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Service bulletin TechTalk7727

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10180594
Published by NHTSA2020-10-02
Manufacturer's numberTechTalk7727
Manufacturer's date2020-09-30
NHTSA componentELECTRICAL SYSTEM; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; INTERIOR LIGHTING

NHTSA's summary

Tech talk discussion about issue with the aux hvac blower and the reading light

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Glass, wipers and mirrors, Heating and air conditioning, Lighting

Vehicles listed
FREIGHTLINER CASCADIA2019

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20V5670002022-02-16. EXTERIOR LIGHTING:BRAKE LIGHTS
20213992021-06-25. Electrical
21V4810002021-06-25. ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES
20212902021-05-14. Lights And Instruments
21V3570002021-05-14. EXTERIOR LIGHTING:HEADLIGHTS:BULBS
20201582020-04-14. Lights And Instruments
20V2140002020-04-14. EXTERIOR LIGHTING
20183872018-07-23. Visual System
18V4910002018-07-20. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
FleetCom_AMP Draw2025-12-06. Other. Fleet Communications for Key off amp draw
SS3076-FTL2025-11-05. Other. Service Solution for P4 Main Mirror Arm Covers Loose - Falling Off
SS3161-FTL2025-01-29. Other. Service Solution for Cascadia intermittent no-start and CPC not configured message
FAB3372025-01-07. Other. FAB 337 for 4th and Fifth Gen Cascadia RP1226 - Progressive Low Voltage Disconnect (PLVD)
SS3142-FTL2024-12-04. Other. Service Solution for J1939 CAN issues for vehicles equipped w/ Bendix Side Radar w/ expanded field of view
CXA 8_24_BCA CLDS TSB2024-09-07. Other. CX Advocate for Technical Service Bulletin for New Battery Cable Access (BCA) Parts for Improved Cold Weather Functionality (TSB54-369-FTL, TSB54-095-WST)
TSB54-369-FTL2024-08-02. Service bulletin. Technical Service Bulletin for New Battery Cable Access Parts for Improved Cold Weather Functionality
MYCOM_07192024-22024-08-02. Other. My Communications for New Espar HS3 Heater and Extreme Insulation
SS3150-FTL2024-08-02. Other. Service Solution for ECP Solenoid Interim Service Replacement Parts
SF673 POSTCARD LARGE2024-06-07. Service campaign. Field Service Campaign Owner Reminder Postcard large population