# Service bulletin TechTalk3253

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: 10180082
- Published by NHTSA: 2020\-09\-25
- Manufacturer's number: TechTalk3253
- Manufacturer's date: 2020\-09\-01
- NHTSA component: VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM

## NHTSA's summary

Tech Talk Discussion for a Western Star 5700 fault code 2049\-9 and 527\-9.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10180082-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10180082-9999.pdf)

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

## Components

Electrical system, Throttle and cruise control

## Vehicles listed

- 2015 to 2021 WESTERN STAR 5700

## Recalls for the same vehicles and component

- [2021697](/recalls/tc/2021697.md), 2021-11-12: Electrical
- [21V882000](/recalls/nhtsa/21V882000.md), 2021-11-12: ELECTRICAL SYSTEM:WIRING
- [2021172](/recalls/tc/2021172.md), 2021-03-24: Electrical
- [21V206000](/recalls/nhtsa/21V206000.md), 2021-03-24: ELECTRICAL SYSTEM:WIRING
- [2020217](/recalls/tc/2020217.md), 2020-05-18: Electrical
- [20V281000](/recalls/nhtsa/20V281000.md), 2020-05-18: ELECTRICAL SYSTEM:WIRING
- [18V191000](/recalls/nhtsa/18V191000.md), 2018-03-26: ELECTRICAL SYSTEM:WIRING

## Other bulletins for the same vehicles and component

- [CXA\_10\_25\_Tech Questions](/bulletins/11024966.md), 2025-11-05, Other: ELECTRICAL SYSTEM; POWER TRAIN. CX Advocate for technical questions/issues raised
- [SBW54\-080](/bulletins/10198595.md), 2021-06-29, Service bulletin: ELECTRICAL SYSTEM. Western Star Service Bulletin for Key Fob ID Retention. Key fobs for remote keyless entry on Western Star vehicles are delivered in packages that include a unique ID for the fob. The ID is required when pairing the key fob with a vehicle.
- [SS708\-WST2021](/bulletins/10198288.md), 2021-06-26, Service bulletin: ELECTRICAL SYSTEM. Western Star Service Solution for Low Voltage Disconnect \(LVD\) Troubleshooting: Western Star 5700 and New 4700.
- [TechTalk566681](/bulletins/10194820.md), 2021-06-02, Service bulletin: ELECTRICAL SYSTEM. Tech Talk Discussion No comms with CPC, MCM or ACM
- [SBW54\-057](/bulletins/10189332.md), 2021-03-25, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. Western Star Service Bulletin for Powernet Troubleshooting Guide \- Batteries, Path, Alternator, and Starter. When troubleshooting powernet issues, use the BCT\-460DTNA PowerNet Assessment Tool. As of May 29, 2018, the AutoMeter is the only Daimler\-approved tool for troubleshooting vehicle Powernet issues.
- [WP21\-007](/bulletins/10189319.md), 2021-03-24, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. Warranty Policy Letter for battery tags. DTNA determined that since adopting the AutoMeter BCT\-460DTNA Powernet Assessment Tool \(AutoMeter\) as the required powernet system tester, not all battery tags have to be retained support Warranty\-related claims.
- [0805\-17](/bulletins/10189092.md), 2021-03-15, Service bulletin: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:THERMAL MANAGEMENT:FLUID/COOLANT. 0805\-17 Contaminated Fluids
- [WI21\-006](/bulletins/10187444.md), 2021-02-26, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Warranty Information Letter for Detroit NOx Sensor Circuit Fault Codes \- Claim Guidelines.
- [TechTalk3253](/bulletins/10186664.md), 2021-02-04, Service bulletin: VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM. Tech Talk continuing discussion on Western Star 5700 Fault code 2049\-9 and 527\-9.
- [TechTalk7394](/bulletins/10186596.md), 2021-02-02, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT; LANE DEPARTURE. Tech Talk discussion on 2019 Western Start Door Speakers INOP. Also discusses Speaker interrupts for 2018 M2.

JSON: [/v1/bulletins/10180082](/v1/bulletins/10180082)

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