# Service bulletin ABOM07212023903

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: 10239702
- Published by NHTSA: 2023\-07\-27
- Manufacturer's number: ABOM07212023903
- Manufacturer's date: 2023\-07\-21
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

Dealer Message \- Affected vehicles may be equipped with an incorrectly machined engine block at the crankshaft position sensor \(CKP\) mounting location. Improper manufacturing of the engine block at this location may prevent accurate CKP measurements leading to misfire and potential catalyst deterioration. This condition may affect a vehicle’s compliance with California and Federal emissions standards and regulations.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10239702-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10239702-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2023 HONDA ACCORD HYBRID
- 2023 HONDA CR\-V HYBRID

## Other bulletins for the same vehicles and component

- [A26\-019](/bulletins/11037706.md), 2026-10-01, Service bulletin: ENGINE. Service Bulletin \- Under certain conditions, the cylinder head gasket effectiveness may be reduced which may cause vehicles to experience overheating, coolant loss, and/or misfire. In some cases, DTCs P0300 through P0304 may also be stored \(DTCs are not required for repair\).
- [A26\-017](/bulletins/11037704.md), 2026-10-01, Service bulletin: ENGINE. Service Bulletin \- Under certain conditions, the cylinder head gasket effectiveness may be reduced which may cause vehicles to experience overheating, coolant loss, and/or misfire. In some cases, DTCs P0300 through P0304 may also be stored \(DTCs are not required for repair\).
- [A26\-007](/bulletins/11037691.md), 2026-10-01, Service bulletin: ENGINE. Service Bulletin \- Under certain conditions, the cylinder head gasket effectiveness may be reduced which may cause vehicles to experience overheating, coolant loss, and/or misfire. In some cases, DTCs P0300 through P0304 may also be stored \(DTCs are not required for repair\).
- [A26\-005](/bulletins/11037689.md), 2026-10-01, Service bulletin: ENGINE. Service Bulletin \- Under certain conditions, the cylinder head gasket effectiveness may be reduced which may cause vehicles to experience overheating, coolant loss, and/or misfire. In some cases, DTCs P0300 through P0304 may also be stored \(DTCs are not required for repair\).
- [AEBM08262026901](/bulletins/11036424.md), 2026-08-27, Other: ENGINE. Dealer Message \- Under certain conditions, the cylinder head gasket effectiveness may be reduced which may cause vehicles to experience overheating, coolant loss, misfire, and/or DTCs P0300 through P0304 stored.
- [A26\-019](/bulletins/11036416.md), 2026-08-27, Service bulletin: ENGINE. Service Bulletin \- Under certain conditions, the cylinder head gasket effectiveness may be reduced which may cause vehicles to experience overheating, coolant loss, misfire and/or DTCs P0300 thru P0304 stored.
- [A26\-017](/bulletins/11036414.md), 2026-08-27, Service bulletin: ENGINE. Service Bulletin \- Under certain conditions, the cylinder head gasket effectiveness may be reduced which may cause vehicles to experience overheating, coolant loss, misfire and/or DTCs P0300 thru P0304 stored.
- [A26\-007](/bulletins/11036406.md), 2026-08-27, Service bulletin: ENGINE. Service Bulletin \- Under certain conditions, the cylinder head gasket effectiveness may be reduced which may cause vehicles to experience overheating, coolant loss, misfire and/or DTCs P0300 thru P0304 stored.
- [A26\-005](/bulletins/11036404.md), 2026-08-27, Service bulletin: ENGINE. Service Bulletin \- Under certain conditions, the cylinder head gasket effectiveness may be reduced which may cause vehicles to experience overheating, coolant loss, misfire and/or DTCs P0300 thru P0304 stored.
- [A26\-088](/bulletins/11035783.md), 2026-08-05, Service bulletin: ENGINE; FUEL/PROPULSION SYSTEM. Service Bulletin \- To better manage engine temperatures, a PGM\-FI update has been developed to optimize electric water pump operation.

JSON: [/v1/bulletins/10239702](/v1/bulletins/10239702)

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