# Service bulletin TechTalk12241

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: 10188212
- Published by NHTSA: 2021\-03\-05
- Manufacturer's number: TechTalk12241
- Manufacturer's date: 2021\-02\-27
- NHTSA component: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM

## NHTSA's summary

Tech Talk discussion on Opti Idle P4 Cascadia Trouble\-shooting is in the New Cascadia manual.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10188212-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10188212-9999.pdf)

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

## Components

Electrical system, Engine, Equipment and accessories, Labels and manuals

## Vehicles listed

- 2022 FREIGHTLINER CASCADIA

## Recalls for the same vehicles and component

- [22V101000](/recalls/nhtsa/22V101000.md), 2022-02-22: SERVICE BRAKES; ELECTRICAL SYSTEM:SOFTWARE
- [21V715000](/recalls/nhtsa/21V715000.md), 2021-09-15: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
- [2021399](/recalls/tc/2021399.md), 2021-06-25: Electrical
- [21V481000](/recalls/nhtsa/21V481000.md), 2021-06-25: ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES
- [21V073000](/recalls/nhtsa/21V073000.md), 2021-02-12: ENGINE

## Other bulletins for the same vehicles and component

- [SS 3175\-FTL](/bulletins/11031986.md), 2026-05-02, Other: ELECTRICAL SYSTEM. Service Solution for Progressive Low Voltage Disconnect Parameter Update
- [CXA 03\_26\_Surge Tank](/bulletins/11030507.md), 2026-04-02, Other: ENGINE. CX Advocate for discolored coolant surge tanks \(24CSA\-20\)
- [FleetCom\_ECU Faults](/bulletins/11028287.md), 2026-02-05, Other: ELECTRICAL SYSTEM. Fleet Communications for Intermittent Connections and ECU Fault Codes
- [FleetCom\_Heater Core](/bulletins/11027493.md), 2026-01-08, Other: ENGINE. Fleet Communications for Heater Core Plugging
- [FleetCom\_ECU Faults](/bulletins/11027492.md), 2026-01-08, Other: ELECTRICAL SYSTEM. Fleet Communications for Corrosion Protecton/Glyptal Application
- [TSB54\-377\-FTL](/bulletins/11027199.md), 2026-01-07, Service bulletin: ENGINE. Technical Service Bulletin Low Coolant Sensor
- [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
- [FleetCom\_SS 3163\-FTL](/bulletins/11026453.md), 2025-12-06, Other: ENGINE. Fleet Communications for Power Steering Reservoir Fill Cap Venting
- [FleetCom\_Low Coolant](/bulletins/11026421.md), 2025-12-05, Other: ENGINE. Fleet Communications for Low Coolant Sensor

JSON: [/v1/bulletins/10188212](/v1/bulletins/10188212)

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