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Service bulletin SS1034797

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 id10186666
Published by NHTSA2021-02-04
Manufacturer's numberSS1034797
Manufacturer's date2021-01-29
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Service Solution for M2 108SD 114SD Coolant Level Sensor PN 06-93316-002. This bulletin was updated 1/28/2021 to reflect the removal of the backshell P/N 23-13302-633, as the added length of the backshell makes it difficult to route the harness around the lower mounting bolt of the surge tank.

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

Engine

Vehicles listed
FREIGHTLINER 108SD2019, 2020, 2021, 2022
FREIGHTLINER 114SD2022
FREIGHTLINER BUSINESS CLASS M22022

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

Recalls for the same vehicles and component
20204082020-09-01. Engine
20V5270002020-09-01. ELECTRICAL SYSTEM:WIRING; ENGINE AND ENGINE COOLING

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
CXA 03_26_Surge Tank2026-04-02. Other. CX Advocate for discolored coolant surge tanks (24CSA-20)
FleetCom_Heater Core2026-01-08. Other. Fleet Communications for Heater Core Plugging
TSB54-377-FTL2026-01-07. Service bulletin. Technical Service Bulletin Low Coolant Sensor
CXA_10_25_Conmet Oil Pan2025-11-05. Other. CX Advocate for ConMet Oil Pan Insert Additional Issues
24CSA-19Rev2025-09-02. Other. Revised Customer Service Annoucement for No Trouble Found Heavy Duty Engine Product (HDEP) Oil Separator Leaks
CXA 3_25_NOx2025-04-02. Other. CX Advocate for NOx conversion low faults
CXA 2_25_Turbo Oil Drain2025-03-04. Other. CX Advocate for turbo oil drain cracking
CXA 2_25_NOx2025-03-04. Other. CX Advocate for NOx conversion low faults
TSB01-002-DDC2025-03-04. Service bulletin. Technical Service Bulletin for Gen 5 DD13 Turbocharger Oil Return Line Cracks
CXA 1_16_Turbo Oil Drain2025-01-29. Other. CX Advocate for turbo oil drain cracking