WenmarOpen by Wenmar Pro

Service bulletins for the 2020 Dodge Durango

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.

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

By type

By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
S21180000092022-10-17. Service bulletin. ENGINE AND ENGINE COOLING. Customer complains of a MIL-on condition. Upon further inspection, there is a Diagnostic Trouble Code (DTC) P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) set in the PCM.
S21180000092022-10-17. Service bulletin. ENGINE AND ENGINE COOLING. Customer complains of a MIL-on condition. Upon further inspection, there is a Diagnostic Trouble Code (DTC) P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) set in the PCM.
S22090000022022-10-17. Service bulletin. ENGINE. Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. When performing diagnosis, an internal engine concern may be suspected.
23023202022-09-26. Service bulletin. ENGINE AND ENGINE COOLING. Rear Heater Coolant Tube Repair This bulletin involves inspecting and possibly repairing the rear heater coolant return tube. Customers may comment on one or more of the following:A coolant leak or fluid appearing from under the vehicle. Elevated engine coolant temperature and/or indication of overheating.
S21090000042022-09-26. Service bulletin. ENGINE AND ENGINE COOLING. Issue involves overheating, running hot, coolant leaks and related symptoms after a Mopar replacement engine has been installed in the vehicle.
S2008000023RevA2022-09-26. Service bulletin. ENGINE AND ENGINE COOLING. No Crank No Start, Click No Start
S1809000007RevC2022-09-26. Service bulletin. ENGINE AND ENGINE COOLING. Customer Complaint May Include Engine Oil Leak Or Consumption
S22090000022022-09-26. Service bulletin. UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL. Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. When performing diagnosis, an internal engine concern may be suspected.
90042262022-09-26. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING; POWER TRAIN. TUBE, Coolant outlet (Rear Heater Return Line) Be advised, Mopar does offer rear coolant line repair kits for MY 2018 - 2020 vehicles for coolant leak repair. Please see TSB 23-023-20 for kit part numbers and instructions. If looking to replace the rear heater line due to a rub through from the trans oil heater (TOH) line clamp on the engine side: 1) Rotate the tangs on the clamp towards the transmission and out of the direction of the rear heater line 2) Adjust the TOH line by pushing it towards the engine to increase clearance between the TOH line and rear heater line.
18089192022-09-15. Service bulletin. ENGINE AND ENGINE COOLING. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
04-001-212022-08-22. Service bulletin. ENGINE AND ENGINE COOLING. Pentastar Upgrade Oil Fill Level after an Oil Change This bulletin involves rechecking the oil fill level after filling the engine to the correct specifications. The customer may describe that after an oil change they check their oil fill level and it is showing overfilled on the oil dipstick.
S2108000024 Rev.2022-07-18. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY; ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. Crank No Start Condition, No DTC?s
S21080000242022-07-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. Crank No Start Condition, No DTC?s
S1709000010 Rev.2022-07-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. Upon investigation, it may be found that there is excessive camshaft lobe wear/lifter wear (roller failure) on one or more cam lobes and that camshaft/lifter replacement is necessary.
S18090000072022-05-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. Customer Complaint May Include Engine Oil Leak Or Consumption
S20080000232022-05-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. No Crank No Start, Click No Start
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.
S22090000022022-05-31. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE. Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. When performing diagnosis, an internal engine concern may be suspected.
S21180000092021-06-28. Service bulletin. ENGINE AND ENGINE COOLING. Customer complains of a MIL-on condition. Upon further inspection, there is a Diagnostic Trouble Code (DTC) P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) set in the PCM.
S1809000007 Rev.2021-04-26. Service bulletin. ENGINE AND ENGINE COOLING. Customer complaint may include engine oil leak/consumption.
90042262021-03-15. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER. TUBE, Coolant outlet (Rear Heater Return Line) Be advised, Mopar does offer rear coolant line repair kits for MY 2018 - 2020 vehicles for coolant leak repair. Please see TSB 23-023-20 for kit part numbers and instructions. If looking to replace the rear heater line due to a rub through from the trans oil heater (TOH) line clamp on the engine side: 1) Rotate the tangs on the clamp towards the transmission and out of the direction of the rear heater line 2) Adjust the TOH line by pushing it towards the engine to increase clearance between the TOH line and rear heater line.
09-013-20 REV. A2021-03-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:IGNITION:COIL:SPARK PLUGS; ENGINE. 3.6L Pentastar Upgrade Spark Plug Internal Crack This bulletin involves replacing all six spark plugs. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire. P0305 - Cylinder 5 Misfire. P0306 - Cylinder 6 Misfire. Customers may also comment on the following:Rough running engine.
09-013-202021-03-01. Service bulletin. ENGINE; EQUIPMENT; ELECTRICAL SYSTEM. 3.6L Pentastar Upgrade Spark Plug Internal Crack This bulletin involves replacing all six spark plugs. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire. P0305 - Cylinder 5 Misfire. P0306 - Cylinder 6 Misfire. Customers may also comment on the following: Rough running engine.
S1908000083 Rev.2021-03-01. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Check Engine Light Illuminated, Stop Start Function Inoperative
S2108000024 Rev.2021-02-16. Service bulletin. ENGINE AND ENGINE COOLING. Crank No Start Condition, No DTC?s

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