# Service bulletin TechTalk3285

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: 10186544
- Published by NHTSA: 2021\-02\-02
- Manufacturer's number: TechTalk3285
- Manufacturer's date: 2021\-01\-29
- NHTSA component: LANE DEPARTURE; FORWARD COLLISION AVOIDANCE

## NHTSA's summary

Tech Talk discussion on Detroit Assurance Radar Picking Up Overhead Signs.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10186544-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10186544-9999.pdf)

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

## Components

Driver assistance

## Vehicles listed

- 2018 FREIGHTLINER CASCADIA

## Recalls for the same vehicles and component

- [23V073000](/recalls/nhtsa/23V073000.md), 2023-02-10: ELECTRONIC STABILITY CONTROL \(ESC\); SERVICE BRAKES, AIR:ANTILOCK:MODULATOR
- [22V817000](/recalls/nhtsa/22V817000.md), 2022-11-01: SERVICE BRAKES, AIR:ANTILOCK:MODULATOR; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

## Other bulletins for the same vehicles and component

- [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
- [SS1034428\-FTL22](/bulletins/10210557.md), 2022-05-03, Service bulletin: FORWARD COLLISION AVOIDANCE. Service Solution for Cummins Engine andWABCO OnGuard \(Obtaining Cruise When AdaptiveCruise Is Interrupted\). Interruption of the forward radar system results in loss of both standard and adaptive cruise functions. The OnGuard system will recover \(self\-heal\), once the issue goes away, but the drivercannot get Adaptive Cruise Control functional until the ignition switch is cycled. Applies to all New Cascadia vehicles built with Cummins engines and WABCO OnGuard.
- [SS3091\-FTL 2021](/bulletins/10201684.md), 2021-09-29, Service bulletin: LANE DEPARTURE. Service Solution for Damaged SGA Wires at GrabHandle Located on Right A Pillar. The field had reported failed VRDU modules related to wires damage for the SGA.
- [SS1034216](/bulletins/10200709.md), 2021-08-31, Service bulletin: FORWARD COLLISION AVOIDANCE. Service Solution for Detroit Assurance Radar Front End Shipping Label. It has been reported that in some cases shipping labels may have been affixed to the inside center of the front cover on aftermarket parts. The shipping label has since been moved to the outer edge of the front cover, which should not affect the RDF's ability to properly sense obstacles located in front of the vehicle.
- [SB54\-344](/bulletins/10200620.md), 2021-08-28, Service bulletin: FORWARD COLLISION AVOIDANCE. Freightliner Service Bulletin for Detroit Assurance 4.0 Software v20.05. Cascadia trucks built from January 1, 2017 through September 9, 2019 and equipped with Detroit Assurance correctly initiate an active brake assist \(ABA\) event when a vehicle or obstacle is detected in front of the truck. Some of those trucks may continue decelerating to a complete stop, even after the vehicle or obstacle detected in front of the Detroit Assurance\-equipped truck has moved away.
- [SS3081FTL2021](/bulletins/10199371.md), 2021-07-22, Service bulletin: LANE DEPARTURE; FORWARD COLLISION AVOIDANCE. Service Solution for VRDU Fault Code 232/524000/19and 232/524049/19 – ECU CPC Data Error. This VRDU code typically sets after the VRDU gets reprogrammed and parameters to clear out. To prevent this from happening in the future, follow the programming guide laid out in SB 54\-308.Parameter changes during flashing can occur if the programming steps are not followed.
- [SB54\-334](/bulletins/10198593.md), 2021-06-29, Service bulletin: FORWARD COLLISION AVOIDANCE; ENGINE AND ENGINE COOLING. Freightliner Service Bulletin for Detroit Assurance 4.0 Software v20.05. New Cascadia trucks built from January 1, 2017 through September 9, 2019 and equipped with Detroit Assurance correctly initiate an active brake assist \(ABA\) event when a vehicle or obstacle is detected in front of the truck. Some of those trucks may continue decelerating to a complete stop, even after the vehicle or obstacle detected in front of the Detroit Assurance\-equipped truck has moved away.
- [SS3070FTL2021](/bulletins/10189337.md), 2021-03-25, Service bulletin: ELECTRICAL SYSTEM; LANE DEPARTURE. Service Solution for P4 New Cascadia Side Guard Radar Harness Moisture Intrusion. The 6\-pin connector located at the side radar can show signs of water intrusion if wires are strained at the connector. Wires without strain relief can allow water to intrude past the seals, resulting in corrosion on the terminals and pins within the connector. Active fault codes for lost communication with RDU and SRRM, plus other codes for CPC, CGW and ABS.
- [TechTalk3285](/bulletins/10187926.md), 2021-03-02, Service bulletin: FORWARD COLLISION AVOIDANCE; LANE DEPARTURE. Tech Talk continued discussion on Detroit Assurance Radar Picking Up Overhead Signs.

JSON: [/v1/bulletins/10186544](/v1/bulletins/10186544)

[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%20TechTalk3285&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10186544&vehicle=Service%20bulletin%20TechTalk3285)