# Service bulletin 8V491

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: 10236418
- Published by NHTSA: 2023\-05\-22
- Manufacturer's number: 8V491
- Manufacturer's date: 2019\-02\-01
- NHTSA component: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

## NHTSA's summary

ICUC Bulb check function.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10236418-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10236418-9999.pdf)

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

## Components

Electrical system, Instrument cluster

## Vehicles listed

- 2002 to 2024 FREIGHTLINER CASCADIA

## Recalls for the same vehicles and component

- [19V137000](/recalls/nhtsa/19V137000.md), 2019-02-27: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION \(PRNDL\)
- [18V491000](/recalls/nhtsa/18V491000.md), 2018-07-20: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

## Other bulletins for the same vehicles and component

- [54302](/bulletins/10236419.md), 2023-05-22, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. ABS Light illuminating in the ICU.
- [TechTalk7709](/bulletins/10180455.md), 2020-10-01, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ENGINE AND ENGINE COOLING. Tech talk discussion on inaccurate reading DEF gauge.
- [FL780](/bulletins/10158011.md), 2019-04-08, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Recall Bulletin\- Cascadia ICUC Bulb Check Function
- [sb54215](/bulletins/10142073.md), 2018-06-18, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. sb54215 ICU4M Missing VORAD Information or Reporting Fault SA 42 SPN FMI 07
- [sb5421](/bulletins/10141833.md), 2018-06-18, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE. sb54215 54\-215 \- ICU4M Missing VORAD Information or Reporting Fault SA 42 SPN 639 FMI 07
- [SB\-54\-215](/bulletins/10030463.md), 2009-10-07, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. FREIGHTLINER: ON SOME VEHICLES EQUIPPED WITH THE ICU4M INSTRUMENT PANEL AND THE EATON VORAD SYSTEM WITH AN INTEGRATED ICU DISPLAY, THE DRIVER MESSAGE CENTER MAY NOT DISPLAY AN VORAD INFORMATION, EVEN THOUGH VORAD IS FUNCTIONING. THIS IS BECAUSE THE ICU4M IS NOT RECOGNIZING THE VORAD SYSTEM, DUE TO EITHER SOFTWARE CODING SEQUENCES DURING PRODUCTION, OR AN AFTERMARKET INSTALLATION OF THE VORAD OPTION. NO MODEL YEARS LISTED. \*PE UPDATED 1/13/10. \*PE UPDATED 12/23/14. \*PE

JSON: [/v1/bulletins/10236418](/v1/bulletins/10236418)

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