2019 Acura MDX TSBs

132 manufacturer communications for the 2019 Acura MDX sit in NHTSA's public file. A TSB is factory repair guidance, not a recall — the repair is not automatically free. The 2019 MDX problem report covers complaints, recalls, and investigations.

132Communications

What the bulletins cover

Engine40 bulletins
Electrical31 bulletins
Fuel system30 bulletins
Brakes & stability27 bulletins
Visibility & wipers15 bulletins
Transmission & drivetrain5 bulletins

Most recent service bulletins

The 20 most recent of 132 communications on file. The complete set is searchable on NHTSA's page for this vehicle.

Fuel system ONL6AX01302026 January 31, 2026

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.

Visibility & wipers B25-003 September 4, 2025

Service Bulletin - An uneven sealing surface allows moisture to enter the inner taillight(s), causing one or both of the inner taillights not to work.

Visibility & wipers B25-003 July 9, 2025

Service Bulletin - An uneven sealing surface allows moisture to enter the inner taillight(s), causing one or both of the inner taillights not to work.

Engine B23-002 July 7, 2025

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 client can immediately restart the vehicle by selecting Park and…

Electrical ONL6L806042025 Letter June 5, 2025

Owner Notification Letter - An uneven sealing surface allows moisture to enter the inner taillight(s), causing one or both of the inner taillights not to work.

Electrical ONL6L806042025 Form June 5, 2025

Owner Notification Letter - An uneven sealing surface allows moisture to enter the inner taillight(s), causing one or both of the inner taillights not to work.

Visibility & wipers B25-003 April 18, 2025

Service Bulletin - An uneven sealing surface allows moisture to enter the inner taillight(s), causing one or both of the inner taillights not to work.

Engine B24-022 February 19, 2025

Service Bulletin - The AWD warning light is on with one or more AWD DTCs having been set due to water intrusion into the electric oil pump motor connector area corrodes the terminals.

Body & structure B24-022 November 22, 2024

Service Bulletin - The AWD warning light is on potentially due to water intrusion into the rear differential pump motor connector area that corrodes the terminals.

Visibility & wipers B23-024 June 19, 2024

Service Bulletin - Client complaint of A/C not blowing cold air due to oil/refrigerant leak from the A/C compressor shaft seal.

Engine ONL6AX05292024 May 29, 2024

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.

Engine B24040A May 1, 2024

Service News - Due to On-Board Diagnostic (OBD) regulation change starting with 2019 vehicles, American Honda’s Variable Valve Timing and Lift Electronic Control (VTEC) On-Board Diagnostic monitors are now included in the EGR/VVT OBD Monitor Readiness status group. Due to some…

Visibility & wipers B23-024 January 24, 2024

Service Bulletin - Customers have complained that the air conditioning system is not blowing cold air due to Oil/Refrigerant leaking from the A/C compressor shaft seal.

Engine B23-035 January 10, 2024

Service Bulletin - The MIL comes on during vehicle operation 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).

Fuel system · Engine B23-035 December 15, 2023

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).

Visibility & wipers B23-024 July 14, 2023

Service Bulletin - Client complaint of A/C not blowing cold air due to a Oil/Refrigerant leak from the A/C compressor shaft seal.

Visibility & wipers B23-024 June 30, 2023

Service Bulletin - Honda has received customer complaints of the air conditioning system not blowing cold air due to an Oil/Refrigerant leak from the A/C compressor shaft seal.

Electrical BTI&05252023902 May 25, 2023

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2020 MDXs with a client complaint of the lid light (inner taillight) inop. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair…

Body & structure · Visibility & wipers B23-013 May 23, 2023

Service Bulletin - A driver can notice loss of auto function, or no function, of the sunroof glass/sunshade due to Motor-Control Unit error code in the clock frequency check falsely detecting a failure.

Electrical BTI&05092023902 May 9, 2023

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2020 MDXs with a client complaint of the lid light (inner taillight) inop. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair…

← 2019 MDX problems All MDX TSB years
Data updated 2026-08-20 from NHTSA's public records

Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.