Model year guide

2018 Mazda MX-5

Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2018 Mazda MX-5 is worth — from official NHTSA and EPA data. 30 on record.

2018 Mazda MX-5 — representative photo
Representative photo · via Wikimedia Commons

2018 Mazda MX-5 at a glance

Safety recalls3
Owner complaints3
Combined29 mpg

Included: that car's specs and build sheet, model-year recall campaigns and a fair price.

2018 Mazda MX-5 recalls 3

Air Bags: Air Bag/restraint Control Module:software NHTSA Campaign #24V695000 · manufacturer #6924I · 18/09/2024

Mazda North American Operations (Mazda) is recalling certain 2016-2023 MX-5 Miata vehicles. A software error in the air bag control module may cause the front air bags to deploy with excessive force during a crash. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."

Fix: Dealers will update the Sophisticated Air Bag Sensor (SAS) control module software, free of charge. Owner notification letters were mailed November 7, 2024. Owners may contact Mazda customer service at 1-800-222-5500. Mazda's number for this recall is 6924I.

Fuel System, Gasoline:delivery:fuel Pump NHTSA Campaign #21V875000 · manufacturer #5321K · 12/11/2021

Mazda North American Operations (Mazda) is recalling certain 2018 Mazda3, Mazda6, 2019 CX-3, 2018-2019 MX-5, CX-5, CX-9, and 2019-2020 Mazda2 vehicles. The impeller inside the low-pressure fuel pump may crack and deform, potentially causing the fuel pump to fail.

Fix: Dealers will replace the fuel pumps, free of charge. Owner notification letters were mailed July 18, 2022. Owners may contact Mazda customer service at 1-800-222-5500 Option 4. Mazda's number for this recall is 5321K.

Power Train:automatic Transmission:control Module (tcm/pcm/tecm) NHTSA Campaign #19V072000 · manufacturer #3019A · 01/02/2019

Mazda North American Operations (Mazda) is recalling certain 2016-2019 MX-5 (Miata) vehicles with automatic transmissions. Due to incorrect programming of the Transmission Control Module (TCM), certain conditions may cause the vehicle to unexpectedly downshift and abruptly decelerate.

Fix: Mazda will notify owners, and dealers will reprogram the TCM with corrected software, free of charge. The recall began March 14, 2019. Owners may contact Mazda customer service at 1-800-222-5500, option 4. Mazda's number for this recall is 3019A.

Source: U.S. NHTSA, checked 4 Nov 2026. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.

2018 Mazda MX-5 common problems

The most-reported problem areas across all 3 owner complaints filed with NHTSA — and what to check before you buy.

Power Train
Drive through every gear: watch for slipping, hard or delayed shifts, and shudder. Check for transmission/driveline leaks and noises.
Electrical System
Test every electrical feature: windows, locks, infotainment, charging and all lights. Watch for flickering, dead accessories or warning lights.
Vehicle Speed Control
Test cruise control and throttle response, and watch for any hesitation or unintended acceleration.
Engine
Listen for knocks or ticking, check for leaks and blue/white exhaust smoke, and make sure it doesn't overheat. No check-engine light should be on.
Structure
Inspect for rust, fresh undercoating, mismatched paint, uneven panel gaps and any sign of prior collision or frame repair.

2018 Mazda MX-5 MPG & running costs

Combined29 mpg
City26 mpg
Highway34 mpg
Est. annual fuel cost$2,850
EPA size classTwo Seaters
TransmissionAutomatic (S6) or Manual 6-spd
5-yr fuel cost vs average new car$2,250 more

Source: U.S. EPA / DOE fueleconomy.gov. The EPA lists 2 versions of this model year; combined is shown as a range and the other figures are averages.

Estimated 5-year cost to own

A rough guide to what running a 2018 Mazda MX-5 costs over five years and 75,000 miles.

Fuel (5 yrs)$14,250
Fuel only$14,250
Per mile$0.19

How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.

Dimensions & weight

Length
153.9 in
Width
68.1 in
Height
48.8 in
Wheelbase
90.9 in
Curb weight
2,333 lb
Front track
59.4 in
Rear track
59.8 in

Manufacturer-reported figures for the 2018 Mazda MX-5 — ranges cover the 2 body / drivetrain versions on record. Source: Transport Canada vehicle specifications via NHTSA.

Investigations & service bulletins

Manufacturer service bulletins 367

Technical notes the manufacturer sent to dealers about known issues and fixes. Useful to mention to a mechanic — they are not recalls and repairs may not be covered. Showing the 10 most recent of 367.

DESCRIPTION If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by asking if any aftermarket devices have been installed. Aftermarket device…

Bulletin SA-041-26a · Electrical System · Sep 2026

This SA supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-061/25 12/17/25 DESCRIPTION If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proc…

Bulletin SA-041-26 · Electrical System, Engine · Jun 2026

DESCRIPTION Some vehicles may exhibit scratches (1) on the rear of the seat back bar garnish (2) from contact with the convertible top (3). Due to assembly variations, the clearance between the seat back bar garnish and the convertible top is too small on some…

Bulletin 09-020-26 · Structure, Seats · Jun 2026

This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 01-008/23 06/05/23 Some vehicles may exhibit rattling noises from the engine compartment and oil leakage from the drive belt auto tensioner. This may be caus…

Bulletin 01-008-26 · Power Train · May 2026

DESCRIPTION Some vehicles may require the replacement of a damaged VIN plate or vehicle certification label. To obtain a replacement VIN plate (bulkhead-mounted and visible through the lower-left area of the windshield), contact DAG (Dealer Assistance Group) u…

Bulletin SA-031-26 · Structure · Apr 2026

This Service Alert supersedes the previously issued SA listed below: The changes are noted in Red. SA-011/24 02/12/24, 06/06/24, 07/29/24 DESCRIPTION Mazda has developed factory recommended scheduled maintenance services that support all major vehicle systems.…

Bulletin SA-029-26 · Power Train, Service Brakes, Engine · Apr 2026

This Service Alert supersedes the previously issued M-Tip(s) listed below. The changes are noted in Red text. MT-002/19 09/30/19 and 12/19/19 DESCRIPTION If an engine assembly is replaced after a catastrophic internal mechanical failure, clean the intake manif…

Bulletin SA-026-26 · Engine · Apr 2026

This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 08-002/25 08/06/25 Some customers may complain that the front passenger seat belt warning light flashes and the seat belt warning beep is activated, even tho…

Bulletin 08-001-26 · Air Bags · Apr 2026

This Service Alert supersedes the previously issued SA(s) and TSB(s) listed below: The changes are noted in Red. SA-035/24 05/31/24 DESCRIPTION There is a concern that some water pumps are being replaced that are not faulty, due to signs of a very small coolan…

Bulletin SA-014-26 · Engine · Mar 2026

Some vehicles may exhibit the power window(s) not working properly (window does not move or has fallen into the door) and/or making an abnormal noise while operating the power window switch. This may be caused by the cable of the power window motor being damag…

Bulletin 09-007-26 · Electrical System, Structure · Jan 2026

Source: NHTSA Office of Defects Investigation, listed for the MX-5 RWD. Model-year data, not specific to one car.

About the Mazda MX-5

The Mazda MX-5 is a lightweight two-seat sports car manufactured and marketed by Mazda. While in most markets it is called the MX5, in Japan it is marketed as the Mazda Roadster or, previously, as the Eunos Roadster, and In the United States it is sold as the Mazda MX-5 Miata. The name miata derives from Old High German for "reward", and the MX-5 nameplate was derived from it being the fifth vehicle produced by the Mazda experimental division.

From Wikipedia, licensed CC BY-SA 4.0. Describes the model line in general, not this model year specifically.

2018 Mazda MX-5 trims & engines on record

Trims
Grand Touring (Hard Top) · Touring
Engines
2.0L 4-cyl 155 hp · 2.5L 4-cyl 184 hp

2018 Mazda MX-5 vehicles on record

Other Mazda MX-5 model years

2018 Mazda MX-5 — frequently asked questions

Does the 2018 Mazda MX-5 have any safety recalls?

NHTSA lists 3 recall campaigns for the 2018 Mazda MX-5. Whether an individual car still needs a recall repair depends on its VIN — check it on NHTSA.gov or ask a franchised dealer. Recall repairs are done at no charge.

What are the most common problems with the 2018 Mazda MX-5?

Across all 3 owner complaints filed with NHTSA, the most-reported problem areas are power train, electrical system, vehicle speed control.

What gas mileage does the 2018 Mazda MX-5 get?

The 2018 Mazda MX-5 has a U.S. EPA estimate of 29 mpg combined (26 city / 34 highway).

Sources: NHTSA (recalls, complaints, crash tests), U.S. EPA (fuel economy). Vehicle data only — CarLogs never shows owner information.