2022 Jeep Grand Cherokee: won't start

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 May 31, 2026 · Fuel system · PA

My vehicle will not start so I jumped my battery when my car cut on I had a bunch of lights flashing my engine light my power steering light the miles per hour on my dash was flashing will not let me put my car into drive or reverse and when I did get it into drive my steering wheel was completely locked. After a few minutes. The vehicle will cut off again. All of this happened out of nowhere.I I was driving perfectly with no issues the day before

Filed May 16, 2026 · Electrical, Engine · PA

I am submitting this complaint regarding a serious safety-related failure involving my 2022 Jeep Grand Cherokee 4xe. I purchased the vehicle used with approximately 15,000 miles and was informed the previous owners leased it and rarely used it. At approximately 40,000 miles, despite completing all recalls in a timely manner, the vehicle experienced the exact type of hybrid system failure a recall was intended to prevent. The issue began when the hybrid system failed and left the vehicle unsafe to operate. Upon startup, only accessory power activated and the engine would not start. A full power cycle was required before the vehicle started. Immediately afterward, warnings appeared including "Service Hybrid System," "Service Charging System," "EAB Unavailable," "Lane Keep Assist Unavailable," "Pedestrian Braking Unavailable," and "Adaptive Cruise Control Unavailable." The check engine light illuminated and all hybrid modes became unavailable. Shifting became erratic and harsh. Downshifts from 2nd to 1st felt like sudden braking and caused me to hit my head on the steering wheel. During acceleration, the transmission slipped and shifted unpredictably. Fuel economy dropped from approximately 22 MPG in E-Save mode to approximately 10 MPG at highway speeds. Diagnostic code P1E1D was retrieved and I was advised the vehicle was unsafe to drive. While driving to the dealership, the vehicle shut down twice while in motion. During both shutdowns, power steering and braking assistance were lost, posing an extreme risk to myself and others while moving the vehicle off a busy three-lane roadway. Dealership diagnostics determined one or both high-voltage battery systems failed and required replacement. Despite completed recalls, the issue still occurred. Parts were backordered over a month. I believe this failure and recall effectiveness warrant investigation due to the serious safety risks created by loss of propulsion, steering, and braking assistance while driving.

Filed Apr 9, 2026 · Electrical · MO

I received the following from the dealer when taking my car in for a suspension repair. Stellantis (Jeep) is trying to charge for software bug updates after warranty when the fixes were not available and also the without the fixes it could leave the car inoperable. Most of these should be covered as a safety/operational concern and should not be optional or charged for. "Software Update ,msmd,ttm,eps,idcm,bpcmCustomer Pay$239.33 Causes 1.Software IJpdate msmd Customers may experience the following: • Memory seat does not save on profiles 1 or 2. • Easy entry/exit functionality is inoperative. 2.ttm Customers may comment on one or more of the following: e If the vehicle is traveling at less than 5 kph (3 mph) and the brake pedal is pressed, then both turn lights will flash for two milliseconds. If the vehicle is traveling at less than S kph (3 mph) and one turn light is activated, then the opposite turn light will flash for 20 milliseconds 3.idcm Customer may also experience the following: 12 volt battery drain. e Vehicle will not charge." 4.eps *Customer may also experience the following: • A low frequency EPS motor noise during low speed steering maneuvers which may be more noticeable at higher ambient and system temperatures." 5.bpcm Customers may also experience one or more of the following: e "Vehicle does not start." • Low 12V battery causing vehicle not to start."

Filed Mar 2, 2026 · Electrical, Engine · MN

The vehicle has experienced repeated electrical failures. On multiple occasions the vehicle would not start and lost all electrical power. The main electrical system appears to fail suddenly, causing the vehicle to become inoperable. The vehicle has been to the dealership multiple times for the same issue and was out of service for extended periods. This is a serious safety concern because the vehicle can completely shut down without warning.

Filed Feb 19, 2026 · Electrical, Engine · MN

On January 23, while driving, the vehicle suddenly shut down and stopped working without warning. I attempted to restart the vehicle several times, but it would not start. Smoke was coming from the engine area, and the vehicle was completely disabled on the road. I was stranded on the roadside until approximately 11:30 PM, waiting for a tow truck to arrive. The vehicle had to be towed and taken to the dealership. The dealership later confirmed that the engine wiring harness had burned and failed. The failed component is currently at the dealership and is available for inspection. This sudden shutdown created a serious safety risk to me and other drivers due to loss of power while driving. The issue was not caused by misuse or modifications. The vehicle has since been inspected by the dealership and a manufacturer (Chrysler) representative.

Filed Oct 22, 2025 · Driver assistance, Electrical · MO

Randomly, & without warning, the instrument cluster & Uconnect display will glitch and flicker off then on but switch into language I do not speak or understand (Italian). Coinciding with language switch, instrument cluster & radio display settings revert back to default settings, paddle shifter becomes inoperative (with no menu option to enable), forward collision warning (fcw) lamp turns on with no way to disable, units of measurement including speed, temperature, etc. all change & menu option to switch units back to Fahrenheit gone, auto tilting mirrors in reverse off . ***This is clearly a dangerous situation because of all the functions &gauges that change while driving & the fact it is difficult if not impossible to recover from this due to the language of the setting menus, & the complexity of finding & navigating menus to try to wade through all the settings menus &change setting back, some items cannot be reset (like the FCA off lamp and temp units). I have taken it to the dealer for diagnostic, they found no error codes but found service bulletin S210800193 and S2108000221 performed IPC Customer programmable features Configuration to temporarily correct the issue, but it happened again 3 weeks later. I had to pay $254 for this service, and the issue isn't fixed. Here is an example forum discussion, indicating many if not all vehicles are affected: https://www.jeepgarage.org/threads/forward-collision-warning-off-light-is-stuck-on.250301/#replies Many people on the forum believe this issue did not start until a software update a year or so ago. This is a well known and widespread problem, and there is even a DOT Bulletin on the issue: dot.report Bulletins https://dot.report/bulletins/11006236 Because this is dangerous and very distracting while driving (for settings/gauges/units to no longer be useful while driving), and it occurs randomly, I strongly believe this issue should be a manufacturer recall. I am available for any needs.

Filed Oct 17, 2025 · Driver assistance, Electrical · MI

Randomly, and without warning, the instruments, gauges, and displays will switch into a language I do not speak or understand (Italian). Coinciding with the switch to Italian language, cluster and radio display settings revert back to default settings, auto door locks and paddle shifter becomes inoperative (with no menu to enable), pedestrian emergency brake (peb) lamp or forward collision warning (fcw) lamp turns on with no way to disable, units of measurement including speed, temperature, etc. all change, and many other random settings change as well. ***This is clearly a dangerous situation because of all the functions and gauges that change, and the fact it is difficult if not impossible to recover from this due to the language of the setting menus, and the complexity of discovering and navigating through all these changes. I have taken it to the dealer 7 times, and they say there is nothing they can do and to wait for a possible software update, but none has come and it has been over two years. When this happens, even if one is able to wade through all the settings menus and change setting back, some items cannot be reset (like the FCA off lamp). According to various Jeep owner forums, some dealers have been able to reset something and temporarily correct the issue, but they charge for this service, and the issue returns randomly again. Here is an example forum discussion, indicating many if not all vehicles are affected: [XXX] Many people on the forum believe this issue did not start until a software update a year or so ago. This is a well known and widespread problem, and there is even a DOT Bulletin on the issue: dot.report Bulletins Because this is dangerous (for settings/gauges/units to no longer be useful while driving), and it occurs randomly, I strongly believe this issue should be a manufacturer recall. I am available for any needs. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 10, 2025 · Driver assistance, Electrical · FL

This happened 4 tines before Randomly, and without warning, the instruments, gauges, and displays will switch into a language I do not speak or understand (Italian). Coinciding with the switch to Italian language, cluster and radio display settings revert back to default settings, auto door locks and paddle shifter becomes inoperative (with no menu to enable), pedestrian emergency brake (peb) lamp or forward collision warning (fcw) lamp turns on with no way to disable, units of measurement including speed, temperature, etc. all change, and many other random settings change as well. ***This is clearly a dangerous situation because of all the functions and gauges that change, and the fact it is difficult if not impossible to recover from this due to the language of the setting menus, and the complexity of discovering and navigating through all these changes. I have taken it to the dealer twice, and they say there is nothing they can do and to wait for a possible software update, but none has come and it has been over a year. When this happens, even if one is able to wade through all the settings menus and change setting back, some items cannot be reset (like the FCA off lamp). According to various Jeep owner forums, some dealers have been able to reset something and temporarily correct the issue, but they charge for this service, and the issue returns randomly again. Here is an example forum discussion, indicating many if not all vehicles are affected: [XXX] Many people on the forum believe this issue did not start until a software update a year or so ago. This is a well known and widespread problem, and there is even a DOT Bulletin on the issue: dot.report Bulletins Because this is dangerous (for settings/gauges/units to no longer be useful while driving), and it occurs randomly, I strongly believe this issue should be a manufacturer recall. I am available for any needs." INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 16, 2025 · Electrical · GA

The entire Jeep failed. Every light, warning, service, etc came up when cranking, and then it went dead. Now, it will not crank at all. Additionally, the trunk will not open and no power pops up on dashboard or display. This is put my family at risk due to the vehicle being parked next to my home with a possible shortage. No one has confirmed or checked, due to it being a Saturday. No warning was given prior.

Filed Jul 26, 2025 · Driver assistance, Electrical · IL

"Randomly, and without warning, the instruments, gauges, and displays will switch into a language I do not speak or understand (Italian). Coinciding with the switch to Italian language, cluster and radio display settings revert back to default settings, pedestrian emergency brake (peb) lamp or forward collision warning (fcw) lamp turns on with no way to disable, units of measurement including speed, temperature, etc. all change, and many other random settings change as well. ***This is clearly a dangerous situation because of all the functions and gauges that change, and the fact it is difficult if not impossible to recover from this due to the language of the setting menus, and the complexity of discovering and navigating through all these changes. I have taken the vehicle to the dealer recently and they performed an update when the radio was blank and AM radio failed to function. When this happens, even if one is able to wade through all the settings menus and change setting back, some items cannot be reset (like the FCA off lamp). According to various Jeep owner forums, some dealers have been able to reset something and temporarily correct the issue, but they charge for this service, and the issue returns randomly again. Here is an example forum discussion, indicating many if not all vehicles are affected: [XXX] Many people on the forum believe this issue did not start until a software update a year or so ago. This is a well known and widespread problem, and there is even a DOT Bulletin on the issue: dot.report Bulletins Because this is dangerous (for settings/gauges/units to no longer be useful while driving), and it occurs randomly, I strongly believe this issue should be a manufacturer recall. I am available for any needs." INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 13, 2025 · Driver assistance, Electrical · IL

"Randomly, and without warning, the instruments, gauges, and displays will switch into a language I do not speak or understand (Italian). Coinciding with the switch to Italian language, cluster and radio display settings revert back to default settings, auto door locks and paddle shifter becomes inoperative (with no menu to enable), pedestrian emergency brake (peb) lamp or forward collision warning (fcw) lamp turns on with no way to disable, units of measurement including speed, temperature, etc. all change, and many other random settings change as well. ***This is clearly a dangerous situation because of all the functions and gauges that change, and the fact it is difficult if not impossible to recover from this due to the language of the setting menus, and the complexity of discovering and navigating through all these changes. I have taken it to the dealer twice, and they say there is nothing they can do and to wait for a possible software update, but none has come and it has been over a year. When this happens, even if one is able to wade through all the settings menus and change setting back, some items cannot be reset (like the FCA off lamp). According to various Jeep owner forums, some dealers have been able to reset something and temporarily correct the issue, but they charge for this service, and the issue returns randomly again. Here is an example forum discussion, indicating many if not all vehicles are affected: [XXX] Many people on the forum believe this issue did not start until a software update a year or so ago. This is a well known and widespread problem, and there is even a DOT Bulletin on the issue: dot.report Bulletins Because this is dangerous (for settings/gauges/units to no longer be useful while driving), and it occurs randomly, I strongly believe this issue should be a manufacturer recall. I am available for any needs INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)