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Service bulletin sb2652 DT12 PTO

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 id10158006
Published by NHTSA2019-04-08
Manufacturer's numbersb2652 DT12 PTO
Manufacturer's date2019-02-25
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT; ELECTRICAL SYSTEM:WIRING; EQUIPMENT ADAPTIVE/MOBILITY

NHTSA's summary

DT12 PTO Upfit

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, Equipment and accessories, Labels and manuals, Transmission and driveline, Automatic transmission, Wiring and fuses

Vehicles listed
FREIGHTLINER CASCADIA2020

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

Recalls for the same vehicles and component
19V1370002019-02-27. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL)

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
TechTalk81342021-04-06. Service bulletin. Tech Talk continuing discussion on SCR conversion codes only when bobtailing.
20TS-072020-10-21. Service bulletin. Technical Service Letter for Cold Weather Faults on GHG17/21 DD13 with MCM Software Version 14. Due to colder weather, there may be an increase in the frequency of faults, noted below, on GHG17/21 DD13 trucks built after June 5th 2019. This is due to a calibration issue in the current MCM software (14.1.1.5 or 14.2.1.3). New software is scheduled for release in the first quarter of 2021 that will address these faults.
CALHIGHCURRENT2020-03-03. Service bulletin. Customer Advisory Letter that an inspection to determine if the high current breaker has been bypassed.
17TS-12REV2020-01-03. Service bulletin. Technical Service Letter for GHG17 Heavy Duty Engine Platform 1-BOX Aftertreatment System (ATS) Wire Harness experiencing chaffing caused by vibration and dirt collecting in the harness conduit.
DOC-10341662019-04-08. Service bulletin. SS 1034166 New Cacadia With Cummins Engine and Eaton UltraShift PTO Engagement