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Service bulletins for the 2020 Honda Civic

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.

168 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
APaS101220202020-10-21. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Dealer Message - We have noticed an unprecedented parts demand and number of warranty claims for the 2016-2020 Civic A/C compressors. The overwhelming majority of the compressors returned and analyzed have been proven to be LEAK FREE. Some compressor designs will allow for some oil seepage and/or red dust in the compressor clutch/shaft area. This is NORMAL for this compressor design (see pictures HERE).
APaS093020202020-10-03. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Dealer Message - We have noticed an unprecedented parts demand and number of warranty claims for the 2016-2020 Civic A/C compressors. The overwhelming majority of the compressors returned and analyzed have been proven to be LEAK FREE. Some compressor designs will allow for some oil seepage and/or red dust in the compressor clutch/shaft area. This is NORMAL for this compressor design (see pictures HERE).
APaS092820209072020-10-03. Service bulletin. BACK OVER PREVENTION; EQUIPMENT. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2016-2020 Civics with a customer complaint of the rear view camera screen appearing blank, foggy or blurry. 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.
APaS091420202020-09-22. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:COMPRESSOR; EQUIPMENT. Dealer Message - We've noticed an unprecedented demand for A/C compressors which at times has created a backorder situation. The majority of the compressors returned were analyzed and proven leak free. As you are aware, there is Warranty Extension for Civic Condensers (Service Bulletin 19-091) for a leak problem. This bulletin provides detailed information on how to use the Bosch ROBLD020 Dual Mode Refrigerant Gas Leak Detector which should be used to confirm a leak at the compressor.
A20090C2020-09-22. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM:ADAS; SERVICE BRAKES, HYDRAULIC; FORWARD COLLISION AVOIDANCE. ServiceNews Article - Resting your foot on the brake pedal while driving can cause the ACC, Collision Mitigation Braking System, and Road Departure Mitigation indicators to come on. It also sets DTC C0041-14 (brake switch signal circuit error).
APaS091020209072020-09-16. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2016-2020 Civics with a customer complaint of the rear view camera screen appearing blank, foggy or blurry. 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.
APaS083120202020-09-04. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Dealer Message - We've noticed an unprecedented demand for A/C compressors which at times has created a backorder situation. The majority of the compressors returned were analyzed and proven leak free. As you are aware, there is Warranty Extension for Civic Condensers (Service Bulletin 19-091) for a leak problem. This bulletin provides detailed information on how to use the Bosch ROBLD020 Dual Mode Refrigerant Gas Leak Detector which should be used to confirm a leak at the compressor.
APaS082420209062020-09-04. Service bulletin. BACK OVER PREVENTION; EQUIPMENT. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2016-2020 Civics with a customer complaint of the rear view camera screen appearing blank, foggy or blurry. 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.
APaS080720209082020-08-14. Service bulletin. ELECTRICAL SYSTEM; BACK OVER PREVENTION. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2016-2020 Civics with a customer complaint of the rear view camera screen appearing blank, foggy or blurry. 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.
APaS080720209012020-08-14. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Dealer Message - We've noticed an unprecedented demand for A/C compressors which at times has created a backorder situation. The majority of the compressors returned were analyzed and proven leak free. As you are aware, there is Warranty Extension for Civic Condensers (Service Bulletin 19-091) for a leak problem. This bulletin provides detailed information on how to use the Bosch ROBLD020 Dual Mode Refrigerant Gas Leak Detector which should be used to confirm a leak at the compressor.
APaS061220202020-06-18. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Dealer Message - We've noticed an unprecedented demand for A/C compressors which at times has created a backorder situation. The majority of the compressors returned were analyzed and proven leak free. As you are aware, there is Warranty Extension for Civic Condensers (Service Bulletin 19-091) for a leak problem. This bulletin provides detailed information on how to use the Bosch ROBLD020 Dual Mode Refrigerant Gas Leak Detector which should be used to confirm a leak at the compressor.
APaS052820202020-06-04. Service bulletin. VISIBILITY; ENGINE AND ENGINE COOLING; ENGINE. Dealer Message - We've noticed an unprecedented demand for A/C compressors which at times has created a backorder situation. The majority of the compressors returned were analyzed and proven leak free. As you are aware, there is Warranty Extension for Civic Condensers (Service Bulletin 19-091) for a leak problem. This bulletin provides detailed information on how to use the Bosch ROBLD020 Dual Mode Refrigerant Gas Leak Detector which should be used to confirm a leak at the compressor.
APaS051220202020-05-19. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Dealer Message - We've noticed an unprecedented demand for A/C compressors which at times has created a backorder situation. The majority of the compressors returned were analyzed and proven leak free. As you are aware, there is Warranty Extension for Civic Condensers (Service Bulletin 19-091) for a leak problem. This bulletin provides detailed information on how to use the Bosch ROBLD020 Dual Mode Refrigerant Gas Leak Detector which should be used to confirm a leak at the compressor.
AMV2005022020-05-19. Service bulletin. EQUIPMENT. Video Message - It concerns how to replace a leaky front rocker arm oil control valve. Due to a deteriorated lower gasket or an out-of-spec gasket groove, the front rocker arm oil control valve can leak in certain V6 models with variable cylinder management. To fix this issue service bulletin A20-023 was posted. Please let us know if you would like a copy of the video sent to you on a DVD or thumb drive.
AMV2005012020-05-19. Service bulletin. EQUIPMENT. Video Message - It concerns how to replace a leaky front rocker arm oil control valve. Due to a deteriorated lower gasket or an out-of-spec gasket groove, the front rocker arm oil control valve can leak in certain V6 models with variable cylinder management. To fix this issue service bulletin A20-023 was posted. Please let us know if you would like a copy of the video sent to you on a DVD or thumb drive.
APaS041620209072020-05-05. Service bulletin. VISIBILITY. Dealer message - We’ve noticed an unprecedented demand for A/C compressors which at times has created a backorder situation. The majority of the compressors returned were analyzed and proven leak free. As you are aware, there is Warranty Extension for Civic Condensers (Service Bulletin 19-091) for a leak problem. This bulletin provides detailed information on how to use the Bosch ROBLD020 Dual Mode Refrigerant Gas Leak Detector which should be used to confirm a leak at the compressor.
ABOM041620209012020-05-05. 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.
A20-0322020-05-05. 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."
APaS040720209082020-04-16. Service bulletin. WHEELS. Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2019-2020 Civic Si's & Sports with a customer complaint of a slow air leak in the tires. To better 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.
APaS040720209032020-04-16. 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.
APaS040320202020-04-10. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING; VISIBILITY. Dealer Message - We've noticed an unprecedented demand for A/C compressors which at times has created a backorder situation. The majority of the compressors returned were analyzed and proven leak free. As you are aware, there is Warranty Extension for Civic Condensers (Service Bulletin 19-091) for a leak problem. This bulletin provides detailed information on how to use the Bosch ROBLD020 Dual Mode Refrigerant Gas Leak Detector which should be used to confirm a leak at the compressor.
APaS031920209092020-03-31. Service bulletin. VISIBILITY. Dealer Message - We've noticed an unprecedented demand for A/C compressors which at times has created a backorder situation. The majority of the compressors returned were analyzed and proven leak free. As you are aware, there is Warranty Extension for Civic Condensers (Service Bulletin 19-091) for a leak problem. This bulletin provides detailed information on how to use the Bosch ROBLD020 Dual Mode Refrigerant Gas Leak Detector which should be used to confirm a leak at the compressor.
APaS031920209082020-03-31. Service bulletin. WHEELS. Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2019-2020 Civic Si's & Sports with a customer complaint of a slow air leak in the tires. To better 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.
APaS031920209032020-03-30. 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.
APaS030520202020-03-11. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:APPLIANCE:AIR CONDITIONER. Dealer Message - We've noticed an unprecedented demand for A/C compressors which at times has created a backorder situation. The majority of the compressors returned were analyzed and proven leak free. As you are aware, there is Warranty Extension for Civic Condensers (Service Bulletin 19-091) for a leak problem. This bulletin provides detailed information on how to use the Bosch ROBLD020 Dual Mode Refrigerant Gas Leak Detector which should be used to confirm a leak at the compressor.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.