2025 Jeep Grand Cherokee L Problems: 4 Issues Every Owner Should Know
2025 model year · 0+ owner reports · Updated April 2026
According to Au7o's analysis of 0+ owner reports, the 2025 Jeep Grand Cherokee L has 4 documented known issues. No issues are rated critical, indicating generally reliable ownership. Across all issues, repair costs range from $0 to $2,500. DIY maintenance guides at au7o.io.
All 4 Known Issues
On the 2021-2025 Jeep Grand Cherokee L Pentastar 3.6L, the Grand Cherokee L with the 3.6L Pentastar V6 includes an eTorque mild hybrid system using a 48V belt-driven motor-generator and a lithium-ion battery pack. The system is prone to faults including 48V battery degradation, belt-starter-generator (BSG) communication errors, and auto-stop/start failures. When the eTorque system faults, the vehicle may display multiple warning messages, lose the auto-stop feature, and experience harsh restarts. The 48V battery is located under the front passenger seat and can be affected by moisture intrusion.
Common Symptoms
- Auto stop/start feature stops working
- eTorque System Fault warning message
- Harsh or delayed engine restart at stop lights
- Multiple warning lights on dashboard simultaneously
- Reduced fuel economy from eTorque not assisting
How to Fix
Clear fault codes and perform an eTorque system reset with a dealer scan tool. Check the 48V battery connections under the front passenger seat for corrosion. Replace the 48V battery if it has degraded (typical lifespan 5-8 years, but early failures occur). Update the PCM and BSG module software to the latest calibration. If the BSG belt is glazed or stretched, replace it with the OEM belt — aftermarket belts often do not meet the friction requirements of the motor-generator.
What Owners Are Using
Parts and tips from 0+ owners who fixed this issue
- Tip
- UpgradeHigh-performance AGM battery with excellent cold cranking amps and deep cycle capability (Optima RedTop AGM Battery)
- UpgradeOEM-quality replacement battery with reliable performance (ACDelco Professional AGM Battery)
- UpgradeAutomatic battery maintainer to prevent parasitic drain issues during storage (Battery Tender Junior 12V Battery Charger Maintainer)
- UpgradeOEM-quality starter motor for reliable engine cranking (Denso Starter Motor)
- UpgradeRemanufactured starter with gear reduction for improved cranking performance (Remy Remanufactured Starter Motor)
- UpgradeProfessional OBD-II diagnostic scanner for reading infotainment and body module codes (BlueDriver Bluetooth Pro OBD2 Scan Tool)
- UpgradePremium electrical tape for wiring repairs and harness wrapping (3M Super 33+ Vinyl Electrical Tape)
- UpgradeSplit wire loom tubing to protect repaired or exposed wiring harnesses (DEI Split Wire Loom Tubing)
- UpgradeWeatherproof terminal connector kit for reliable wiring repairs (Molex Automotive Terminal Connector Kit)
- UpgradeAutomotive relay replacement set for common relay failures (Bosch Automotive Relay 5-Pin 12V)
- UpgradeDigital multimeter for diagnosing fuse, relay, and module electrical faults (Innova Digital Multimeter)
On the 2021-2026 Jeep Grand Cherokee L Pentastar 3.6L, the eTorque 48V mild hybrid system on the 3.6L V6 Grand Cherokee L experiences starter/generator failures, battery module issues, and auto start-stop malfunctions. The system can cause rough restarts and hesitation.
Common Symptoms
- Rough restart from auto stop
- eTorque warning light
- Start-stop not functioning
- Battery warning messages
- Hesitation on acceleration from stop
How to Fix
What Owners Are Using
Parts and tips from 0+ owners who fixed this issue
- UpgradeHigh-performance AGM battery with excellent cold cranking amps and deep cycle capability (Optima RedTop AGM Battery)
- UpgradeOEM-quality replacement battery with reliable performance (ACDelco Professional AGM Battery)
- UpgradeAutomatic battery maintainer to prevent parasitic drain issues during storage (Battery Tender Junior 12V Battery Charger Maintainer)
- UpgradeOEM-quality starter motor for reliable engine cranking (Denso Starter Motor)
- UpgradeRemanufactured starter with gear reduction for improved cranking performance (Remy Remanufactured Starter Motor)
- UpgradeAutomotive relay replacement set for common relay failures (Bosch Automotive Relay 5-Pin 12V)
- UpgradeDigital multimeter for diagnosing fuse, relay, and module electrical faults (Innova Digital Multimeter)
On the 2021-2026 Jeep Grand Cherokee L, the Uconnect 5 system in the Grand Cherokee L experiences frequent freezing, touchscreen lag, wireless CarPlay/Android Auto disconnections, and occasional black screen events requiring a hard reset.
Common Symptoms
- Touchscreen freezing
- Black screen
- CarPlay/Android Auto disconnecting
- Slow response to inputs
- Backup camera delay
How to Fix
What Owners Are Using
Parts and tips from 0+ owners who fixed this issue
- UpgradeProfessional OBD-II diagnostic scanner for reading infotainment and body module codes (BlueDriver Bluetooth Pro OBD2 Scan Tool)
On the 2021-2025 Jeep Grand Cherokee L, the Grand Cherokee L with the dual-pane panoramic sunroof is prone to water leaks caused by clogged or kinked drain tubes. The extended-length L model has longer drain tube runs than the standard Grand Cherokee, increasing the likelihood of blockage. Water pools in the sunroof channel and overflows into the headliner, dripping onto the front seats, center console electronics, and overhead console modules. The rear drain tubes are especially prone to clogging where they pass through the C-pillar.
Common Symptoms
- Water dripping from headliner near sunroof area
- Wet spots on front or rear seats after rain
- Water stains on headliner fabric
- Musty smell inside vehicle
- Overhead console lights or controls malfunctioning
How to Fix
Clear all four sunroof drain tubes using compressed air blown from the top opening — do NOT use a wire, which can puncture the tubes. Check that the drain tube exits under the vehicle are clear of debris. If water has already entered the headliner, pull it back to dry the insulation and check for mold. Inspect the overhead console module and ambient lighting connectors for corrosion. Stellantis has issued a TSB with revised drain tube routing for 2021-2022 models.
What Owners Are Using
Parts and tips from 0+ owners who fixed this issue
- Tip
- UpgradeTrim removal tool set for body panel work without damage (MICTUNING Trim Removal Tool Set)
- UpgradeBondo body filler for dent and panel repair (Bondo Body Filler Kit)