WenmarOpen by Wenmar Pro

Service bulletins for the 2021 Jeep Grand Cherokee

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1325 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
S2108000012RevB2022-09-26. Service bulletin. EXTERIOR LIGHTING. Auto High Beams Do Not Operate
S21230000102022-09-26. Service bulletin. STRUCTURE:BODY; STRUCTURE: UNDERRIDE. Vehicle Sway At Very Low Speed While Being Flat Towed Behind A RV
90043622022-09-26. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. GLASS, Sunroof If these parts are being ordered to fix a Sunroof wind noise or water leak complaint, please send an email to FCA Redacted Content before disassembly. If no response in 15 minutes, please proceed with the repair
08043222022-09-26. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This bulletin involves reprogramming the HVAC module with the latest available software.
08069222022-09-26. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Flash: Smart Lighting Module Left (SLML) and Smart Lighting Module Right (SLMR) Updates This bulletin involves reprogramming the SLML and SLMR with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: B2834-00 - Right Headlamp Assembly Performance. B2835-00 - Left Headlamp Assembly Performance. Customers may experience one or more of the following: Headlamps go into a fail safe mode with low beam at reduced intensity with position and side marker lights on. ?Service Headlamp? message appears in the information cluster. Headlamps only function on low beam, park lamp and side marker lamps.
18061222022-09-26. Service bulletin. SERVICE BRAKES, HYDRAULIC; ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Incorrectly Assembled Purge Flow Tube Inside Tube Elbow This bulletin involves inspecting and if needed reposition the purge tube inside the tube elbow. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find oneor more of the following Diagnostic Trouble Codes (DTCs). P0441 - EVAP Purge System Performance. P0452 - EVAP Pressure Switch ?A? Stuck Closed.
23012222022-09-26. Service bulletin. EQUIPMENT. Glove Box Hard To Close This bulletin involves replacing the glove box bumpers. Customers may comment on the following: The glove box is hard to close.
18052222022-09-26. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customer may experience one or more of the following: Rough running idle after engine start and hesitation, or stumble feel during a cold engine drive away. Shift quality related to AC clutch cycling - bump felt during transmission shift if the AC turns on, or off, at the exact same time a shift happens. Customer or technician may also experience the following:Generic Scan Tool connection reports Emissions as OBDII, should be reporting as Emissions as OBDI for Export(APAC, EMEA and LATAM only).
0804322REVA2022-09-26. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:COMPRESSOR:MODULE (ACCM). Flash: Heating Ventilation and Air Conditioning (HVAC) Updates This bulletin involves reprogramming the HVAC module with the latest available software. Customers may experience the following:High pitch whistle coming from the dash when the blower motor is turned on.High pitch whistle originated from the defroster door when the HVAC unit in either Hi-Level (panel and defrost) or Bi-Level (panel and floor) modes. May be worsened when running the front airflow at blower bar 1-2 and rear airflow at blower bar 5-7.
08048222022-09-26. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. UBR UER and UFR Radio Enhancements This bulletin involves updating the radio (UBR and UER) software level from the current level R34.00.49 or R37.03.58 to R41.00.56This bulletin involves updating the radio (UFR) software level to 34.00.49. Customers may experience one or more of the following: Auto button on climate control screen not present. When Voice Recognition (VR) button is pressed on radio, wrong message is displayed. Displays ?Bluetooth® Pairings? instead of connect Apple Carplay® or Android Auto® device. Wi-Fi hotspot password always shows "null". Customer can't use feature. Wi-Fi hotspot name not recognized on customer?s cellular device. Language selection on radio can not be saved after selecting. Wrong date format displayed using Korean language. Radio display is blank (rear view camera still operable). Radio touchscreen inoperative. Zoom In/Out button inoperative for rear view camera. Rear Cross Path Mode and Blind Spot chime keeps playing when object is no longer present. Irregular chime frequency. Time format does not change from military to 12-hour format. ABC Jump Keyboard will not display. Incorrect DTC implementation for Media Hub disconnection. Pressing mute hard key while on phone call does not mute microphone. Adjust clock settings shortcut in home screen does not navigate you to the right screen. SXM radio stuck on current channel, no audio and can't navigate to other channels using soft keys or knob. Media port working intermittently and setting and may set Diagnostic Trouble Codes (DTC's): B15A1-00 - Media Port 1 Connection. B15A3-00 - Media Port 3 Connection. B15A4-00 - Media Port 4 Connection. Unable to connect vehicle Wi-Fi hot spot. SXM radio does not retain the same channel after the vehicle has been shut off.
08050222022-09-26. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE. Flash: Body Control Module (BCM) Updates This bulletin involves reprogramming the BCM with the latest available software. The customer may experience one or more of the following: Fuel Level and Range (distance to empty) (DTE) will both increase after sleep cycle. Fuel Level % would increase when parked on a slope. Fuel gauge remains at full for 107 km (67 miles) vs. 73 km (45 miles). After fueling up with 68 liters (18.1 gallons) of fuel, the fuel gauge only will read around 1/4 tank and the low fuel lamp is still illuminated. After 10 minutes of driving, the gauge only read around 3/4 tank and the fuel lamp is still on. Refuel button is pressed for a short duration of 500ms or less at key off, then the fuel door is not opened. When the phone is charging on the Wireless Charging Pad Module (WCPM) and the fob is near, the customer opens then closes the liftgate, the IPC will pop up "key fob has left the vehicle" message. On vehicles equipped with Electronic Steering Lock (ESL), it requires 3 Start/Stop button presses to transition from key off to key run when the vehicle was in deep sleep.
0804322REVB2022-09-26. Service bulletin. VEHICLE SPEED CONTROL; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Flash: Heating Ventilation and Air Conditioning (HVAC) Updates This bulletin involves reprogramming the HVAC module with the latest available software. Customers may experience the following:High pitch whistle coming from the dash when the blower motor is turned on.High pitch whistle originated from the defroster door when the HVAC unit in either Hi-Level (panel and defrost) or Bi-Level (panel and floor) modes. May be worsened when running the front airflow at blower bar 1-2 and rear airflow at blower bar 5-7
08041222022-09-26. Service bulletin. ELECTRICAL SYSTEM. Flash: Amplifier (AMP) Diagnostic and System Updates This bulletin involves reprogramming the AMP with the latest available software. Customers may experience the following:Active Noise Cancellation (ANC) drone noise at 950 between 1,000 RPM, during a start up.The AMP may set B221F-00 (Amplifier Internal) erroneously, it does not affect Active Noise Cancelation (ANC) performance. If B221F-00 is a stored fault update the AMP with appropriate software. If fault is active, follow normal DTC diagnostics.
Z33Revision12022-09-26. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:COMPRESSOR:MODULE (ACCM). Customer Satisfaction Notification Z33 Heating Ventilation AC Module
825812022-09-26. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Warranty Bulletin D-20-13-13 STAR Center Uconnect 5 (R1) Radio Pre-Authorization Program ? Select Radios (New and Exchange) ?2021 - 2022 Jeep Grand Cherokee (WL), 2022 Wagoneer and Grand Wagoneer (WS), 2022 Ram 1500 Pickup (DS/DT) and 2022 Ram Heavy Duty Pickup (DD/DF/DJ/ DP/D2) (Rev. D)
S22020000032022-09-26. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SUSPENSION. Low Air Mass C15D9-00 DTC Service Air Suspension Message
S22230000222022-09-26. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE. Power Liftgate Inoperative Or Intermittently Will Not Open Or Close.
S21080002362022-09-26. Service bulletin. VISIBILITY:WINDSHIELD. Windshield HUD (Head Up Display) Display Features
S21210000142022-09-26. Service bulletin. POWER TRAIN:DRIVELINE:DRIVESHAFT; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; UNKNOWN OR OTHER. Service 4WD Message Illuminated. Diagnostic Trouble Code (DTC) C1472-92 ? Transfer Case Clutch Control ? Performance or Incorrect Operation.
S21080001772022-09-26. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER:SENSOR/SENDING UNIT. The Odometer Is Flashing / Blinking
S2108000177RevB2022-09-26. Service bulletin. ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER:SENSOR/SENDING UNIT. The Odometer Is Flashing / Blinking (Document published to dealers has a February 2022 date indicated incorrectly)
S22080000732022-09-26. Service bulletin. ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM; UNKNOWN OR OTHER. No Start, After Flash And Or PCM Replace, DTC P0513 Invalid Skim Key Setting
S22240000032022-09-26. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. AC Does Not Blow Cold (Rev. A not indicated on final document)
TSB0804322RevB2022-09-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:ENGINE:SOLENOID/ACTUATOR. AC Does Not Blow Cold
S22080000642022-09-26. Service bulletin. ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS; ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN; AIR BAGS. Check Engine Light Is On. P0480 Cooling Fan 1 Control Circuit/Open

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.