# Service bulletin TechTalk7659

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.

- Type: Service bulletin
- NHTSA id: 10180424
- Published by NHTSA: 2020\-09\-30
- Manufacturer's number: TechTalk7659
- Manufacturer's date: 2020\-09\-10
- NHTSA component: EQUIPMENT:APPLIANCE:AIR CONDITIONER

## NHTSA's summary

Tech Talk discussion on A/C on 2016 Cascadia.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10180424-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10180424-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Equipment and accessories, Heating and air conditioning

## Vehicles listed

- 2016 FREIGHTLINER CASCADIA

## Recalls for the same vehicles and component

- [17V810000](/recalls/nhtsa/17V810000.md), 2017-12-15: EQUIPMENT
- [16V143000](/recalls/nhtsa/16V143000.md), 2016-03-09: EQUIPMENT:APPLIANCE:AIR CONDITIONER; EQUIPMENT:ELECTRICAL
- [2016113](/recalls/tc/2016113.md), 2016-03-08: Heater And Defroster

## Other bulletins for the same vehicles and component

- [SB54\-358](/bulletins/10235642.md), 2023-05-05, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. Revised Freightliner Service Bulletin for Converting CTP1 to CTP2. Description of Revisions: This bulletin replaces the version dated 11/28/2022. The CTP replacement part number has been updated.
- [SB54\-358](/bulletins/10226982.md), 2022-12-03, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. Freightliner Service Bulletin for Converting CTP1 to CTP2.
- [SB54\-278](/bulletins/10194363.md), 2021-05-24, Service bulletin: EQUIPMENT:ELECTRICAL. Powernet Troubleshooting Guide: Batteries, Path, Alternator, and Starter
- [SB20\-58](/bulletins/10194361.md), 2021-05-24, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY; EQUIPMENT. Early EPA07 QLD Radiator Replacement. As part of the changes made for early production EPA07 engines, the transmission oil cooler was moved into the radiator, and transmission oil cooler lines equipped with Gates Quick\-Detach \(QLD\) connectors were fitted.
- [FTLCAE167\-2016](/bulletins/10193591.md), 2021-05-17, Service bulletin: VISIBILITY; EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Important Update for Parked HVAC System Options
- [TSN 32\-06 REV A](/bulletins/10193230.md), 2021-05-13, Service bulletin: SUSPENSION; EQUIPMENT. TSN for all Cascadia vehicles equipped with Airliner 40K and 40K extra duty rear suspensions \- Customer complaints of loose fasteners at the rear suspension crossmember where the c\-channel attaches to the gussets
- [TSN 31\-10](/bulletins/10193165.md), 2021-05-13, Service bulletin: EQUIPMENT; STRUCTURE. TSN for all Cascadia vehicles equipped with the inverted U end of frame closing crossmember.\- Customer complaints of loose fasteners at the end of frame closing crossmember where the c\-channel attaches to the gussets.
- [TSN 31\-09](/bulletins/10193164.md), 2021-05-13, Service bulletin: TRAILER HITCHES; EQUIPMENT. TSN for all Cascadia vehicles equipped with plate mounted fifth wheels and outboard mounting angles \- Customer complaints of loose fasteners at the fifth wheel plate to outboard angles.
- [WI21\-008](/bulletins/10190549.md), 2021-04-23, Service bulletin: EQUIPMENT. Warranty Information Letter announcing DTNA is adjusting the Standard Repair Times \(SRTs\) shown. The updated times will be applied to repair orders opened on or after April 5, 2021.
- [DT12 Trans Chafe](/bulletins/10190020.md), 2021-04-08, Service bulletin: EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN. DTNA received a field notification on multiple units regarding diagnostic fault codes that were found to be causing issues to the After Treatment Control Module \(ACM\). These fault codes indicated that the ACM communication message was not received by the Motor Control Module \(MCM\) which in certain cases, led to a 25% engine de\-rate situation. Further diagnosis revealed that the DT12 wiring harness was chafing and contacting the transmission TCU case. To reduce potential chafing areas, the proposed short\-term containment was to route the wiring harness using additional tie straps. This communication applies to Freightliner and Western Star vehicles built with DT12 transmissions.

JSON: [/v1/bulletins/10180424](/v1/bulletins/10180424)

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