2018 Acura MDX Service and Repair Manual

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Factory-Grade Data

The 2018 Acura MDX service and repair manual is a practical, OEM-style reference for maintenance, diagnostics, and repair work. You’ll get step-by-step procedures, specifications, torque values, diagrams, and system information to help you troubleshoot accurately and finish jobs faster.

Ideal for professional technicians and DIY owners, this manual covers core vehicle systems including engine, brakes, steering, suspension, HVAC, and wiring diagrams. Instant digital access after purchase.

Trims covered

  • SH-AWD Sport Utility 4-Door
  • Sport Hybrid Sport Utility 4-Door
  • Base Sport Utility 4-Door

Engines covered

  • 3.5L 3471CC V6 GAS SOHC Naturally Aspirated
  • 3.0L 2997CC V6 FULL HYBRID EV-GAS (FHEV) SOHC Naturally Aspirated

Index / Table of contents

  • Body
  • Body Repair
  • Body Repair Basic
  • Brakes
  • Control System DTCs
  • Driving Support & Restraints
  • Engine
  • HVAC
  • Network Communication
  • Paint Repair Basic
  • Steering
  • Suspension
  • Symptom
  • Trans/Driveline
  • Vehicle General Information
  • Wiring Diagrams

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Vehicle Safety Data

2018 Acura MDX Recalls & Complaints

NHTSA #19V25600028/03/2019Component: EXTERIOR LIGHTING:TAIL LIGHTS

Honda (American Honda Motor Co.) is recalling certain 2014-2019 Acura MDX and 2017-2019 Acura MDX Sport Hybrid vehicles. Moisture may enter the tailgate lid lights, possibly causing a loss of the tail

Consequence

Loss of the taillights reduces the vehicle's visibility, increasing the risk of crash.

Remedy

Acura will notify owners, and dealers will modify the tailgate lid lights and install updated gasket

NHTSA #23V85800018/12/2023Component: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

Honda (American Honda Motor Co.) is recalling certain 2013-2023 Honda Accord, Civic Coupe, Civic Sedan, Civic Hatchback, Civic Type R, CR-V, HR-V, Ridgeline, Odyssey, Acura ILX, MDX, MDX Hybrid, RDX,

Consequence

Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.

Remedy

Dealers will replace the fuel pump module, free of charge. Owner letters were mailed September 6, 2

NHTSA #23V75100013/11/2023Component: ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL

Honda (American Honda Motor Co.) is recalling certain 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2016 and 2018-2019 Pilot, 2017 and 2019 Ridgeline, and 2018-2019 Odyssey vehicles. Due to a manufacturi

Consequence

A damaged engine may run improperly or stall while driving, increasing the risk of a fire, crash, or

Remedy

Dealers will inspect and repair, or replace the engine as necessary, free of charge. Owner letters

NHTSA #19V29800012/04/2019Component: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

Honda (American Honda Motor Co.) is recalling certain 2018-2019 Acura MDX and Honda Pilot vehicles and 2019 Acura RLX, RLX Sport Hybrid, TLX and Honda Odyssey and Ridgeline vehicles. The timing belt

Consequence

Teeth separation from the timing belt may result in an engine stall, increasing the risk of crash.

Remedy

Honda will notify owners, and dealers will inspect the vehicle and replace any affected timing belt

TSB #11028523

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

TSB #11023136

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.

TSB #11020860

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.

TSB #11020584

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 res

TSB #11019900

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.

TSB #11019899

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.

TSB #11017330

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.

TSB #11015014

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.

Showing the 8 most recent of 139 technical service bulletins on file with NHTSA.

20211206Component: ELECTRICAL SYSTEMCrash reportedFire reported

In San Diego on 11/15/2021, my daughter side swiped a parked vehicle in residential area driving about 30 miles. No airbags deployed. A minute later the car stopped and would not start and started to

20211206Component: ENGINECrash reportedFire reported

In San Diego on 11/15/2021, my daughter side swiped a parked vehicle in residential area driving about 30 miles. No airbags deployed. A minute later the car stopped and would not start and started to

20211206Component: FUEL/PROPULSION SYSTEMCrash reportedFire reported

In San Diego on 11/15/2021, my daughter side swiped a parked vehicle in residential area driving about 30 miles. No airbags deployed. A minute later the car stopped and would not start and started to

20180328Component: SERVICE BRAKESCrash reported2 injured

PURCHASED ACURA MDX IN JANUARY OF 2018 SO IT IS NOW 3 MONTHS. I BELIEVE THERE IS SOMETHING SIGNIFICANTLY WRONG WITH ITS AUTOMATIC BRAKING SYSTEM. I WAS DRIVING DOWN A HILL ON A RESIDENTAL, FAST PACED

20241209Component: ENGINE AND ENGINE COOLINGCrash reported

The contact owns a 2018 Acura MDX. The contact stated that at an idle stop, he allowed another vehicle to complete a turn. As the contact depressed the accelerator pedal to make a left turn, the vehic

Showing the 5 most serious of 261 complaints filed with NHTSA.

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