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Service bulletins for the 2014 Acura RLX

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.

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

About P0154 on the 2014 Acura RLX: what the code means, and the bulletins and recalls about the same components.

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By trouble code

Only bulletins with trouble code: P0154 are shown. Show all

Bulletins, newest first
DLR MSG - RFP -2018-02-05. Service bulletin. ENGINE AND ENGINE COOLING. Dealer message - American Honda (AHM) is investigating certain 2014 MDXs & RLXs with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1]Heater System Malfunction) or P0134 (Rear Air Fuel Ratio Sensor [Bank 1, Sensor 1]Heater System Malfunction) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting any further repair of any kind.
DLR MSG - RFP -2018-02-05. Service bulletin. ENGINE AND ENGINE COOLING. Dealer message - American Honda (AHM) is investigating certain 2014 MDXs & RLXs with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1]Heater System Malfunction) or P0134 (Rear Air Fuel Ratio Sensor [Bank 1, Sensor 1]Heater System Malfunction) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting any further repair of any kind.
DLR MSG - RFP -2017-12-08. Service bulletin. EXTERIOR LIGHTING. Dealer message - American Honda (AHM)is investigating certain 2014 MDXs & RLXs with a complaint of the Malfunction Indicator Lamp (MIL)on with the DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1]Heater System Malfunction)or P0134 (Rear Air Fuel Ratio Sensor [Bank 1, Sensor 1]Heater System Malfunction)stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting any further repair of any kind.
DLR MSG - RFP -2017-10-27. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Dealer message - American Honda (AHM) is investigating certain 2014-2015 MDXs & RLXs with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1] Heater System Malfunction) or P0134 (Rear Air Fuel Ratio Sensor [Bank 1, Sensor 1] Heater System Malfunction) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting any repair.
DLR MSG - RFP (R2017-10-15. Service bulletin. FUEL SYSTEM, GASOLINE. Dealer message - American Honda (AHM) is investigating certain 2014 MDXs & RLXs with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1] Heater System Malfunction) or P0134 (Rear Air Fuel Ratio Sensor [Bank 1, Sensor 1] Heater System Malfunction) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting any further repair of any kind.
DLR MSG - RFP -2017-09-27. Service bulletin. ELECTRICAL SYSTEM. Dealer message - American Honda (AHM) is investigating certain 2014-2015 RLXs with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1]Heater System Malfunction) or P0134 (Rear Air Fuel Ratio Sensor [Bank 1, Sensor 1]Heater System Malfunction) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting any repair.
DLR MSG - RFP -2017-09-27. Service bulletin. ELECTRICAL SYSTEM. Dealer message - American Honda (AHM) is investigating certain 2014-2015 RLXs with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1]Heater System Malfunction) or P0134 (Rear Air Fuel Ratio Sensor [Bank 1, Sensor 1]Heater System Malfunction) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting any repair.
DLR MSG - RFP -2017-09-27. Service bulletin. ELECTRICAL SYSTEM. Dealer message - American Honda (AHM) is investigating certain 2014-2015 RLXs with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1]Heater System Malfunction) or P0134 (Rear Air Fuel Ratio Sensor [Bank 1, Sensor 1]Heater System Malfunction) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting any repair.
DLR MSG - RFP -2017-09-27. Service bulletin. ELECTRICAL SYSTEM. Dealer message - American Honda (AHM) is investigating certain 2014-2015 RLXs with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1]Heater System Malfunction) or P0134 (Rear Air Fuel Ratio Sensor [Bank 1, Sensor 1]Heater System Malfunction) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting any repair.
DLR MSG - RFP -2017-09-27. Service bulletin. ELECTRICAL SYSTEM. Dealer message - American Honda (AHM) is investigating certain 2014-2015 RLXs with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1]Heater System Malfunction) or P0134 (Rear Air Fuel Ratio Sensor [Bank 1, Sensor 1]Heater System Malfunction) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting any repair.
ENG REQ - BER1412017-08-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. Engineering request for investigation - American Honda (AHM) is investigating certain 2014-2015 RLXs with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1] Heater System Malfunction) or P0134 (Rear Air Fuel Ratio Sensor [Bank 1, Sensor 1] Heater System Malfunction) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting any repair.
DLR MSG - RFP -2017-08-25. Service bulletin. ENGINE. Dealer message - American Honda (AHM) is investigating certain 2014-2015RLXs with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1]Heater System Malfunction) or P0134 (Rear Air Fuel Ratio Sensor [Bank 1, Sensor 1]Heater System Malfunction) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting any repair.
DLR MSG - RFI -2017-08-25. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. Dealer message - American Honda (AHM) is investigating certain 2014-2015 MDX & RLXs with a complaint that the Malfunction Indicator Lamp (MIL) is on and DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1]Heater System Malfunction) or P0134 (Rear Air Fuel Ratio Sensor [Bank 1, Sensor 1]Heater System Malfunction) is stored. To fully understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to any repair.
DLR MSG - RFI -2017-08-25. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. Dealer message - American Honda (AHM) is investigating certain 2014-2015 MDX & RLXs with a complaint that the Malfunction Indicator Lamp (MIL) is on and DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1]Heater System Malfunction) or P0134 (Rear Air Fuel Ratio Sensor [Bank 1, Sensor 1]Heater System Malfunction) is stored. To fully understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to any repair.
DLR MSG - RFI -2017-08-25. Service bulletin. ELECTRICAL SYSTEM. Questionnaire for 2014-2015 MDX/RLX MIL On with DTC P0154 or P0134 Stored
DLR MSG - RFI -2017-08-25. Service bulletin. ELECTRICAL SYSTEM. Dealer message - American Honda (AHM) is investigating certain 2014-2015 MDX & RLXs with a complaint that the Malfunction Indicator Lamp (MIL) is on and DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1]Heater System Malfunction) or P0134 (Rear Air Fuel Ratio Sensor [Bank 1, Sensor 1]Heater System Malfunction) is stored. To fully understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to any repair.
DLR MSG - RFI -2017-08-15. Service bulletin. FUEL SYSTEM, OTHER. Dealer message - American Honda (AHM) is investigating certain 2014-2015 MDX & RLXs with a complaint that the Malfunction Indicator Lamp (MIL) is on and DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1]Heater System Malfunction) or P0134 (Rear Air Fuel Ratio Sensor [Bank 1, Sensor 1]Heater System Malfunction) is stored. To fully understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to any repair.
ENG REQ - BER1412017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. Engineering request for investigation - American Honda (AHM) is investigating certain 2014-2015 RLXs with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1] Heater System Malfunction) or P0134 (Rear Air Fuel Ratio Sensor [Bank 1, Sensor 1] Heater System Malfunction) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting any repair.
DLR MSG - RFI -2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING. Dealer message - American Honda (AHM) is investigating certain 2014-2015 MDX & RLXs with a complaint that the Malfunction Indicator Lamp (MIL) is on and DTC P0154 (Front Air Fuel Ratio Sensor [Bank 2, Sensor 1] Heater System Malfunction) or P0134 (Rear Air Fuel Ratio Sensor [Bank 1, Sensor 1] Heater System Malfunction) is stored. To fully understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to any repair.
B15-0352017-06-28. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE. SERVICE BULLETIN - THE MIL COMES ON WITH DTC P0134 (REAR A/F SENSOR [BANK 1, SENSOR 1] HEATER SYSTEM MALFUNCTION) AND/OR P0154 (FRONT A/F SENSOR [BANK 2, SENSOR 1] HEATER SYSTEM MALFUNCTION).

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