2021 Honda Accord Hybrid Technical Service Bulletins

44 technical service bulletins (TSBs) are on record for the 2021 Honda Accord Hybrid. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 11038789Oct 15, 2026Electrical system. Owner Notification Letter - a programming issue within the Wireless CarPlay and Android Auto software may cause an invalid "License Authentication Error" message to appear on the display audio screen after approximately 1,500 ignition ON/OFF cycles.
• 11038473Oct 1, 2026Electrical system. Tech Line Summary Article - Customers may report that the center display unit changes screens on its own, registers unintended inputs, or operates erratically without user interaction. The condition may be more noticeable when vehicle interior temperatures are elevated.
• 11037690Sep 25, 2026Engine. 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).
• 11037426Sep 16, 2026Electrical system. Dealer Message - On August 21st, 2026, American Honda issued a Product Update for certain 2018-2022 Accord and Accord Hybrid models that received the accessory Wireless CarPlay and Android Auto upgrade. Refer to Service Bulletin 26-068 for additional information regarding the Product Update.
• 11036424Aug 26, 2026Engine. 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.
• 11036405Aug 26, 2026Engine. 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.
• 11036326Aug 21, 2026Electrical system. Service Bulletin - On certain 2018-2022 Accord and 2018-22 Accord Hybrid vehicles equipped with the Wireless CarPlay and Android Auto software upgrade, a programming issue within the Wireless CarPlay and Android Auto software may cause an invalid "License Authentication Error" message to appear on the display audio screen after approximately 1,500 ignition ON/OFF cycles.
• 11031760Apr 22, 2026Body and structure. Service Bulletin - There is a dull creaking, rubbing, popping, or clicking noise coming from the front of the vehicle while turning at low speeds potentially due to the bump stop contacting the top of the front damper body.
• 11011786Dec 6, 2024Engine. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2022 Accord FHEVs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) stored. Customer may also experience engine running rough condition. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you…
• 11010678Nov 13, 2024Engine. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2022 Accord FHEVs & 2020-2022 CR-V FHEVs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) stored. Customer may also experience engine running rough condition. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle…
• 11009200Oct 17, 2024Engine. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2022 Accord FHEVs & 2020-2022 CR-V FHEVs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) stored. Customer may also experience engine running rough condition. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle…
• 11009168Oct 11, 2024Engine. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2022 Accord FHEVs, as well as 2017-2022 CR-V 1.5Ls (no 2.4L), & 2020-2022 CR-V FHEVs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) stored. Customer may also experience engine running rough condition.
• 11008039Sep 21, 2024Engine. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2022 Accord FHEVs, as well as 2017-2022 CR-V 1.5Ls (no 2.4L), & 2020-2022 CR-V FHEVs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) stored. Customer may also experience engine running rough condition.
• 11007891Sep 11, 2024Engine. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2022 Accord FHEVs, as well as 2017-2022 CR-V 1.5Ls (no 2.4L), & 2020-2022 CR-V FHEVs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) stored. Customer may also experience engine running rough condition.
• 11006807Aug 26, 2024Engine. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2022 Accord FHEVs, as well as 2017-2022 CR-V 1.5Ls (no 2.4L), & 2020-2022 CR-V FHEVs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) stored. Customer may also experience engine running rough condition.
• 11006815Aug 23, 2024Engine. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2022 Accord FHEVs, as well as 2017-2022 CR-V 1.5Ls (no 2.4L), & 2020-2022 CR-V FHEVs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) stored. Customer may also experience engine running rough condition.
• 11005519Jul 26, 2024Engine. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2022 Accord 1.5Ls (no 2.0L) & FHEVs, as well as 2017-2022 CR-V 1.5Ls (no 2.4L), & 2020-2022 CR-V FHEVs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) stored. Customer may also experience engine running rough condition.
• 11000131May 3, 2024Engine. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2022 Accord FHEVs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) stored. Customer may also experience engine running rough condition. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you…
• 10253305Apr 12, 2024Engine cooling. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2022 Accord FHEVs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) stored. Customer may also experience engine running rough condition. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you…
• 10252472Mar 26, 2024Electrical system, Engine cooling. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2022 Accord FHEVs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) stored. Customer may also experience engine running rough condition. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you…
• 10251899Mar 10, 2024Electrical system, Engine cooling. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2022 Accord FHEVs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) stored. Customer may also experience engine running rough condition. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you…
• 10250726Feb 15, 2024Engine cooling. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2022 Accord FHEVs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) stored. Customer may also experience engine running rough condition. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you…
• 10233670Mar 27, 2023Brakes. 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. Qualifiers AHM is interested ONLY if the vehicle meets the following requirements: 1. Manufactured date on the Driver’s door jamb must be between 1/2019 & 9/2021. 2. No DTC stored. 3. Electric Servo Brake (ESB) system has not…
• 10232967Mar 10, 2023Brakes. 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. Qualifiers AHM is interested ONLY if the vehicle meets the following requirements: 1. Manufactured date on the Driver’s door jamb must be between 1/2019 & 9/2021. 2. No DTC stored. 3. Electric Servo Brake (ESB) system has not…
• 10232246Feb 23, 2023Brakes. 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. Qualifiers AHM is interested ONLY if the vehicle meets the following requirements: 1. Manufactured date on the Driver’s door jamb must be between 1/2019 & 9/2021. 2. No DTC stored. 3. Electric Servo Brake (ESB) system has not…
• 10231829Feb 7, 2023Brakes. 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. AHM is interested ONLY if the vehicle meets the following requirements: 1. Manufactured date on the Driver’s door jamb must be between 1/2019 & 9/2021. 2. No DTC stored. 3. Electric Servo Brake (ESB) system has not been…
• 10230593Jan 18, 2023Brakes. 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.
• 10229680Jan 3, 2023Vehicle speed control, Steering, Suspension, Brakes. 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.
• 10228194Dec 13, 2022Brakes. 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. Qualifiers AHM is interested ONLY if the vehicle meets the following requirements: 1. Manufactured date on the Driver’s door jamb must be between 1/2019 & 9/2021. 2. No DTC stored. 3. Electric Servo Brake (ESB) system has not…
• 10227233Nov 28, 2022Brakes, Equipment. 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. Qualifiers AHM is interested ONLY if the vehicle meets the following requirements: 1. Manufactured date on the Driver’s door jamb must be between 1/2019 & 9/2021. 2. No DTC stored. 3. Electric Servo Brake (ESB) system has not…
• 10226207Nov 12, 2022Brakes. 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. Qualifiers AHM is interested ONLY if the vehicle meets the following requirements: 1. Manufactured date on the Driver’s door jamb must be between 1/2019 & 9/2021. 2. No DTC stored. 3. Electric Servo Brake (ESB) system has not…
• 10226215Nov 8, 2022Brakes. Owner Notification Letter - Warranty Booklet – Emission Warranty Parts List Missing Parts Label Our records indicate that a Safety Recall has not been completed on this vehicle (Vehicle Identification Number XXXXXXXXXXXXXXXXX). On some 2021 Accord Hybrids and 2021 CR-V Hybrids, the Parking Pawl Control Module and Parking Pawl Actuator warranty terms information is missing from the Federal and California Emission…
• 10225474Oct 25, 2022Brakes. "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. Qualifiers AHM is interested ONLY if the vehicle meets the following requirements: 1. Manufactured date on the Driver’s door jamb must be between 1/2019 & 9/2021. 2. No DTC stored. 3. Electric Servo Brake (ESB) system has not…
• 10222812Oct 6, 2022Equipment. 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. AHM is interested ONLY if the vehicle meets the following requirements: 1. Manufactured date on the Driver’s door jamb must be between 1/2019 & 9/2021. 2. No DTC stored. 3. Electric Servo Brake (ESB) system has not been…
• 10215484Jun 7, 2022Fuel system, Engine cooling, Electrical system. "Service bulletin - The MIL comes on with DTC P2DE1 (Cold Start Air Fuel Ratio Control System Rich). A new cold start emission reduction strategy was applied to detect air fuel ratio abnormalities. When certain fuel and vehicle shutoff conditions are present, the LAF sensor may incorrectly judge the air fuel ratio to be rich."
• 10211075May 1, 2022Suspension. Service bulletin - There is a rattling coming from the front of the vehicle. The rubber damper cap(s) are faulty.
• 10211112Apr 29, 2022Fuel system, Electronic stability control. Dealer message - A new cold start emission reduction strategy was applied to detect air fuel ratio abnormalities. When certain fuel and vehicle shutoff conditions are present, the LAF sensor may incorrectly judge the air fuel ratio to be rich.
• 10203827Nov 22, 2021Equipment, Transmission and drivetrain, Brakes. Owner Notification Letter - On some 2021 Accord Hybrids and 2021 CR-V Hybrids, the Parking Pawl Control Module and Parking Pawl Actuator warranty terms information is missing from the Federal and California Emission Warranties Parts List page within the Warranty Information Booklet.
• 10202317Oct 16, 2021Transmission and drivetrain. Service Bulletin - The Parking Pawl Control Module and Parking Pawl Actuator warranty terms label needs to be applied to the Federal and California Emission Warranties Parts List page within the Warranty Information Booklet.
• 10202260Oct 8, 2021Electrical system, Transmission and drivetrain. Dealer Message - The Parking Pawl system is programmed to illuminate the MIL upon failure. The parts are required to be covered by the emission warranty. The related parts were not listed in the Warranty Booklet.
• 10202257Oct 8, 2021Equipment. Service Bulletin - The Parking Pawl Control Module and Parking Pawl Actuator warranty terms label needs to be applied to the Federal and California Emission Warranties Parts List page within the Warranty Information Booklet.
• 10201454Sep 10, 2021Fuel system. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2021 Accord 1.5Ts & CR-Vs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) or P0172 (Fuel System Too Rich) stored. 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.
• 10201448Sep 10, 2021Suspension. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021 Accords & CR-V with a customer complaint of a clunk or rattle noise coming from the front suspension. 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.
• 10199748Jul 29, 2021Electrical system. Service Bulletin - The MIL comes on with DTC U0155 (Lost Communication with Gauge Control Module).

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