2023 Jeep Grand Cherokee Battery Problems

The 2023 Jeep Grand Cherokee 4xe (plug-in hybrid) has faced significant high-voltage (HV) traction battery and related 12-volt electrical issues. These center on fire risk from internal cell defects (Samsung SDI cells with separator damage), excessive battery drain, no-start conditions, charging failures, and sudden power loss. Owner reports, NHTSA complaints, long-term tests (e.g., Edmunds), forums, and Consumer Reports document repeated stranding, shop time, and safety concerns. Many problems persist or worsen after earlier software remedies.

Common Complaints

Owners frequently report:

• HV battery fire risk and thermal events: Vehicles can smoke or catch fire while parked or driving due to cell separator damage leading to internal short-circuits and thermal runaway. NHTSA records link multiple fires (reports cite ~19 associated with the broader 4xe population, including some post-prior-remedy). Owners are often instructed not to charge or park indoors/near structures.
• Excessive HV battery drain while parked: Drain of 8–30% overnight or over days (even in moderate temperatures), sometimes after recall work. This reduces usable EV range and can leave the vehicle in a low state of charge.
• 12-volt battery drain / no-start / complete power loss: Dead 12V batteries after sitting (sometimes days), sudden total power loss while driving (limp mode, locked in gear, blank screens), requiring tows. Edmunds' long-term 2023 4xe was stranded three times; one cause was defective 12V cells. Parasitic draws linked to modules (BCM, rear HVAC, IDCM, tailgate lock, etc.). Multiple 12V replacements under warranty are common.
• Charging system failures: Unable to charge on Level 1/2, premature stop, “Service Charging System” warnings, or operation forced into gas-only mode. Related DTCs include P0DAB-00 (cell balancing), P0BBE-00 (voltage variation), P1C5E-00 (state of health failed).
• Sudden shutdown / loss of propulsion while driving: Complete power loss at speed, requiring restarts or tows; sometimes tied to hybrid control modules or post-recall issues.
• Other related issues: MIL illumination, rough shifting, inability to shift out of park, and high shop time (weeks to months for battery diagnostics/replacements). Reliability scores are mixed-to-poor in owner surveys; some describe lemon-law pursuit after repeated failures.

These appear across NHTSA ODI complaints, CarComplaints, forums (Jeep Garage, 4xe groups), and reviews. Cold weather can exacerbate charging and EV-mode performance.

Technical Service Bulletins (TSBs)

Stellantis has issued multiple software-focused TSBs addressing battery-related symptoms on 2023 (and overlapping) Grand Cherokee 4xe models. Key examples:

• TSB 08-183-25 (and REV. A): BCM software update for battery drain, ignition-off draw (IOD), instrument cluster flickering on/off in sleep mode, and door-lock indicators staying illuminated. Applies to certain 2023 Grand Cherokee/L/4xe (including China-spec variants). Labor ~0.2 hours; HV safety steps required for PHEVs.
• TSB 08-068-26 / 08-019-25: BPCM (Battery Pack Control Module) software updates for MIL illumination and DTCs including P0607-00, P0C78-00, P0CA6-00, P0B24-00, P1C5E-00, P0BBE-00, P0DAB-00, contactor stuck codes, etc. Addresses no-start (sometimes after 49 days of certain MILs), low 12V, and hybrid battery performance.
• TSB 08-359-25: HCP/AHCP (Hybrid Control Processor / Auxiliary, aka Power Inverter Module) updates for low/weak 12V or no-start (voltage <10.5V), inability to charge with key off, rough shifting, harsh EV-to-hybrid transitions, and related DTCs (e.g., P16F0-00).
• TSB 08-072-26: HV battery pack replacement guidance tied to the XU1 warranty extension. Qualifying DTCs: P0DAB-00, P0BBE-00, P1C5E-00, P0B24-00, P0B28-00. Full pack replacement (labor ~3–4+ hours).
• Other related: IDCM updates for charging/12V drain issues; various HCP/PIM flashes that may also cover prior recall software.

Dealers use wiTECH for flashes. Some owners report incomplete resolution or new drain after updates.

Recalls

The primary battery concerns involve repeated NHTSA campaigns for HV battery fire risk (Samsung SDI cells with separator damage). These affect 2023 Grand Cherokee 4xe among broader 4xe populations:

• NHTSA 23V-787 (earlier, mainly Wrangler): Initial software remedy for fire risk; later expanded.
• NHTSA 24V-720 (Chrysler 95B, Sept 2024): Expanded to ~154,000 vehicles including 2022–2024 Grand Cherokee 4xe. HV battery may fail internally → fire while parked or driving. Remedy: software update to battery pack control module + replace pack if needed. Owners advised to park outside, away from structures, and not charge until repaired. Prior 23V-787 vehicles needed the new remedy.
• NHTSA 25V-741 (Chrysler 68C, Oct/Nov 2025): Further expansion to ~320,065 vehicles (2020–2025 Wrangler 4xe and 2022–2026 Grand Cherokee 4xe; ~91,800+ Grand Cherokee units). Same root cause; prior software remedies (including 24V-720) deemed ineffective at detecting certain abnormalities (9+ fires reported in previously remedied vehicles). Total associated fires higher in some tallies. Remedy under development at announcement (software + pack replacement as needed in later updates); interim advice: park outside/away from structures and do not charge. Vehicles previously under 24V-720/23V-787 require the new remedy. Owner notifications began ~Dec 2025.

Related (non-battery but relevant): NHTSA 25V-766 (Chrysler 78C) covers certain 2023–2025 Grand Cherokee 4xe for engine block sand/debris contamination that can cause catastrophic engine failure, loss of propulsion, or engine-compartment fire. Separate from the HV battery issue.

Warranty note: Stellantis issued XU1 extension for the HV battery pack on qualifying 2022–2026 Grand Cherokee 4xe (and Wrangler) to unlimited years/miles from original in-service date for specific DTCs linked to separator damage/cell issues. Diagnosis/replacement follows TSB 08-072-26.

Recommendations and Context

Check your specific VIN on NHTSA.gov or with a Jeep dealer for open recalls/TSBs. Until battery-related recalls are fully remedied, follow the “park outside, do not charge” guidance where applicable. Document all issues, repair orders, and communications for potential warranty, lemon-law, or class-action considerations (lawsuits have referenced these battery problems). Software updates are common first steps; full HV pack replacement occurs when diagnostics confirm cell issues.

Sources include NHTSA recall filings and complaints, Stellantis TSBs/warranty bulletins, Edmunds long-term testing, Consumer Reports, owner forums, CarComplaints, and automotive reporting (AutoEvolution, Torque News, etc.). Issues evolve; verify the latest status with official channels as remedies progress.