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ProblemsByVinFile / 2018-ACURA-MDXNHTSA data synced 12 hours ago
Acura
2018 Acura MDX problems
The 2018 Acura MDX has 164 NHTSA owner complaints and 10 active recall campaigns on file. Here's the breakdown — what's serious, what's noise, and what a working mechanic would actually do about it.
The 2018 Acura MDX has 164 NHTSA owner complaints and 10 recalls on file (U.S. federal records, as of September 2026). The most-reported system is engine at 30 complaints (~$3,100 to repair). Source: NHTSA Office of Defects Investigation.
Average for the segment. Some recurring trouble spots worth knowing about.
0
Critical
10
Severe
0
Moderate
Should you avoid this 2018 MDX?
Acceptable — with caveats
Worth owning if you verify the specific issues below before you buy.
Engine: 30 complaints, classified severe
Reliability score 5.6/10 — around the segment average
10 recall campaigns on file
Our read of the federal NHTSA complaint and recall record for this exact year and model —
not a substitute for a pre-purchase inspection. How we score.
NHTSA crash-test safety ratings
5 / 5 overall
Overall★★★★★5/5
Frontal crash★★★★★5/5
Side crash★★★★★5/5
Rollover★★★★★4/5
Driver-assist features on the tested model:
Electronic stability control: Standard · Forward collision warning: Standard · Lane departure warning: Standard
Source: NHTSA New Car Assessment Program — tested configuration: 2018 Acura MDX SUV AWD. Stars rate crash protection in NHTSA's tests, not overall reliability — see the owner-complaint data below for what actually goes wrong.
Buying a used 2018 Acura MDX? Check these first
Here's what this model is known to do — so you can inspect for it, price it in, or
make the seller fix it before you sign.
What to inspect on this specific car
engine — 30 owner reports
· ~$3,100 to fix
electrical — 23 owner reports
· ~$850 to fix
powertrain — 22 owner reports
· ~$2,500 to fix
cruise control — 11 owner reports
· ~$600 to fix
⚠ The one to take seriously: engine is flagged
severe on this model
.
Inspect it closely on a test drive.
Recalls to confirm are done
Run the VIN from the listing — 10 active recalls on this model. Recall repairs are always free.
Verdict for buyers: 5.6/10 model. The priciest documented failure is
engine (~$3,100) — get the
seller's service records for it or inspect closely. Otherwise an average-risk used buy at a fair price.
We tell you what this model is known for and what to inspect — a vehicle-history report
tells you what this exact car has been through. Smart buyers get both.
A noise, a warning light, a repair quote, "should I buy this?" — get an answer grounded in
this vehicle's actual NHTSA record, not generic advice.
Dash light, leak, worn part — snap it and we'll read it against this car's record.
Photo attached — type a question or just hit Ask.
Answers use this vehicle's NHTSA complaint & recall record — owner-reported and unverified, not a diagnosis. Verify anything safety-critical with a mechanic.
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What owners are saying
recent NHTSA-filed complaints · verbatim
2018 MDX· engine
The contact owns a 2018 Acura MDX. The contact received notification of NHTSA Campaign Number: 23V858000 (Fuel System, Gasoline) and 23V751000 (Engine and Engine Cooling); however, parts to do the recall repair were unavailable. The contact stated that the manufacturer had…
The engien keep stalling, prolem accelerating jurky transmisión and this is the only car I have to go work I take the highway everyday I am cosern that something can happend to me.
The contact owns a 2018 Acura MDX. The contact received notification of NHTSA Campaign Number: 23V751000 (ENGINE AND ENGINE COOLING); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for…
While preparing to enter the expressway my 2018 MDX stalled and various dashboard lights came on. My family and I drifted into the median while nearly being hit by passing car. It took about 10 minutes before the MDX became operational again. I took it to a local mechanic…
Had a problem with your 2018 Acura MDX?
File a complaint with NHTSA → It's free and official — owner filings are what build the federal safety record behind this page.
Estimate your repair exposure
Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
American Honda Motor Company (Honda) is recalling certain 2016-2022 Honda Pilot, 2017-2023 Ridgeline, 2019-2023 Passport, and 2014-2020 Acura MDX vehicles that were sold in Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, or Wisconsin
Failure of rear suspension components, such as the rear control arm, can cause a loss of vehicle handling and control, increasing the risk of a crash or injury.
Fix: Dealers will inspect the rear subframe and install a rear subframe reinforcement kit and, as necessary, repair or replace the rear subframe components, free of charge. Interim letters notifying owners of the safety risk were mailed July 27, 2026. Additional letters will be sent once the final remedy is available, anticipated in the fall of 2026. Owners may contact Honda's customer service at 1-888-234-2138. Honda's numbers for this recall are AOU and AOT. Vehicle Identification Numbers (VINs) involved in this recall will become searchable on NHTSA.gov beginning June 10, 2026.
Air bags that deploy unintentionally during a crash increase the risk of injury.
Fix: Dealers will replace the seat weight sensors, free of charge. Owner notification letters were mailed July 7, 2026. Owners may contact Honda's customer service at 1-888-234-2138. Honda's numbers for this recall are BOL, WO9, OOA, WOM, XOH, NOC, POD, BOE, UOF, POB, EOG, AOI, QO8, TOJ, DO7, and SOK. This recall expands previous NHTSA recall number 24V064. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning May 29, 2026.
Vehicle lights that fail to illuminate can decrease visibility and increase the risk of a crash.
Fix: Dealers will inspect the wiring and install a fuse harness, replace the lid light, and repair the body dust sealer, as necessary, free of charge. Owner notification letters were mailed May 30, 2025. Owners may contact Acura's customer service at 1-800-382-2238. Acura's number for this recall is FLI. Vehicles included in this recall that were previously repaired under NHTSA recall number 19V-256 will need to have the new remedy completed.
It's got known weak points. With a reliability score of 5.6 out of 10 based on 164 owner complaints filed with NHTSA, the 2018 Acura MDX has a higher-than-average rate of reported issues. The areas to watch are listed above. Whether it's worth owning depends on price, condition, and how much repair exposure you can absorb.
Should you avoid the 2018 Acura MDX?
The 2018 Acura MDX is acceptable, with specific caveats. Worth owning if you verify the specific issues below before you buy. The record behind that call: Engine: 30 complaints, classified severe; Reliability score 5.6/10 — around the segment average; 10 recall campaigns on file. This is our read of the federal complaint and recall data — not a substitute for a pre-purchase inspection.
What should I check before buying a used 2018 Acura MDX?
Inspect the engine first — it's the most-reported issue on this model, with 30 owner complaints filed. Average repair cost runs about $3,100 at an independent shop. Also confirm any open recalls have been completed by running the VIN, and ask for service records covering the problem areas listed above.
Is the 2018 Acura MDX a good used car to buy?
It scores 5.6 out of 10 on our NHTSA-based read of 164 owner complaints. The main thing to watch is engine. Priced fairly and clean on inspection, it's a reasonable used buy. Our data covers what this model is known for — pair it with a vehicle-history report on the VIN to see what that specific car has been through.
What's the most common problem on the 2018 Acura MDX?
Based on NHTSA records, the most-reported issue is engine, with 30 complaints filed. Average repair cost runs about $3,100 at an independent shop.
What's the most expensive thing that goes wrong?
The engine is one of the costlier repair items. Average repair cost runs about $3,100 at an independent shop. Catching early warning signs can sometimes extend life by 20–30,000 miles.
How do I check if my Acura MDX has open recalls?
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Is an extended warranty worth it on a 2018 Acura MDX?
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 164 complaints on file and the costliest repair averaging $3,100, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans are not always better value.
Recall and complaint data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database, last synced 12 hours ago. Verify the raw federal record at
nhtsa.gov/vehicle/2018/Acura/MDX.
Editorial commentary written by ProblemsByVin contributors and reviewed by ASE-certified mechanics.
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