Service bulletin A18-137

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	10154474
Published by NHTSA	2019-03-14
Manufacturer's number	A18-137
Manufacturer's date	2019-03-05
NHTSA component	EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM

NHTSA's summary

Service Bulletin - Under certain circumstances, the vehicle may experience driveability issues which may result in DTCs P0300 (random misfire detected), P0301 (No. 1 cylinder misfire detected), P0302 (No. 2 cylinder misfire detected), P0303 (No. 3 cylinder misfire detected), P0304 (No. 4 cylinder misfire detected), or P0172 (fuel system too rich).

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Equipment and accessories, Heating and air conditioning

Trouble codes named

P0172, P0300, P0301, P0302, P0303, P0304

Vehicles listed
HONDA CIVIC	2016, 2017, 2018

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
18V817000	2018-11-16. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
18V421000	2018-06-20. EQUIPMENT:OTHER:LABELS

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
A23-039	2024-02-03. Service bulletin. Service Bulletin - Due to a new North America regulation which introduces a new refrigerant and oil requirement, the compressor shaft seal may leak. American Honda is extending the warranty on the A/C compressor shaft seal from the original 3 years to 10 years from the original date of purchase, with no mileage limitation. The new refrigerant and oil may cause swelling of the compressor shaft seal. The swelling may lead to abnormal wearing of the seal which may increase seal gaps around the compressor shaft allowing refrigerant to leak out.
A23-039	2023-10-07. Service bulletin. Service Bulletin - Due to a new North America regulation which introduces a new refrigerant and oil requirement the compressor shaft seal may leak. American Honda is extending the warranty on the A/C compressor shaft seal from the original 3 years to 10 years from the original date of purchase, with no mileage limitation. The new refrigerant and oil may cause swelling of the compressor shaft seal. The swelling may lead to abnormal wearing of the seal which may increase seal gaps around the compressor shaft allowing refrigerant to leak out.
ONL6A506122023	2023-06-21. Service bulletin. Owner Notification Letter - Due to a new North America regulation that introduced a new refrigerant and oil requirement, the compressor shaft seal may leak. The new refrigerant and oil may cause swelling of the compressor shaft seal. The swelling may lead to abnormal wearing of the seal which may increase seal gaps around the compressor shaft allowing refrigerant to leak out.
A23-039	2023-06-21. Service bulletin. Service Bulletin - Due to a new North America regulation which introduces a new refrigerant and oil requirement the compressor shaft seal may leak. American Honda is extending the warranty on the A/C compressor shaft seal from the original 3 years to 10 years from the original date of purchase, with no mileage limitation. The new refrigerant and oil may cause swelling of the compressor shaft seal. The swelling may lead to abnormal wearing of the seal which may increase seal gaps around the compressor shaft allowing refrigerant to leak out.
A23-039	2023-05-31. Service bulletin. Service Bulletin - Due to a new North America regulation which introduces a new refrigerant and oil requirement the compressor shaft seal may leak. American Honda is extending the warranty on the A/C compressor shaft seal from the original 3 years to 10 years from the original date of purchase, with no mileage limitation. The new refrigerant and oil may cause swelling of the compressor shaft seal. The swelling may lead to abnormal wearing of the seal which may increase seal gaps around the compressor shaft allowing refrigerant to leak out.
ABOM05192023901	2023-05-31. Service bulletin. Dealer Message - Due to supplier process concerns, the A/C compressor may not have been manufactured to specifications. As a result, abnormal wearing of the rubber seal may occur causing gaps in the compressor shaft to develop allowing refrigerant to leak out.
A23-012	2023-04-20. Service bulletin. Service Bulletin - Customers have complained of the air conditioning system not blowing cold air due to the oil/refrigerant leak from the A/C compressor main shaft seal.
ATI&01032023901	2023-01-11. Service bulletin. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2017-2021 Civics & CR-Vs with a customer complaint of a inop, blank, or black meter display (gauge cluster) with no prior repairs made to the vehicle. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
ATI&12132022904	2022-12-21. Service bulletin. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2017-2021 Civics & CR-Vs with a customer complaint of an inop, blank, or black meter display (gauge cluster) with no prior repairs made to the vehicle. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
ATI&11282022901	2022-12-06. Service bulletin. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2017-2021 Civics & CR-Vs with a customer complaint of a inop, blank, or black meter display (gauge cluster) with no prior repairs made to the vehicle. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.