# Service bulletin A21\-068

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: 10244663
- Published by NHTSA: 2023\-11\-01
- Manufacturer's number: A21\-068
- Manufacturer's date: 2023\-10\-25
- NHTSA component: VEHICLE SPEED CONTROL

## NHTSA's summary

Service Bulletin \- The ACC system error message comes on while driving when outside temperatures are low/near freezing due to snow and ice getting stuck to the front of the millimeter wave radar. This can cause DTC P2583\-76 \(Temporary stop of Integrated Driver Support System \[Misalignment Millimeter Wave Radar\]\) to be stored.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10244663-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10244663-9999.pdf)

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

## Components

Throttle and cruise control

## Trouble codes named

P2583

## Vehicles listed

- 2018 to 2020 HONDA ACCORD
- 2018 to 2020 HONDA ACCORD HYBRID
- 2017 to 2021 HONDA CIVIC
- 2017 to 2019 HONDA CR\-V
- 2019 to 2021 HONDA INSIGHT

## Other bulletins for the same vehicles and component

- [A21080A](/bulletins/10244299.md), 2023-10-25, Service bulletin: VEHICLE SPEED CONTROL; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL. Service News \- If an Adaptive Cruise Control System Problem comes back on when the vehicle is driven in freezing conditions, inform the customer it is likely due to snow or ice buildup on the radar. Advise the customer of the following procedure to clean the front grille where the radar is located.
- [ATI\&01032023902](/bulletins/10229680.md), 2023-01-11, Service bulletin: VEHICLE SPEED CONTROL:ACCELERATOR PEDAL; PARKING BRAKE; STEERING:STEERING CONTROL MODULE; SUSPENSION. Dealer Message \- American Honda Motor Co., Inc. \(AHM\) is searching for any \& all 2018\-2022 Accord Hybrids, 2020\-2022 CR\-V Hybrids \& 2019\-2022 Insights that match the criteria listed below.
- [ABOM04162020901](/bulletins/10174698.md), 2020-05-05, Service bulletin: FORWARD COLLISION AVOIDANCE; ELECTRICAL SYSTEM; VEHICLE SPEED CONTROL. Dealer message \- During production, the latest software version for the ACC/CMBS \(adaptive cruise control/collision mitigation braking system\), which is part of the VSA\-modulator control unit, was not installed in the vehicle. Vehicles without the latest software may be unable to maintain speed after setting the ACC.
- [A20\-032](/bulletins/10174697.md), 2020-05-05, Service bulletin: ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE; VEHICLE SPEED CONTROL. "Service bulletin \- During production, the latest software version for the ACC/CMBS \(adaptive cruise control/collision mitigation braking system\), which is part of the VSA\-modulator control unit, was not installed in the vehicle. Vehicles without the latest software may be unable to maintain speed after setting the ACC."
- [APaS04072020903](/bulletins/10173881.md), 2020-04-16, Service bulletin: VEHICLE SPEED CONTROL. Dealer Message \- American Honda Motor Co., Inc. \(AHM\) is investigating certain 2019\-2020 Civics with a customer complaint of the Adaptive Cruise Control \(ACC\) not working or a clicking noise when the brake pedal is depressed. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
- [APaS03192020903](/bulletins/10172917.md), 2020-03-30, Service bulletin: FORWARD COLLISION AVOIDANCE; SERVICE BRAKES, HYDRAULIC; VEHICLE SPEED CONTROL. Dealer Message \- American Honda Motor Co., Inc. \(AHM\) is investigating certain 2019\-2020 Civics with a customer complaint of the Adaptive Cruise Control \(ACC\) not working or a clicking noise when the brake pedal is depressed. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
- [APaS01312020901](/bulletins/10171036.md), 2020-02-05, Service bulletin: FORWARD COLLISION AVOIDANCE; VEHICLE SPEED CONTROL; SERVICE BRAKES, HYDRAULIC. Dealer Message \- American Honda Motor Co., Inc. \(AHM\) is investigating certain 2019\-2020 Civics with a customer complaint of the Adaptive Cruise Control \(ACC\) not working or a clicking noise when the brake pedal is depressed. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
- [APaS01162020901](/bulletins/10170612.md), 2020-01-23, Service bulletin: VEHICLE SPEED CONTROL; SERVICE BRAKES, HYDRAULIC; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL. Dealer Message \- American Honda Motor Co., Inc. \(AHM\) is investigating certain 2019\-2020 Civics with a customer complaint of the Adaptive Cruise Control \(ACC\) not working or a clicking noise when the brake pedal is depressed. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
- [A17\-064](/bulletins/10136438.md), 2018-05-14, Service bulletin: STEERING; VEHICLE SPEED CONTROL:CRUISE CONTROL; ELECTRICAL SYSTEM. Service bulletin \- There is an internal issue with the millimeter wave radar software, which may lead to one or more of the following symptoms: \- The millimeter wave radar is improperly calibrated, resulting in DTC P2583\-76 \(temporary stop of integrated driver support system \[misalignment millimeter wave radar\]\). \- Front radar blindness due to severe weather conditions \(rain, snow, fog, etc.\) may trigger a sporadic false Radar Obstructed message on the MID. \- The vehicle speed fluctuates at highway speeds when adaptive cruise control is set. \- DTC C0051\-54 \(steering angle neutral position learning incomplete\), U0416\-68 \(brake actuator malfunction\), and U0416\-92 \(temporary stop of integrated driver support system \[rejected control request by VSA system\]\) are set after the battery is replaced, disconnected, or jumped. \- During radar aiming, the Radar Obstructed message appears on the MID throughout the aiming procedure. \- During radar aiming, 4 and No Target are not displayed on the MID. \- DTC B2A60\-98 \(multipurpose camera unit temperature too high\) is set.
- [APaS02142018901](/bulletins/10129330.md), 2018-02-26, Service bulletin: VEHICLE SPEED CONTROL:ACCELERATOR PEDAL. Dealer message \- American Honda Motor Co., Inc. \(AHM\) is investigating certain 2018 Accord 2.0 Turbos with a customer complaint of delay in acceleration and MIL on. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

JSON: [/v1/bulletins/10244663](/v1/bulletins/10244663)

[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%20A21-068&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10244663&vehicle=Service%20bulletin%20A21-068)