# Service bulletin BTI\&11162021904

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.

- Type: Service bulletin
- NHTSA id: 10203637
- Published by NHTSA: 2021\-11\-24
- Manufacturer's number: BTI\&11162021904
- Manufacturer's date: 2021\-11\-16
- NHTSA component: FUEL SYSTEM, GASOLINE

## NHTSA's summary

Dealer Message \- American Honda Motor Co., Inc. \(AHM\) is searching for certain 2016\-2020 MDXs, RDXs \& TLXs with a client complaint of the Malfunction Indicator Light \(MIL\) on with the DTC P030X \(Cylinder Misfire Detected\), P0171 \& P0174 \(Rear/Front Bank Fuel System Too Lean\), or P219A\&B \(Air\-Fuel Ratio Variation of Cylinder\) 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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10203637-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10203637-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Fuel system

## Trouble codes named

P0171, P0174, P219A

## Vehicles listed

- 2016 to 2020 ACURA MDX
- 2016 to 2020 ACURA RDX
- 2016 to 2020 ACURA TLX

## Recalls for the same vehicles and component

- [2024262](/recalls/tc/2024262.md), 2024-05-06: Fuel System
- [2023679](/recalls/tc/2023679.md), 2023-12-18: Fuel System
- [23V858000](/recalls/nhtsa/23V858000.md), 2023-12-18: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
- [2021182](/recalls/tc/2021182.md), 2021-03-26: Fuel System
- [21V215000](/recalls/nhtsa/21V215000.md), 2021-03-25: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
- [2020236](/recalls/tc/2020236.md), 2020-05-28: Fuel System
- [20V314000](/recalls/nhtsa/20V314000.md), 2020-05-28: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
- [19V060000](/recalls/nhtsa/19V060000.md), 2019-01-29: FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP
- [17V424000](/recalls/nhtsa/17V424000.md), 2017-06-30: FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
- [16V417000](/recalls/nhtsa/16V417000.md), 2016-06-09: FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY

## Other bulletins for the same vehicles and component

- [B26\-025](/bulletins/11037721.md), 2026-10-01, Service bulletin: FUEL/PROPULSION SYSTEM. Service Bulletin \- The factory fuel fill pipe assembly may not have been manufactured to specification. As a result, small contamination particles inside the fuel fill neck may prevent the primary shut\-off valve flap seal from sealing properly. This may result in a fuel smell from the fuel fill neck area and may cause DTC P0455 or P0456 \(EVAP system leak detected\) to be set.
- [B26\-023](/bulletins/11037720.md), 2026-10-01, Service bulletin: FUEL/PROPULSION SYSTEM. Service Bulletin \- The factory fuel fill pipe assembly may not have been manufactured to specification. As a result, small contamination particles inside the fuel fill neck may prevent the primary shut\-off valve flap seal from sealing properly. This may result in a fuel smell from the fuel fill neck area and may cause DTC P0455 or P0456 \(EVAP system leak detected\) to be set.
- [BEBM09252026901](/bulletins/11037712.md), 2026-10-01, Other: FUEL/PROPULSION SYSTEM. Dealer Message \- The fuel fill pipe assembly may not have been manufactured to specification. As a result, small contamination particles inside the fuel fill neck may prevent the primary shut\-off valve flap seal from sealing, resulting in fuel smell from the fuel fill neck area and may cause DTC P0455 or P0456 \(EVAP system leak detected\) to be set.
- [ONL6AX01302026](/bulletins/11028523.md), 2026-02-06, Other: FUEL/PROPULSION SYSTEM. Owner Notification Letter \- Under certain circumstances, after coming to a stop and the idle stop feature engaging, the vehicle may not automatically restart. Acura is providing a product update with a new PGM\-FI software update to fix this issue.
- [B23\-035](/bulletins/10247626.md), 2023-12-23, Service bulletin: ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. Service Bulletin \- Due to variations in the purge control solenoid valve spring, the valve wears unevenly and intermittently sticks. This may result in setting DTC P0441 \(Evaporative Emission \(EVAP\) System Purge Flow Malfunction\).
- [BTI\&03282023902](/bulletins/10233673.md), 2023-04-04, Service bulletin: ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. Dealer Message \- American Honda Motor Co., Inc. \(AHM\) is investigating certain 2020\-2022 MDXs \& RDXs with a client complaint of the Check Engine Light \(CEL\) on \& the DTC P0087 \(Fuel Rail Pressure Too Low \[Loss of Fuel Pressure\]\) stored. In some cases, the customer may also experience such conditions as engine hard to start, no start or start \& stumble in conjunction with CEL. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
- [BTI\&03132023906](/bulletins/10232969.md), 2023-03-18, Service bulletin: FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. Dealer Message \- American Honda Motor Co., Inc. \(AHM\) is investigating certain 2020\-2022 MDXs \& RDXs with a client complaint of the Check Engine Light \(CEL\) on \& the DTC P0087 \(Fuel Rail Pressure Too Low \[Loss of Fuel Pressure\]\) stored. In some cases, the customer may also experience such conditions as engine hard to start, no start or start \& stumble in conjunction with CEL. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
- [BTI\&02072023902](/bulletins/10231832.md), 2023-02-15, Service bulletin: FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. Dealer Message\- American Honda Motor Co., Inc. \(AHM\) is investigating certain 2020\-2022 MDXs \& RDXs with a client complaint of the Check Engine Light \(CEL\) on \& the DTC P0087 \(Fuel Rail Pressure Too Low \[Loss of Fuel Pressure\]\) stored. In some cases, the customer may also experience such conditions as engine hard to start, no start or start \& stumble in conjunction with CEL. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
- [BTI\&01182023901](/bulletins/10230596.md), 2023-01-25, Service bulletin: ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE. Dealer Message \- American Honda Motor Co., Inc. \(AHM\) is investigating certain 2020\-2022 MDXs \& RDXs with a client complaint of the Check Engine Light \(CEL\) on \& the DTC P0087 \(Fuel Rail Pressure Too Low \[Loss of Fuel Pressure\]\) stored. In some cases, the customer may also experience such conditions as engine hard to start, no start or start \& stumble in conjunction with CEL. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
- [BTI\&01032023904](/bulletins/10229696.md), 2023-01-11, Service bulletin: ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE. Dealer Message \- American Honda Motor Co., Inc. \(AHM\) is investigating certain 2020\-2022 MDXs \& RDXs with a client complaint of the Check Engine Light \(CEL\) on \& the DTC P0087 \(Fuel Rail Pressure Too Low \[Loss of Fuel Pressure\]\) stored. In some cases, the customer may also experience such conditions as engine hard to start, no start or start \& stumble in conjunction with CEL. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.

JSON: [/v1/bulletins/10203637](/v1/bulletins/10203637)

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