# Service bulletin 20TS\-08REV

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: 10187834
- Published by NHTSA: 2021\-03\-01
- Manufacturer's number: 20TS\-08REV
- Manufacturer's date: 2021\-02\-19
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

Revised Technical Service Letter for Fault Code SPN 2629 FMI 10 on GHG21 936.917 DD8 Dual Stage Turbo with MCM Software Version 14.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10187834-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10187834-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2018 FCCC XCR
- 2018 to 2021 FREIGHTLINER 108SD
- 2018 to 2021 FREIGHTLINER 114SD
- 2018 to 2021 FREIGHTLINER BUSINESS CLASS M2
- 2019 to 2021 FREIGHTLINER ECONIC SD

## Recalls for the same vehicles and component

- [2020408](/recalls/tc/2020408.md), 2020-09-01: Engine
- [20V527000](/recalls/nhtsa/20V527000.md), 2020-09-01: ELECTRICAL SYSTEM:WIRING; ENGINE AND ENGINE COOLING

## Other bulletins for the same vehicles and component

- [FleetCom\_Heater Core](/bulletins/11027493.md), 2026-01-08, Other: ENGINE. Fleet Communications for Heater Core Plugging
- [CXA\_10\_25\_Conmet Oil Pan](/bulletins/11024958.md), 2025-11-05, Other: ENGINE. CX Advocate for ConMet Oil Pan Insert Additional Issues
- [CXA 3\_25\_NOx](/bulletins/11016309.md), 2025-04-02, Other: ENGINE. CX Advocate for NOx conversion low faults
- [CXA 2\_25\_Turbo Oil Drain](/bulletins/11014819.md), 2025-03-04, Other: ENGINE. CX Advocate for turbo oil drain cracking
- [CXA 2\_25\_NOx](/bulletins/11014818.md), 2025-03-04, Other: ENGINE. CX Advocate for NOx conversion low faults
- [CXA 1\_16\_Turbo Oil Drain](/bulletins/11013206.md), 2025-01-29, Other: ENGINE. CX Advocate for turbo oil drain cracking
- [CXA 1\_16\_NOx](/bulletins/11013204.md), 2025-01-29, Other: ENGINE. CX Advocate for NOx conversion low faults
- [CXA 1\_16\_DD13 Altitude](/bulletins/11013199.md), 2025-01-29, Other: ENGINE. CX Advocate for DD13 Gen 5 engines operating at high altitude experience EGR slow response fault.
- [CXA 1\_16\_CARB Truck Chec](/bulletins/11013196.md), 2025-01-29, Other: ENGINE. CX Advocate for CARB tightening the Readiness Criteria applied to On\-Board Diagnostic \(OBD\) test submissions for the Clean Truck Check.
- [D24R2\-OWN LTR](/bulletins/11012368.md), 2025-01-06, Emissions: ENGINE. Emission Recall for DETROIT DD13 and DD16 ACM Software Reprogramming

JSON: [/v1/bulletins/10187834](/v1/bulletins/10187834)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%2020TS-08REV&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10187834&vehicle=Service%20bulletin%2020TS-08REV)