WenmarOpen by Wenmar Pro

Service bulletins for the 2018 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.

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

By type

By component

By trouble code

Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
05002222022-05-31. Service bulletin. EQUIPMENT; ENGINE; ELECTRICAL SYSTEM. Front Click Noise at Low Speed Turns This bulletin involves installing a friction disc kit on both front hub bearings and rotors. The customer may comment on the following: When making a sharp turn at low speed (parking lot) maneuvers, a click noise is heard. Most of the time the noise can be heard if the windows are open.
08-094-212021-06-28. Service bulletin. EQUIPMENT; EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS. UKA and UKG Radio Enhancements This bulletin involves updating the radio software level to 1848.35. Customers may experience one or more of the following:Radio display screen flickers. Clock loses 6 seconds per day (2019 JL with UKA). Radio resets with RPM less than 1000 RPM (2020 JL with UKG and 3.0L Diesel - EXJ).
08-074-212021-06-28. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. UGQ, UGV, UJV and UJQ Radio Enhancements This bulletin involves inspecting the software level to see if the radio needs oneor two USB flash drive(s) to update the radio software level to 39.2. Customers may experience one or more of the following: Voice recognition (VR) fails while road names are written in Catalan. After the update to software level MR-28.31, the Amperometer inside Jeepskills shows values too high. The radio may lose some or all programmed presets. Volume blocked/uncontrollable. Heating Steering wheel and seat SK greyed out. Eco Drive trips saved issue. Radio may reset, turn itself off and then back on again. Radio display screen lock up. Park assist chime will continue to chime after the vehicle is turned off. Frequent pop-ups during startup saying device not connected - Uconnect LIVE. Radio will display the incorrect speed limit in kph when approaching a roadspeed camera(2018 WK Only). Uconnect Live Apps restricted to only MyCar, ecoDrive and Jeep Skills(2018 WK Only). Russian language missing in the radio setting menu(2018 WK with UGQ Only). If the radio is set for Russian language, UConnect displays unknown symbolson the ?Off Road Page?(2018 WK with UGQ Only). Could not disable the feature for the heated seat and heated steering wheelturned on automatically at startup(2018 WK with UGQ Only). In addition the following enhancements are included: Navigation improvements. Bluetooth improvements. VR improvements. Russian language enhancements (2018 WK with UGQ Only)
S2108000127 Rev.2021-06-28. Service bulletin. EQUIPMENT. Radio Reboot Continually
S21080001302021-06-28. Service bulletin. EQUIPMENT. Bubbles Or Delamination On The Radio Display
S21080001272021-06-28. Service bulletin. EQUIPMENT. Radio Reboot Continually
S21080001192021-06-28. Service bulletin. EQUIPMENT. Apple CarPlay Malfunctioning, Does Not Launch Or Is Cutting In An Out On Wired And Wireless Connection, Radio Stuck When IPhone Is Connected
S21080001202021-06-28. Service bulletin. EQUIPMENT. Radio Volume Uncontrollable Or Changing On Its Own
S1708000118 Rev.2021-05-24. Service bulletin. EQUIPMENT:ELECTRICAL. Battery Drain Concern, Dual USB Port Normal Operational Draw, Extended Illumination After Key Off
S21080000932021-05-24. Service bulletin. BACK OVER PREVENTION:DISPLAY FUNCTION; EQUIPMENT. Apple CarPlay Does Not Work Or Not Connecting
S1908000048 Rev.2021-04-26. Service bulletin. EQUIPMENT. Chime Stuck On In The Audio System
S21080000802021-04-26. Service bulletin. EQUIPMENT. Radio Replacement Reset Routine, Radio Has Missing Icons Or Are Grayed Out
S21230000102021-03-15. Service bulletin. ELECTRICAL SYSTEM:WIRING; EQUIPMENT. Vehicle Sway While Being Flat Towed Behind A RV
S21080000472021-03-15. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; LANE DEPARTURE:LANE KEEP:NAVIGATION SYSTEM/SOFTWARE. Jeep Off Road Pages Missing Latitude And Longitude Coordinates
S21080000452021-03-15. Service bulletin. EQUIPMENT:ELECTRICAL. Favorite Song On-Air Alert List Empty
S1708000055 Rev.2021-03-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Overcharging/Undercharging DTC?s Interior And Exterior Lamps Flicker, Electronic Stop/Start (ESS) Operates Intermittently, Crank No Start, Vehicle Will Not Restart After ESS Stop
23-018-20 REV. E2021-03-01. Service bulletin. SEATS; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Active Head Restraint (AHR) Inadvertent Deployment - X88 Warranty Extension This bulletin involves inspecting the sled bracket striker pin and possibly replacinga front seat AHR that has inadvertently deployed. Customers may comment on the following: The AHR is deployed on one or both front seats and will not reset.
S2008000031 Rev.2021-02-16. Service bulletin. EQUIPMENT. Low Charging Voltage Displayed On Cluster
23-018-20 REV. D2020-12-28. Service bulletin. EQUIPMENT; SEATS. Active Head Restraint (AHR) Inadvertent Deployment - X88 Warranty Extension This bulletin involves inspecting the sled bracket striker pin and possibly replacing a front seat AHR that has inadvertently deployed. Customers may comment on the following:The AHR is deployed on one or both front seats and will not reset.
S1625000005 Rev.2020-12-28. Service bulletin. EQUIPMENT; FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. (Rev. A) Malfunction Indicator Light (MIL) Illuminated. Service Diesel Exhaust Fluid (DEF) System ? See Dealer Soon Message on Electronic Vehicle Information Center (EVIC) Along With Possible Diagnostic Trouble Code (DTC) P241D - SCR Inducement - Forced Engine Shutdown.
S2025000001 Rev.2020-12-28. Service bulletin. EXTERIOR LIGHTING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); EQUIPMENT. (Rev. B) Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
S1908000028 Rev.2020-12-28. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. (Rev. A) Power Inverter Load Ratings
23-018-20 REV. D2020-12-21. Service bulletin. SEATS; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Active Head Restraint (AHR) Inadvertent Deployment - X88 Warranty Extension This bulletin involves inspecting the sled bracket striker pin and possibly replacing a front seat AHR that has inadvertently deployed. Customers may comment on the following:The AHR is deployed on one or both front seats and will not reset.
699212020-12-21. Service bulletin. SEATS:MID/REAR ASSEMBLY:HEAD RESTRAINT; EQUIPMENT ADAPTIVE/MOBILITY; SEATS:FRONT ASSEMBLY:HEAD RESTRAINT; EQUIPMENT. Warranty Bulletin D-20-10 (X88) Active Head Restraint - Select 2011-2018 Dodge Durango (WD and Select 2011-2018 Jeep Grand Cherokee (WK) (Rev. B)
S20080001722020-12-21. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Screen Flickering When Using Apple CarPlay Or Android Auto.

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