Dodge Durango 2020 — technical service bulletin
Bulletin 9004226 · NHTSA communication 10175437 · issued Mar 18, 2020
Technical service bulletin
communication type
Equipment
component
2020
model years
1
vehicle entries
Official summary
TUBE, Coolant outlet (Rear Heater Return Line) 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.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.