson-Moss Warranty Act 15 USC 2301, plus VTR-271 Limited Power of Attorney improper for new retail under TX Transp Code 501.147. 4. No executed Retail Installment Contract, Odometer Disclosure Statement, or Buyer's Guide provided at [XXX] delivery as required by TILA 15 USC 1638(b). Documents provided 6/23/2026 still falsely state 10 miles. Vehicle rejected under UCC INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 18, 2026 · Electrical, Fuel system · MN

This vehicle has experienced continuous HV battery drainage since repaired under recall 68C on 2/9/26. Multiple follow up trips to the dealer and discussions with the Stellantis "Star team" have resulted in them informing me the vehicle is unfixable but "safe" to drive. They admit they have no idea what the problem is or how to solve it.

Filed Apr 10, 2026 · Electrical · FL

Vehicle battery(s) consistently fail. Batteries have already been replaced once but they persist to fail especially if the vehicle sits for 1-2 days. This causes the vehicle to either not start at all, or starts, but then fails when you attempt to restart, once at your destination, leaving you stranded. No warnings. This was reported to the dealer when it originally occurred. Apparently there is a wide spread issue with this year vehicle due to a parasitic drain on the batteries from the vehicles electronics. Original issue was 01/01/2026 and again on 04/09/2026.