WenmarOpen by Wenmar Pro

Service bulletins for the 2021 Honda Ridgeline

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.

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

By type

By component

By trouble code

Bulletins, newest first
A23-0092023-01-11. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR; ELECTRICAL SYSTEM:SOFTWARE. Service Bulletin - Under certain circumstances, after coming to a stop and engaging idle stop, the vehicle may not restart automatically due to excessive cylinder pressure and/or low cranking torque. Typically, the customer can immediately restart the vehicle by selecting Park and pressing the ENGINE START/STOP button. NOTE: If 23-008 Product Update: PGM-FI Idle Stop Software Update is applicable to the VIN, the PGM-FI software must be updated first before the warranty extension applies. Honda is extending the warranty coverage for valve adjustment and starter replacement related to this condition to 10 years from the original date of purchase with no mileage limitation.
A23-0082023-01-11. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. Service Bulletin - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart. Typically, the customer can immediately restart the vehicle by selecting Park and pushing the ENGINE START/STOP button.
ATI&120920222022-12-14. Service bulletin. ELECTRICAL SYSTEM; BACK OVER PREVENTION. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2023 Ridgelines with a customer complaint of the rearview camera inop. Customer may also complain of the tailgate lock inop, alarm activating on its own, or cargo light inop. 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.
ATI&111220229042022-11-15. Service bulletin. EXTERIOR LIGHTING. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021 Ridgelines with a customer complaint of moisture in headlight. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind.
A20-0022022-09-09. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. Service bulletin - The MIL is on with DTC P2422 (EVAP canister vent shut valve stuck closed malfunction). Dirt may be clogging the EVAP canister vent tube.
A20-0022022-08-02. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. Service bulletin - The MIL is on with DTC P2422 (EVAP canister vent shut valve stuck closed malfunction). Dirt may be clogging the EVAP canister vent tube.
A20-0222022-07-07. Service bulletin. EQUIPMENT; EXTERIOR LIGHTING. Service bulletin - One or more accessory running board lights are flickering or not working. The running board light assembly is faulty. * Denotes Required Fields TSB ID : TSB Date : Calendar for date entry assistance Source : All Manual EMAIL MCA Portal
ATI&060720229012022-07-07. Service bulletin. EXTERIOR LIGHTING; VISIBILITY. Dealer message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2020 Passports, Pilots & 2021 Ridgelines with a customer complaint of moisture in the headlight. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind.
ATI&050620229022022-06-06. Service bulletin. VISIBILITY. Dealer message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021 Ridgelines with a customer complaint of moisture in the headlight. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind.
ATI&041220229032022-05-06. Service bulletin. EXTERIOR LIGHTING. Dealer message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021 Ridgelines with a customer complaint of moisture in the headlight. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind.
ATI&032920229022022-04-07. Service bulletin. EXTERIOR LIGHTING. Dealer message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021 Ridgelines with a customer complaint of moisture in the headlight. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind.
ATI&030920222022-03-15. Service bulletin. EXTERIOR LIGHTING. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021 Ridgelines with a customer complaint of moisture in the headlight. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind.
ATI&022220229032022-03-02. Service bulletin. TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS; WHEELS; TIRES. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021-2022 Odysseys & Ridgelines with a customer complaint of Tire Pressure Monitoring System (TPMS) light on due to a faulty sensor. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle before attempting a repair of any kind.
ATI&022220229012022-03-02. Service bulletin. EXTERIOR LIGHTING. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021 Ridgelines with a customer complaint of moisture in the headlight. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind.
ATI&021720222022-02-23. Service bulletin. TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021-2022 Odysseys & Ridgelines with a customer complaint of Tire Pressure Monitoring System (TPMS) light on due to a faulty sensor. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle before attempting a repair of any kind.
ATI&020720229012022-02-15. Service bulletin. EXTERIOR LIGHTING. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021 Ridgelines with a customer complaint of moisture in the headlight. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind.
ATI&020320222022-02-08. Service bulletin. ELECTRICAL SYSTEM; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS; WHEELS. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021-2022 Odysseys & Ridgelines with a customer complaint of Tire Pressure Monitoring System (TPMS) light on due to a faulty sensor. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle before attempting a repair of any kind.
A21100B2022-02-04. Service bulletin. AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT. ServiceNews Article - There are several possible causes for the SRS DTC U3000-49 (Internal Failure of the SRS Unit) to be stored. If you can duplicate the DTC, the troubleshooting will take you through the step-by-step process in isolating the faulty component. In most situations, the SRS Unit should be last on the list of components to replace. Here is a quick tip for troubleshooting a faulty seat weight sensor.
ATI&012120229022022-01-25. Service bulletin. EXTERIOR LIGHTING; EQUIPMENT. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021 Ridgelines with a customer complaint of moisture in the headlight. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind.
ATI&011920229022022-01-25. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021-2022 Odysseys & Ridgelines with a customer complaint of Tire Pressure Monitoring System (TPMS) light on due to a faulty sensor. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle before attempting a repair of any kind.
ATI&011120222022-01-19. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS; EQUIPMENT. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021 Ridgelines with a customer complaint of moisture in the headlight. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind.
ATI&010320229022022-01-11. Service bulletin. WHEELS. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021-2022 Odysseys & Ridgelines with a customer complaint of Tire Pressure Monitoring System (TPMS) light on due to a faulty sensor. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle before attempting a repair of any kind.
A21100B2022-01-11. Service bulletin. AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT; SEATS. ServiceNews Article - There are several possible causes for the SRS DTC U3000-49 (Internal Failure of the SRS Unit) to be stored. If you can duplicate the DTC, the troubleshooting will take you through the step-by-step process in isolating the faulty component. In most situations, the SRS Unit should be last on the list of components to replace. Here is a quick tip for troubleshooting a faulty seat weight sensor.
ATI&121520219022021-12-22. Service bulletin. TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021-2022 Odysseys & Ridgelines with a customer complaint of Tire Pressure Monitoring System (TPMS) light on due to a faulty sensor. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle before attempting a repair of any kind.
ATI&112920219072021-12-03. Service bulletin. WHEELS; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021-2022 Odysseys & Ridgelines with a customer complaint of Tire Pressure Monitoring System (TPMS) light on due to a faulty sensor. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle before attempting a repair of any kind.

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