Jeep Grand Cherokee L Service Bulletins (2021)

215 manufacturer communications on file.

• May 21, 2026•Document ID: 11032976

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  08-221-26

  Date Added:

  May 28, 2026

  Manufacturer:

  JEEP

  Summary

  R1H Radio U41.10 USB Software Update Customers may experience one or more of the following: ● **FCW OFF light ON with no DTCs and can't turn off. ● Blank screen and then reboot every 2 minutes and 40 seconds. (Rearview Camera (RVC) Functions Normally). ● Paddle shifters not working/No longer a setting. ● Autolocks not working. ● Auto headlights not working. ● AM station not working (Appears some of the vehicles PROXI defaults to "1" which is absent for AM). ● Album Art flickering issue. ● Blank screen and then reboot every 2 minutes and 40 seconds. ● CarPlay icon disappears from main screen while still active, leaving no navigation path back. ● Light/dark theme mismatch between Radio and temperature screens at key-on Radio experiences lockups, resets, blank screens, and language issues after FOTA. ● Valet mode sends duplicate requests causing HU and vehicle state misalignment. ● Rear seat media page intermittently shows a blank screen. ● Unable to select or drag 'Pitch and Roll' widget on home screen. ● USB playback resumes incorrectly, skipping to next track after reconnect. ● Album art not displayed on HMI despite availability in media. ● Incorrect call timer displayed for conference calls. ● Call status remains 'active' on widget after call ends. ● Second call status not updated on home screen widget. ● Rear entertainment tab intermittently blank when switching apps. ● System crashes for 20 to 30 seconds after voice reply action. ● Media progress bar continues incorrectly after second call acceptance. ● CarPlay device fails to reconnect automatically or manually. ● Rear HVAC lock/unlock text missing while icon is present. ● Visual glitch observed on FPDM display. ● Surround view camera accessible while driving across apps (unexpected behavior). ● IPC navigation map fails to load despite HU showing navigation. ● HUD layout resets after overnight sleep cycle. ● ParkSense triggers unintended surround camera activation. ● HUD settings not retained after ignition cycle. ● Audio focus stuck on VR; selected message not read. ● Preset bar appears blank after overnight sleep cycle. ● FM channel switches unexpectedly and reverts after delay. ● Massage activation causes HU black screen/media disruption. ● Non-applicable ambient lighting setting visible in vehicle menu. ● Navigation screen appears black after system startup. ● Track name flickers on status bar during CarPlay playback. ● HU toggles between Home and Media screens without user input. ● Phantom touch causes navigation to switch from full screen to split view. ● HU redirects to CarPlay tab when exiting camera unexpectedly.** ● Unable to select the Turn by Turn Navigation. ● Blank Performance Pages (Rearview Camera (RVC) Functions Normally). ● Android Auto® Voice Recognition (VR) inoperative. ● Media tuner delayed. ● Charge Schedule not accepting updates via phone (RVC Functions Normally). ● Ambient light inoperative. ● Map in Instrument Panel Cluster (IPC) inoperative. ● Media Widget blank. ● Navigation map black. ● Off-Road Pages inoperative (RVC Functions Normally). ● VR inoperative. ● Incorrect song title displayed (Carplay® only). ● Radio display switches from Media Page to Home Page (RVC Functions Normally). ● Ghost touch on Navigation screen (RVC Functions Normally). ● Widgets missing. ● New User Profile does not load. ● Returns to wrong page after View Camera Event selected by customer in the Camera View Pages (RVC Functions Normally) This bulletin involves inspecting and if required, updating the radio software level to **U41.10.** Depending on the radio's current software level the radio may need a one or two USB update.

  Associated Products (18)

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  Associated Documents

  • DownloadMC-11032976-0001.pdf↗
• May 18, 2026•Document ID: 11032996

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  9100811 REV1

  Date Added:

  May 28, 2026

  Manufacturer:

  JEEP

  Summary

  Clunking when going over bumps, potholes, or turns. During diagnosis dealers may find rubber separating from the bushing on the handling link (SOL S2102000004 Rev C. for reference). This is normal and most likely is not attributed to the noise. Please follow normal diagnosis and ensure all tie-rod and ball joints are properly torqued and if worn, replace. If diagnosis leads to lower control arm replacement, the tension link(s) should be replaced first then test driven to ensure noise has disappeared before any handling link replacements.

  Associated Products (12)

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  Associated Documents

  • DownloadMC-11032996-0001.pdf↗
• May 18, 2026•Document ID: 11032992

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; STEERING

  Mfr Comm. #:

  S2123000070 REV.A

  Date Added:

  May 28, 2026

  Manufacturer:

  JEEP

  Summary

  After Electric Power Steering (EPS) Replacement, Diagnostic Trouble Code (DTC) C221C-00 ECU Not Programmed/Flash Required Is Set

  Associated Products (2)

  2021 Jeep Grand Cherokee2021 Jeep Grand Cherokee L
  Associated Documents

  • DownloadMC-11032992-0001.pdf↗
• May 14, 2026•Document ID: 11032857

  Service Bulletin/Repair Instructions
  STEERING; ELECTRICAL SYSTEM

  Mfr Comm. #:

  9100532 REV1

  Date Added:

  May 20, 2026

  Manufacturer:

  JEEP

  Summary

  Before replacing the steering column control module (SCCM) due to wipers inop, wipers not turning off, wipers not returning to position, heated steering wheel not working and/or steering controls inop, Electronic Stability Control (ESC) light on, please follow these steps: 1.- Review if there is any active DTC. Refer to service library procedure and follow diagnosis steps. 2.- If failure still present, make sure all the switches', horn's, heated steering wheel, airbag's harness are properly connected and there is no corrosion or pinching, disconnect the switches & reconnect them, and reverify the issue. 3.- Verify if failure is still present, review if there is lack of communication between SCCM and BCM. For example, activate turn signals or wipers. 4.- Read at the BCM diagnosis session if BCM is receiving information from SCCM. Through diagnosis review if activation from horn, wipers or turn signal is requested and are working. 5.- Disconnect the SCCM fuse for around 30s,and repeat the previous steps to see if failure still present. 6.- Do a hard reset to BCM and evaluate if any DTC is set. Retest if failure still present. Review the active DTCs. 7.- Before replacing the SCCM disconnect it and reconnect it again. Note: Wipers position is not controlled by SCCM, verify motor wiper status if issue continues. If request from SCCM is sent to BCM, then verify if the communication to wipers is not working properly. If there are no DTC's active, physical defects, steering controls inop, wipers inop, heated steering wheel inop, then SCCM does not need to be replaced. Note: WL / WS SCCMs do not contain a Steering Angle Sensor (SAS) The Steering Angle is computed within the Electronic Power Steering (EPS) module. See Electronic Power Steering (EPS) module for diagnosis and repair procedures.

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  Associated Documents

  • DownloadMC-11032857-0001.pdf↗
• May 13, 2026•Document ID: 11032842

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  08-208-26 REV. A

  Date Added:

  May 20, 2026

  Manufacturer:

  DODGE

  Summary

  Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub (no charging, no data). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle.

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  Associated Documents

  • DownloadMC-11032842-0001.pdf↗
• May 12, 2026•Document ID: 11032854

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  9100811

  Date Added:

  May 20, 2026

  Manufacturer:

  JEEP

  Summary

  Clunking when going over bumps, potholes, or turns. During diagnosis dealers may find rubber separating from the bushing on the tension link. This is normal and most likely is not attributed to the noise. Please follow normal diagnosis and ensure all tie-rod and ball joints are properly torqued and if worn, replace. If diagnosis leads to lower control arm replacement, the tension link(s) should be replaced first then test driven to ensure noise has disappeared before any handling link replacements.

  Associated Products (12)

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  Associated Documents

  • DownloadMC-11032854-0001.pdf↗
• May 8, 2026•Document ID: 11032810

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  S248A000015 REV.A

  Date Added:

  May 20, 2026

  Manufacturer:

  JEEP

  Summary

  Poor Audio Quality And Or Static From Wireless Devices

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  Associated Documents

  • DownloadMC-11032810-0001.pdf↗
• May 8, 2026•Document ID: 11032633

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  S248A000015 REV.A

  Date Added:

  May 13, 2026

  Manufacturer:

  JEEP

  Summary

  Poor Audio Quality And Or Static From Wireless Devices

  Associated Products (22)

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  Associated Documents

  • DownloadMC-11032633-0001.pdf↗
• May 7, 2026•Document ID: 11032824

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  08-208-26

  Date Added:

  May 20, 2026

  Manufacturer:

  DODGE

  Summary

  Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub (no charging, no data). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle

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  2026 Chrysler Pacifica2026 Chrysler Voyager2026 Dodge Charger2026 Dodge Durango2026 Jeep Cherokee2026 Jeep Compass2026 Jeep Gladiator2026 Jeep Grand Cherokee2026 Jeep Grand Cherokee L2026 Jeep Grand Wagoneer2026 Jeep Wagoneer2026 Jeep Wagoneer S2026 Jeep Wrangler2026 Ram 15002026 Ram 25002026 Ram 35002025 Chrysler Pacifica2025 Chrysler Voyager2025 Dodge Charger2025 Dodge Durango+ 84 more
  Associated Documents

  • DownloadMC-11032824-0001.pdf↗
• May 7, 2026•Document ID: 11032814

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  111702

  Date Added:

  May 20, 2026

  Manufacturer:

  JEEP

  Summary

  SWITCH - LIFTGATE

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  Associated Documents

  • DownloadMC-11032814-0001.pdf↗
• May 7, 2026•Document ID: 11032647

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  08-208-26

  Date Added:

  May 13, 2026

  Manufacturer:

  CHRYSLER

  Summary

  Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub (no charging, no data). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle

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  Associated Documents

  • DownloadMC-11032647-0001.pdf↗
• May 7, 2026•Document ID: 11032637

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  111702

  Date Added:

  May 13, 2026

  Manufacturer:

  JEEP

  Summary

  SWITCH - LIFTGATE

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  Associated Documents

  • DownloadMC-11032637-0001.pdf↗
• April 28, 2026•Document ID: 11032333

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  111620

  Date Added:

  May 6, 2026

  Manufacturer:

  JEEP

  Summary

  ACTUATOR - A/C AND HEATER

  Associated Products (12)

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  Associated Documents

  • DownloadMC-11032333-0001.pdf↗
• April 28, 2026•Document ID: 11032332

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  111619

  Date Added:

  May 6, 2026

  Manufacturer:

  JEEP

  Summary

  ACTUATOR - A/C AND HEATER

  Associated Products (12)

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  Associated Documents

  • DownloadMC-11032332-0001.pdf↗
• April 24, 2026•Document ID: 11031691

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  S2102000004 REV.C

  Date Added:

  April 29, 2026

  Manufacturer:

  JEEP

  Summary

  WL Front Control Arm Bushing - Handling Link Has Loose

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  Associated Documents

  • DownloadMC-11031691-0001.pdf↗
• April 22, 2026•Document ID: 11031688

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY; ELECTRICAL SYSTEM

  Mfr Comm. #:

  S2523000003 REV.A

  Date Added:

  April 29, 2026

  Manufacturer:

  JEEP

  Summary

  Door Latch, Handle And Ajar Additional Service Information.

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  Associated Documents

  • DownloadMC-11031688-0001.pdf↗
• April 18, 2026•Document ID: 11031455

  Service Bulletin/Repair Instructions
  POWER TRAIN; ENGINE

  Mfr Comm. #:

  18-050-26

  Date Added:

  April 22, 2026

  Manufacturer:

  JEEP

  Summary

  Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0300 - Multiple Cylinder Misfire - In Active or Stored status set during cold start catalyst heating. ● P0301 - Cylinder 1 Misfire - In Active or Stored status set during cold start catalyst heating. ● P0302 - Cylinder 2 Misfire - In Active or Stored status set during cold start catalyst heating. ● P0303 - Cylinder 3 Misfire - In Active or Stored status set during cold start catalyst heating. ● P0304 - Cylinder 4 Misfire - In Active or Stored status set during cold start catalyst heating. ● P0305 - Cylinder 5 Misfire - In Active or Stored status set during cold start catalyst heating. ● P0306 - Cylinder 6 Misfire - In Active or Stored status set during cold start catalyst heating. Customers may also comment on one or more of the following: ● Check engine illuminates when fueling the vehicle while the engine is running. ● Vehicle has a noticeable misfire. ● Vehicle idles rough. ● Engine noise. NOTE: Noise is heard coming from the valvetrain. In addition, the following software enhancement is available: ● Update to prevent customers from driving their vehicles while the Electric Park Brake (EPB) is engaged. Engine torque will be limited to prevent the Rear Drive Unit from being damaged. NOTE: Previously, the EPB would remain engaged without any torque limit which could lead to the Rear Drive Unit being damaged/broken. This bulletin involves reprogramming the PCM with the latest available software.

  Associated Products (2)

  2021 Jeep Grand Cherokee2021 Jeep Grand Cherokee L
  Associated Documents

  • DownloadMC-11031455-0001.pdf↗
• April 15, 2026•Document ID: 11031423

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  08-075-26 REV. A

  Date Added:

  April 22, 2026

  Manufacturer:

  JEEP

  Summary

  Rear Taillamp Condensation Clearing Procedure On occasion, vehicle exterior taillamp assemblies get fogged with a light layer of condensation on the SYMPTOM: inside of the lenses Fig. 1. This may be reported after the lamps have been turned on and brought up to operating temperature, turned off and then rapidly cooled by cold water (such as rain, or the water from a vehicle wash). Lens fogging can also occur under certain atmospheric conditions after a vehicle has been parked outside overnight (i.e. a warm humid day followed by clear cool night). This will usually clear as atmospheric conditions change to allow the condensation to change back into a vapor. Turning the taillamps on will usually accelerate this process. This bulletin is to communicate the procedure for rear taillamp condensation clearing.

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  Associated Documents

  • DownloadMC-11031423-0001.pdf↗
• April 10, 2026•Document ID: 11031339

  Service Bulletin/Repair Instructions
  LANE DEPARTURE: ASSIST

  Mfr Comm. #:

  S2623000024

  Date Added:

  April 15, 2026

  Manufacturer:

  JEEP

  Summary

  U0422-00 Implausible Data From BCM Set In Central ADAS Decision Module (CADM).

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  Associated Documents

  • DownloadMC-11031339-0001.pdf↗
• April 8, 2026•Document ID: 11031338

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY

  Mfr Comm. #:

  S2623000022

  Date Added:

  April 15, 2026

  Manufacturer:

  JEEP

  Summary

  Buzz Squeak Rattle (BSR) Noise From Rear Of Vehicle.

  Associated Products (12)

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  Associated Documents

  • DownloadMC-11031338-0001.pdf↗