Manufacturer-recommended service intervals for the Maintenance Minder and open recall alerts for your 2018 Acura Tlx.
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Acura's Maintenance Minder calculates oil life from real engine conditions and shows service codes instead of fixed mileages — code A or B (oil / oil + inspection) plus sub-codes for items like tire rotation (1), air filters (2), or transmission fluid (3). Follow the codes, not the calendar. One interval you should never stretch: most Acura 3.5L V6 engines (MDX, TL) use a timing belt with a roughly 105,000-mile / 7-year replacement — a snapped belt on this interference engine means bent valves. SH-AWD models add a rear-differential fluid service that's essential for the torque-vectoring unit.
FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP
Campaign #19V060000 · Jan 29, 2019
Issue: Honda (American Honda Motor Co.) is recalling certain 2016-2018 Acura MDX, 2015-2019 Acura TLX and 2015-2017 Honda Accord vehicles, equipped with a 3.5L V6 engine. Particulates in fuel may adhere to the internal components of the fuel pump, reducing its performance.
Risk: Reduced fuel pump performance can result in an engine stall, increasing the risk of crash.
Fix: Honda will notify owners, and dealers will update the fuel injection engine control unit (FI-ECU) software and, if necessary, replace the fuel pump, free of charge. The recall began March 25, 2019. Owners may contact customer service at 1-888-234-2138. Acura's recall number for this recall is P3W. Honda's recall number for this recall is N3X.
ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL
Campaign #23V751000 · Nov 13, 2023
Issue: 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 manufacturing error, the connecting rod bearing in the engine may wear and seize, damaging the engine.
Risk: A damaged engine may run improperly or stall while driving, increasing the risk of a fire, crash, or injury.
Fix: Dealers will inspect and repair, or replace the engine as necessary, free of charge. Owner letters were mailed March 28, 2024. 2016-2017 Acura MDX owner letters were mailed November 1, 2024. 2016-2020 Acura MDX owner letters are expected to be mailed in mid-December 2024. Honda began mailing owner notification letters as of March 18, 2024. 2015-2016 Acura owner letters are expected to be mailed mid-December 2024, 2018 Acura TLX owner letters are expected to be mailed the end of March/early April 2024, 2019 Acura TLX owner letters are expected to be mailed mid-May 2024, 2020 Acura TLX owner letters are expected to be mailed mid-June 2024, and 2016-2020 Acura MDX owner letters are expected to be mailed January 27, 2025. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for these recalls are XG1 and GG0.
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
Campaign #23V858000 · Dec 18, 2023
Issue: 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, RLX, TLX, 2019-2022 Honda Insight, Passport, 2020 Honda CR-V Hybrid, 2018-2019 Honda Clarity PHEV, Fit, and 2015-2020 Honda Accord Hybrid, Pilot, Acura NSX vehicles. The fuel pump inside the fuel tank may fail.
Risk: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.
Fix: Dealers will replace the fuel pump module, free of charge. Owner letters were mailed September 6, 2024. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are KGC and KGD. This recall is an expansion of NHTSA recall numbers 21V-215 and 20V-314.
AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION:FRONT PASSENGER
Campaign #26V332000 · May 21, 2026
Issue: Honda (American Honda Motor Co.) is recalling certain 2018-2021, 2023 Acura TLX, 2019-2024 RDX, 2017-2020, 2022-2026 MDX, 2017-2021, 2023, 2025 Honda Ridgeline, 2017-2022 Pilot, 2019-2021 Passport, 2018-2026 Odyssey, 2019-2022 Insight, 2019-2021 HR-V, 2018-2020 Fit, 2020-2022 CR-V Hybrid, 2017-2022 CR-V, 2017-2018, 2021 Civic Type R, 2017-2021 Civic hatchback, 2016-2020 Civic coupe, 2016-2022 Civic, 2017-2022 Accord Hybrid, and 2016-2022 Accord vehicles. The front passenger seat weight sensor may crack and short circuit, which can cause the air bags to deploy unintentionally during a crash.
Risk: 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.
Critical for safety and preventing major damage
Change when the Maintenance Minder reaches 15% oil life or shows code A/B — typically every 7,500-10,000 miles with 0W-20 synthetic. Short-trip city driving triggers the code sooner; that's the algorithm doing its job.
Estimated cost — typical U.S. ranges
Dealer
~$120–$160
Shop
~$85–$115
DIY
~$25–$55
Full synthetic costs more than conventional. 5-quart 0W-20 + filter is the typical bill.
J-series V6: replace the timing belt around 105,000 miles or 7 years (Maintenance Minder sub-code 4). It's an interference engine — a failed belt destroys valves. Replace the water pump and tensioner in the same job. (2022+ MDX 3.5L remains belt-driven; the Integra's turbo four is chain-driven.)
Estimated cost — typical U.S. ranges
Dealer
~$935–$1175
Shop
~$655–$825
DIY
Pro only
On interference engines, a snapped belt destroys valves. Worth doing on schedule. Bundle water pump + tensioner — labor is already there.
Rotate when sub-code 1 appears — roughly every 7,500 miles. SH-AWD models: keep tread depths matched across all four corners.
Estimated cost — typical U.S. ranges
Dealer
~$85
Shop
~$60
DIY
Free
Often free at the shop where you bought the tires — worth asking before paying.
Inspect pads, rotors, and fluid level with every A/B service. Type S models with Brembo front calipers: pads wear faster and cost more — budget ahead.
Estimated cost — typical U.S. ranges
Dealer
~$85
Shop
~$60
DIY
Free
Most shops do this free as a courtesy with any service. Don't pay separately if you can avoid it.
Replace every 3 years regardless of mileage — Honda/Acura schedules this on time because the fluid absorbs moisture.
Estimated cost — typical U.S. ranges
Dealer
~$180–$200
Shop
~$125–$140
DIY
~$10–$25
DOT 3 or 4 — match the cap. Vacuum bleeders make this a one-person DIY.
Keeps your vehicle running smoothly and efficiently
Replace ATF when sub-code 3 appears — commonly every 30,000-60,000 miles depending on duty. Use Honda/Acura ATF only (DW-1, or the 10-speed's specified fluid); aftermarket 'universal' ATF causes shudder in these gearboxes.
Estimated cost — typical U.S. ranges
Dealer
~$330–$500
Shop
~$235–$355
DIY
~$60–$180
Some sealed transmissions have no dipstick — fill is precise and best left to a shop. Many drivers can still DIY drain-and-fill.
SH-AWD (MDX, TLX, RDX): replace the rear differential fluid roughly every 30,000 miles (sub-code 6) — the torque-vectoring clutch packs run in this fluid, and whining or binding in tight turns is the classic overdue symptom.
Estimated cost — typical U.S. ranges
Dealer
~$150–$195
Shop
~$105–$135
DIY
~$20–$50
Iridium plugs around 100,000 miles on most models. Turbocharged Integra/ADX engines: check the manual — forced induction typically shortens the interval.
Estimated cost — typical U.S. ranges
Dealer
~$285–$390
Shop
~$200–$275
DIY
~$25–$100
Iridium plugs cost more but last 100k+ miles. V6/V8 access varies wildly — some are tough.
Replace with sub-code 2, roughly every 30,000 miles — sooner in dusty conditions.
Estimated cost — typical U.S. ranges
Dealer
~$60–$95
Shop
~$45–$70
DIY
~$15–$40
5-minute job on most cars; the airbox lid usually has clips, no tools needed.
Extends the life of your vehicle and improves comfort
Replace with sub-code 2 alongside the engine air filter. Behind the glovebox — an easy DIY on most Acuras.
Estimated cost — typical U.S. ranges
Dealer
~$60–$95
Shop
~$45–$70
DIY
~$15–$40
Usually behind the glovebox. Shops charge labor for a 10-minute job — easy DIY win.
Honda/Acura Type 2 coolant: first change around 10 years / 100,000 miles, then every 5 years / 50,000. Use the blue Type 2 coolant only.
Estimated cost — typical U.S. ranges
Dealer
~$285–$330
Shop
~$200–$235
DIY
~$25–$60
Use the manufacturer-specified coolant — wrong color/chemistry can damage the cooling system.
What drivers and federal regulators have officially reported about the 2018 Acura Tlx.
No Restart After Auto Start/Stop Engages
Action #EA25004 · opened Mar 26, 2025
On June 3, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE22005 after the agency received VOQs and several field reports concerning the Auto Idle Stop (AIS) feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to r…
Engine failure
Action #PE25008 · opened Aug 20, 2025
The Office of Defects Investigation (ODI) has received 414 reports of connecting rod bearing failures in the 3.5L V6 engine used in the following vehicles: Model Years (MY) 2018-2020 Acura TLX, MY2016-2020 Acura MDX, MY2016-2020 Honda Pilot, MY2018-2020 Honda Odyssey, and MY2017-…
ENGINE AND ENGINE COOLING
27 NHTSA complaints · 2023-06 → 2026-05
“The contact owns a 2018 Acura TLX. The contact stated while driving 65 MPH, the steering wheel started shuddering and the check engine warning light was illuminated. The contact pulled to the side of the road and turned off the vehicle. The contact stated that the vehicle failed…”
“Spun rod bearings at 88000 miles”
ENGINE AND ENGINE COOLING
6 NHTSA complaints · 2024-02 → 2024-10
“UNKNOWN - Called to schedule safety recall inspection and remedy, was told there is a waiting list for 15 months. Cannot inspect my car until September 2025”
“The contact owns a 2018 Acura TLX. The contact received notification of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had…”
ENGINE
5 NHTSA complaints · 2022-03 → 2023-01
“The Idle stop feature will NOT automatically restart and causes me to stall for an unsafe amount of time. There is a recall call for my Acura 2018 TLX but my VIN does not fall under the qualifying vehicles…”
“Engine fails to start after idle stop, when the idle-stop off button is not engaged, and the battery doesn't have enough power to re-start the vehicle. Essentially, the engine tries to start up at a traffic light/intersection but fails, causing the car to turn off…”
FUEL/PROPULSION SYSTEM
13 NHTSA complaints · 2021-02 → 2026-06
“Driving car and suddenly all the lights on the dash light up and car goes into “limp” mode. Upon pulling over turning car off and turning back on lights are all still lit up. Plug car into obd2 scanner and car is showing code p0087 low fuel rail pressure…”
“Car experiences intermittent hesitation and jerking during acceleration. When car is driven in "economy" mode the jerking begins at 20 mph. When the car is driven in "normal" mode the When accelerating and merging onto highway car was almost rear-ended twice due to sluggish…”
FORWARD COLLISION AVOIDANCE, LANE DEPARTURE
4 NHTSA complaints · 2024-09 → 2025-10
“I got 5 lights on my dash stating that I have an auto high beam problem, road departure mitigation system problem, collision mitigation system problem, lane keeping assist problem, and adaptive cruise control problem. I got these lights on my dash at the exact same time and this…”
“The contact owns a 2018 Acura TLX. The contact stated that while driving at an undisclosed speed, the Acura Watch warning light illuminated. The Adaptive Cruise Control, Lane Keep Assist System (LKAS), and Collision Mitigation warning lights were illuminated…”
FORWARD COLLISION AVOIDANCE
4 NHTSA complaints · 2019-07 → 2026-02
“I was rolling up to a stop light at approximately 20 mph when the frontal crash mitigation feature suddenly slammed the brakes on fully to a complete stop. I searched the web and found that there are other owners of this model that have had similar occurrences…”
“ON 6/25/19 AT 16:39 I WAS DRIVING MY 2018 ACURA TLX NORTHBOUND ON A FOUR LANE CITY STREET AT APPROXIMATELY 35 MPH. ROAD CONDITIONS WERE DRY AND CLEAR. AS I APPROACHED THE INTERSECTION, THE CMBS (COLLISION MITIGATION BRAKING SYSTEM) BEEPED…”
STEERING, LANE DEPARTURE
3 NHTSA complaints · 2022-03 → 2025-07
“I was driving and a lot of warning lights came on, on the dash and 10 different warning messages in the message center. The alignment instantly messed up jerking my car to the right and I had to try to gain control and correct. Luckily, I was only going about 25-30mph and was…”
“There are so many lights flashing, my vehicle will not go over 50MPH, My steering wheel is no longer straight its actually to the left. I brought it to Acura and they are stating its a REAR TOE ACTUATOR issue and refuse to cover the 5,100.00 fee to fix this issue that has had a…”
ELECTRICAL SYSTEM
3 NHTSA complaints · 2021-07 → 2025-04
“I have had several incidents where I have been unable to start the vehicle. The vehicle does not recognize the keyless remote even though it is present and has a good battery. We have been stranded several times because the car would not start. I have taken it to the dealer and…”
“When I press the start button with my key fob in range and with a new battery, the car won't start, but makes a rapid "ticking" noise while all of the dashboard lights flicker and other interior and exterior lights turn on. Despite repeated attempts over several hours, the car…”
Note: NHTSA also opened 1 defect investigation(s) on this vehicle that closed without action.
Issues on other model years
Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Jul 27, 2026. Investigation data refreshed Jul 27, 2026.
We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.
Typical U.S. ranges. Actual quotes vary by shop, parts choice, and vehicle condition.
How we estimate: Dealer = OEM parts × 1.4 + labor × $165/hr. Shop = parts + labor × $115/hr. DIY = parts only.
This maintenance schedule for the 2018 Acura Tlx reflects Acura's published service intervals and the Maintenance Minder system. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.