# Service bulletin TechTalk566771

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: 10194869
- Published by NHTSA: 2021\-06\-03
- Manufacturer's number: TechTalk566771
- Manufacturer's date: 2021\-05\-10
- NHTSA component: SERVICE BRAKES, AIR; ELECTRICAL SYSTEM; ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\)

## NHTSA's summary

Tech Talk Discussion P4 New Cascadia ABS Fault Code 520247/31 \- Failure Memory Bit \(ESC\) Condition Exists

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10194869-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10194869-9999.pdf)

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

## Components

Brakes, Driver assistance, Electrical system

## Vehicles listed

- 2020 FREIGHTLINER CASCADIA

## Recalls for the same vehicles and component

- [2026428](/recalls/tc/2026428.md), 2026-09-09: Brakes
- [26V583000](/recalls/nhtsa/26V583000.md), 2026-09-09: ELECTRONIC STABILITY CONTROL \(ESC\); SERVICE BRAKES, AIR:ANTILOCK
- [23V299000](/recalls/nhtsa/23V299000.md), 2023-04-26: ELECTRONIC STABILITY CONTROL \(ESC\)
- [2023051](/recalls/tc/2023051.md), 2023-02-10: Brakes
- [23V073000](/recalls/nhtsa/23V073000.md), 2023-02-10: ELECTRONIC STABILITY CONTROL \(ESC\); SERVICE BRAKES, AIR:ANTILOCK:MODULATOR
- [2022626](/recalls/tc/2022626.md), 2022-11-01: Brakes
- [22V817000](/recalls/nhtsa/22V817000.md), 2022-11-01: SERVICE BRAKES, AIR:ANTILOCK:MODULATOR; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
- [2021399](/recalls/tc/2021399.md), 2021-06-25: Electrical
- [21V481000](/recalls/nhtsa/21V481000.md), 2021-06-25: ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES
- [2020444](/recalls/tc/2020444.md), 2020-09-18: Brakes

## Other bulletins for the same vehicles and component

- [TEM\-11\-00001](/bulletins/11035536.md), 2026-08-03, Other: FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; FORWARD COLLISION AVOIDANCE: WARNINGS. Truck Equipment Manufacturer upfit guide for Detroit Assurance Forward Radar Relocation and Adjustment
- [CXA 04\_26\_Side Guard](/bulletins/11031981.md), 2026-05-02, Other: LANE DEPARTURE: BLIND SPOT DETECTION. CX Advocate for P4 Side Guard Assist On/Off Menus and Trailer Functionality \(TSB\-54\-381\-FTL\)
- [FleetCom\_SS 3174\-FTL](/bulletins/11026469.md), 2025-12-06, Other: ELECTRICAL SYSTEM. Fleet Communication for SS 3174\-FTL
- [FleetCom\_AMP Draw](/bulletins/11026454.md), 2025-12-06, Other: ELECTRICAL SYSTEM. Fleet Communications for Key off amp draw
- [CXA 10\_25\_Air Dryer Purge](/bulletins/11025094.md), 2025-11-06, Other: SERVICE BRAKES. CX Advocate for Experiencing Excessive Purging from Air Dryer
- [FAB344](/bulletins/11024978.md), 2025-11-05, Other: FORWARD COLLISION AVOIDANCE: WARNINGS; LANE DEPARTURE: ASSIST; LANE DEPARTURE: WARNING. Features and Benefits for SafetyDirect 5.1
- [MYCOM\_09122025\-1](/bulletins/11023665.md), 2025-10-03, Other: SERVICE BRAKES. My Communications for Parts Alert ABS Harness
- [CXA\_8\_25\_KY AEB](/bulletins/11022338.md), 2025-09-02, Other: FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING. CX Advocate for KY AEB Notice
- [KY AEB Notice](/bulletins/11022314.md), 2025-09-02, Other: FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING. Customer letter for Detroit Assurance Kentucky Interstate 71 Road Hazard
- [SS3176\-FTL](/bulletins/11017537.md), 2025-05-02, Other: ELECTRICAL SYSTEM. Service Solution for ICC5 Erroneous Electric Power Steering Warning Message

JSON: [/v1/bulletins/10194869](/v1/bulletins/10194869)

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