# Service bulletin S1721000016 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. - Type: Service bulletin - NHTSA id: 10177477 - Published by NHTSA: 2020\-07\-27 - Manufacturer's number: S1721000016 - Manufacturer's date: 2020\-06\-05 - NHTSA component: ELECTRICAL SYSTEM; EQUIPMENT ## NHTSA's summary Service 4wd Light On, Message AWD System Service Required ## The document - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10177477-0001.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10177477-9999.pdf) The document is the manufacturer's. This site does not hold it. ## Components Electrical system, Equipment and accessories ## Vehicles listed - 2014 to 2020 JEEP CHEROKEE ## Recalls for the same vehicles and component - [23V338000](/recalls/nhtsa/23V338000.md), 2023-05-11: STRUCTURE:BODY:HATCHBACK/LIFTGATE; ELECTRICAL SYSTEM:WIRING: REAR COMPARTMENT/TRUNK - [18V917000](/recalls/nhtsa/18V917000.md), 2018-12-20: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL - [18V524000](/recalls/nhtsa/18V524000.md), 2018-08-09: ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD - [18V332000](/recalls/nhtsa/18V332000.md), 2018-05-17: ELECTRICAL SYSTEM:SOFTWARE; VEHICLE SPEED CONTROL:CRUISE CONTROL; ELECTRICAL SYSTEM:WIRING - [2017663](/recalls/tc/2017663.md), 2017-12-22: Accessories - [17V824000](/recalls/nhtsa/17V824000.md), 2017-12-21: EQUIPMENT - [17V543000](/recalls/nhtsa/17V543000.md), 2017-08-31: EQUIPMENT:OTHER:LABELS; WHEELS:RIM - [2015588](/recalls/tc/2015588.md), 2015-12-09: Accessories - [15V826000](/recalls/nhtsa/15V826000.md), 2015-12-09: STRUCTURE:BODY:HATCHBACK/LIFTGATE; ELECTRICAL SYSTEM:WIRING: REAR COMPARTMENT/TRUNK - [15V461000](/recalls/nhtsa/15V461000.md), 2015-07-23: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC. ## Other bulletins for the same vehicles and component - [08\-292\-26](/bulletins/11035316.md), 2026-07-29, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM. Unable To Clear C1494\-07 And C14A9\-00 After 45A Recall Technicians may experience the following: SYMPTOM: ● wiTECH displays a mismatch error after performing recall 45A. - [03\-002\-26](/bulletins/11035039.md), 2026-07-18, Service bulletin: ENGINE; ELECTRICAL SYSTEM. Stop/Start Illuminated, 0x22 During Fork Wear Routine Technicians may experience the following: SYMPTOM: ● Negative response 0X22 after Recall 01C flash triggers one or more communication codes with controllers. - [S2523000003 REV.A](/bulletins/11031688.md), 2026-04-29, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. Door Latch, Handle And Ajar Additional Service Information. - [08\-075\-26 REV. A](/bulletins/11031423.md), 2026-04-22, Service bulletin: ELECTRICAL SYSTEM. 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. - [S1408000384 REV.J](/bulletins/11030035.md), 2026-03-13, Service bulletin: ELECTRICAL SYSTEM. Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor \(IBS\) State of Charge \(SOC\) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes \(DTCs\), or Battery Warning Lamp On - [08\-075\-26](/bulletins/11029670.md), 2026-03-05, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. 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. - [S1408000384 REV.I](/bulletins/11028904.md), 2026-02-19, Service bulletin: ELECTRICAL SYSTEM. Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor \(IBS\) State of Charge \(SOC\) Inaccurate, Battery Charging Message, Presence of IBS Related Diagnostic Trouble Codes \(DTCs\), or Battery Warning Lamp On - [109872](/bulletins/11028779.md), 2026-02-12, Service bulletin: ELECTRICAL SYSTEM. POWER TRANSFER UNIT \- NONE - [109871](/bulletins/11028778.md), 2026-02-12, Service bulletin: ELECTRICAL SYSTEM. POWER TRANSFER UNIT \- NONE - [9100736](/bulletins/11026652.md), 2025-12-17, Service bulletin: ELECTRICAL SYSTEM. Verify "Z" part number availability. Order a "Z" part number for all Exchange Orders: Warranty, Mopar, Customer pay and Service contract. Order"68" part number for New unsold units only JSON: [/v1/bulletins/10177477](/v1/bulletins/10177477) [Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20S1721000016&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10177477&vehicle=Service%20bulletin%20S1721000016)