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Service bulletin TSN 31-06

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 id10193161
Published by NHTSA2021-05-13
Manufacturer's numberTSN 31-06
Manufacturer's date2014-08-15
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM; STRUCTURE:FRAME AND MEMBERS

NHTSA's summary

TSN for the Thermo King Tripac APU located on the right hand frame rail back of cab / sleeper is installed such that the top of the APU is 76mm (3 inches) above the top flange of the frame rail. Under certain turning conditions and fifth wheel configurations it is possible for the trailer to contact the top cover of the Tripac APU.

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

Body and frame, Electrical system, Equipment and accessories

Vehicles listed
FREIGHTLINER CASCADIA2009

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

Recalls for the same vehicles and component
17V8100002017-12-15. EQUIPMENT
15V1270002015-03-04. ELECTRICAL SYSTEM
12V4050002012-08-16. EQUIPMENT
20112362011-06-22. Electrical
11V3300002011-06-21. ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES
10V1020002010-03-16. ELECTRICAL SYSTEM:SOFTWARE
09V0240002009-01-22. ELECTRICAL SYSTEM
20090092009-01-12. Electrical

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
543022023-05-22. Service bulletin. ABS Light illuminating in the ICU.
8V4912023-05-22. Service bulletin. ICUC Bulb check function.
SB88-0422022-02-05. Service bulletin. Revised Freightliner Service Bulletin for Hood-Mounted Splash Shield Rivet Replacement. Minor note: added an update of document previously submitted. The related VMRS codes are added
P3SALESCABEND2021-08-04. Service bulletin. End of Production for the Freightliner P3 Cascadia Sales Cabs. Due to low production volumes, DTNA will be discontinuing the production of the Freightliner Cascadia P3 Sales Cabs.
SS37042021-06-10. Service bulletin. Cascadia Fault codes 6.0
SS4690682021-06-09. Service bulletin. SS 469068 Cascadia SAM Cab, SAM Chassis, MSF and CGW Hardware Compatibility
SS10331212021-06-09. Service bulletin. SS 1033121 Adding a Fan Override Switch (Legacy Cascadia)
SS10336382021-06-09. Service bulletin. SS 1033638 - Power Window Express Down Module Discontinued
FAB1542021-05-18. Service bulletin. Freightliner Action Bulletin FAB154 New options for Cascadia
FAB1532021-05-18. Service bulletin. Freightliner Action Bulletin FAB153 New Harness Highway for Cascadia