2021 Honda Accord technical service bulletins

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

• Oct 15, 2026 OtherOwner Notification Letter
• Oct 1, 2026 Service bulletinTech Line Summary Article
• Sep 25, 2026 Service bulletinUnder certain conditions, the cylinder head gasket effectiveness may be reduced which may
• Sep 16, 2026 OtherDealer Message
• Aug 31, 2026 OtherTech Line Summary
• Aug 26, 2026 Service bulletinUnder certain conditions, the cylinder head gasket effectiveness may be reduced which may
• Aug 26, 2026 OtherDealer Message
• Aug 21, 2026 OtherDealer Message
• Aug 21, 2026 Service bulletinOn certain 2018-2022 Accord and 2018-22 Accord Hybrid vehicles equipped with the Wireless CarPlay and...
• Apr 22, 2026 Service bulletinThere is a dull creaking, rubbing, popping, or clicking noise coming from the front of the vehicle while...
• Dec 19, 2025 OtherDealer Message
• Dec 19, 2025 Service bulletinTech Line Summary
• Jul 29, 2025 Service bulletinOil leak at timing chain tensioner inspection cover due to possible insufficient sealant adhesion on...
• Feb 28, 2025 Service bulletinThere is a dull creaking, rubbing, popping, or clicking noise coming from the front of the vehicle while...
• Dec 3, 2024 OtherDealer Message
• Nov 5, 2024 OtherDealer Message
• Aug 16, 2024 OtherDealer Message
• Jun 4, 2024 OtherDealer Message
• May 2, 2024 Service bulletinDuring engine start in cold conditions, a miscalculation in the PCM causes the air-fuel ratio to exceed...
• Feb 19, 2024 Service bulletinOwner Notification Letter
• Oct 18, 2023 Service bulletinDealer Message
• Sep 12, 2023 Service bulletinService News
• Apr 17, 2023 Service bulletinDealer Message
• Mar 31, 2023 Service bulletinDealer Message Request for Visit: 2018-2022 Accord & HR-V Front Damper Noise (ACTION REQUIRED)
• Mar 28, 2023 Service bulletinDealer Message
• Mar 14, 2023 Service bulletinUnder certain circumstances, the vehicle may experience driveability concerns
• Mar 10, 2023 Service bulletinDealer Message
• Feb 15, 2023 Service bulletinDealer Message
• Dec 13, 2022 Service bulletinService News Article
• Dec 13, 2022 Service bulletinDealer Message
• Dec 13, 2022 Service bulletinDealer Message
• Dec 8, 2022 Service bulletinDue to an improper heat treatment during the manufacturing process, the driven pulley in the CVT was not...
• Dec 2, 2022 Service bulletinDealer Message
• Nov 28, 2022 Service bulletinDealer Message
• Oct 6, 2022 Service bulletinDealer Message
• Sep 27, 2022 Service bulletinDealer Message
• Aug 26, 2022 Service bulletinDealer message
• Aug 23, 2022 Service bulletinDealer message
• Aug 22, 2022 Service bulletinDealer message
• Aug 16, 2022 Service bulletinDealer message
• Jul 5, 2022 Service bulletinDealer message
• May 6, 2022 Service bulletinDealer message
• May 1, 2022 Service bulletinThere is a rattling coming from the front of the vehicle
• Feb 28, 2022 Service bulletinDealer Message
• Feb 11, 2022 Service bulletinDealer Message
• Feb 8, 2022 Service bulletinDealer Message
• Jan 29, 2022 Service bulletinServiceNews Article
• Oct 27, 2021 Service bulletinDealer Message
• Oct 26, 2021 Service bulletinThe MIL comes on with DTC P061B (PCM Internal Malfunction) is stored.
• Oct 25, 2021 Service bulletinDealer Message
• Aug 9, 2021 Service bulletinDealer Message
• Aug 3, 2021 Service bulletinTech Line Summary Article
• Jul 29, 2021 Service bulletinThe MIL comes on with DTC U0155 (Lost Communication with Gauge Control Module).
• Jul 13, 2021 Service bulletinThe MIL is flashing with a loss of power.
• Jun 24, 2021 Service bulletinServiceNews Article
• Jun 3, 2021 Service bulletinThere is a rattling coming from the front of the vehicle.
• May 18, 2021 Service bulletinThe MIL comes on with DTC P0236 (Turbocharger Boost Sensor Circuit Range/Performance Problem) stored.
• May 10, 2021 Service bulletinDealer Message
• May 10, 2021 Service bulletinDealer Message
• Jan 19, 2021 Service bulletinServiceNews Article