# Service bulletin 2060596/1

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: 10180952
- Published by NHTSA: 2020\-10\-08
- Manufacturer's number: 2060596/1
- Manufacturer's date: 2020\-09\-08
- NHTSA component: ELECTRICAL SYSTEM; POWER TRAIN; EQUIPMENT; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

## NHTSA's summary

Transmission DTC \- U040100 50273/C461 Invalid Data Received From ECM/PCM 'A'. Customer statement / workshop findings: Diagnostic Trouble Code \(DTC\) U040100 50273/C461 Invalid Data Received From ECM/PCM "A" stored within the Transmission Control Unit. Technical background: During Adaptive Cruise Control \(ACC\) brake to stop events, it is possible for the brake pressure to decay at a rate outside of specified parameters, DTC \- U040100 50273/C461 Invalid Data Received From ECM/PCM "A" will therefore be stored within the Transmission Control Unit. When the DTC is stored the Customer will not be aware, there will be no warning from the Driver Instrument Panel \(DIP\) and no effect on performance of the vehicle. Measure: If the DTC is found to be stored within the Transmission Control Unit check the status, if it is Passive / Inactive, the DTC should be ignored and no further action taken. If the DTC is Static / Active, then this should be treated as a genuine vehicle fault, analysis and repair of the fault should therefore be carried out.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10180952-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10180952-9999.pdf)

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

## Components

Driver assistance, Electrical system, Equipment and accessories, Transmission and driveline, Adaptive cruise control

## Trouble codes named

U0401

## Vehicles listed

- 2018 to 2021 BENTLEY CONTINENTAL GT
- 2018 to 2021 BENTLEY CONTINENTAL GT CABRIO

## Other bulletins for the same vehicles and component

- [2063855/13](/bulletins/11035302.md), 2026-07-29, Service bulletin: LANE DEPARTURE: ASSIST; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; ELECTRICAL SYSTEM; STEERING; LANE DEPARTURE: WARNING. DTC B17B801 and/or B17B804 \- evident within address 0019 and/or DTC U112300 evident in 00A5. Customer statement / workshop findings: • Lane Assist and / or Traffic Assist are not functional • DTC \- B17B801 \- Steering Wheel Touch Recognition Control Module evident within address 0019 And/or • DTC B17B804 \- Steering Wheel Touch Recognition Control Module electrical error \- evident within address 0019 And/or • DTC U112300 with symptom Code 1123220 within address 00A5
- [2064648/7](/bulletins/11035247.md), 2026-07-28, Service bulletin: FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING; FORWARD COLLISION AVOIDANCE: WARNINGS. ACC Unavailable\-Traffic Assist Failure\-Safeguard Failure\-Radar Malfunction Warning DIP \- Numerous DTC's within 0013. Customer statement: One or numerous of the following issues are evident: • ACC Failure • Traffic Assist Failure • Safeguard Failure • Radar Malfunction
- [2064648/6](/bulletins/11024385.md), 2025-10-21, Service bulletin: ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING; FORWARD COLLISION AVOIDANCE: WARNINGS; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING. ACC Unavailable\-Traffic Assist Failure\-Safeguard Failure\-Radar Malfunction Warning DIP \- Numerous DTC's within 0013. Customer statement: One or numerous of the following issues are evident: • ACC Failure • Traffic Assist Failure • Safeguard Failure • Radar Malfunction
- [2064648/5](/bulletins/11015373.md), 2025-03-08, Service bulletin: BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING; FORWARD COLLISION AVOIDANCE: WARNINGS. ACC Unavailable\-Traffic Assist Failure\-Safeguard Failure\-Radar Malfunction Warning DIP \- Numerous DTC's within 0013. Customer statement: One or numerous of the following issues are evident: • ACC Failure • Traffic Assist Failure • Safeguard Failure • Radar Malfunction
- [2060596.4](/bulletins/10226964.md), 2022-12-07, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; SERVICE BRAKES, HYDRAULIC. Transmission DTC \- U040100 50273/C461 \(Invalid Data Received From ECM/PCM A\) Technical Background: \-During Adaptive Cruise Control \(ACC\) brake to stop events, it is possible for the brake pressure to decay at a rate outside of specified parameters, DTC U040100 50273/C461 \(Invalid Data Received From ECM/PCM A\) will therefor be stored within the transmission control unit

JSON: [/v1/bulletins/10180952](/v1/bulletins/10180952)

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