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2018 Mitsubishi Outlander Sport Recalls, Issues & Maintenance

The 2018 Mitsubishi Outlander Sport carries 2 open NHTSA recalls — most recently covering software and adaptive cruise control. Owners report 4 recurring issue clusters, led by “Electrical system failure disables vehicle.” Mitsubishi publishes short, conservative intervals: oil every 7,500 miles normal / 3,750 severe, and — unlike many rivals — an explicit CVT fluid replacement schedule rather than a 'lifetime fill' claim. Read the severe-service column honestly: stop-and-go city trips, short hops, and hot climates all qualify, and they describe how most Mirages actually live. The 10-year/100,000-mile powertrain warranty stays intact only with documented on-schedule service.

2 Open Recalls

Source: NHTSA

ELECTRICAL SYSTEM:SOFTWARE

Campaign #18V620000 · Sep 14, 2018

Issue: Mitsubishi Motors North America (MMNA) is recalling certain 2018 Mitsubishi Outlander PHEV, Outlander Sport, 2018-2019 Eclipse Cross, and 2017-2018 Outlander vehicles equipped with a Forward Collision Mitigation (FCM) system that detects pedestrians. Due to incorrect software, the FCM-ECU (Electronic Control Unit) may apply braking for longer than needed, even after a pedestrian is no longer detected.

Risk: If the FCM-ECU software activates the brake for longer than necessary, the driver may react by applying additional braking. The resulting rapid deceleration of the vehicle can increase the risk of a rear-end collision.

Fix: MMNA will notify owners, and dealers will reprogram the FCM-ECU software with updated software, free of charge. The recall is began October 16, 2018. Owners may contact MMNA customer service at 1-888-648-7820. MMNA's number for this recall is SR-18-007.

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

Campaign #18V621000 · Sep 14, 2018

Issue: Mitsubishi Motors North America, Inc. (MMNA) is recalling certain 2018 Mitsubishi Outlander Sport vehicles equipped with a Forward Collision Mitigation (FCM) system and 2018 Mitsubishi Outlander PHEV and Eclipse Cross vehicles and 2017-2018 Outlander vehicles equipped with an Adaptive Cruise Control (ACC) system and/or an Electric Parking Brake (EPB) system. The software for the Hydraulic Unit Electronic Control Unit (ECU) may be incorrect, possibly preventing the intervention of a safety system such as automatic emergency braking, Anti-lock Braking (ABS), Electronic Stability Control (ESC), or the Brake Auto Hold (BAH) function when any of these systems are in use.

Risk: If the safety systems do not function as intended, it can increase the risk of a crash.

Fix: MMNA will notify owners, and dealers will update the Hydraulic Unit-ECU software, free of charge. The recall began October 16, 2018. Owners may contact MMNA customer service at 1-888-648-7820. MMNA's number for this recall is SR-18-008.

Recall data refreshed Sep 13, 2026.

Known issues for this vehicle

What drivers and federal regulators have officially reported about the 2018 Mitsubishi Outlander Sport.

Reported to NHTSA

Electrical system failure disables vehicle

ELECTRICAL SYSTEM

2 NHTSA complaints · 2019-05 → 2020-05

“ON MAY 1, 2020 I DROVE ABOUT 15 MILES FROM MY HOME TO MEDFORD, OREGON. I MADE ONE STOP AND UPON GETTING BACK INTO THE VEHICLE, I COULD NOT START OR TURN OFF THE ELECTRICAL COMPONENT OF THE VEHICLE. THE MAINFRAME KEPT SHOWING "ELECTRICAL SYSTEM SERVICE REQUIRED" I COULD NOT LOCK”
— Owner report, NHTSA ODI #11323200
“PUSH BUTTON START FAILED. DASH MESSAGE "ELECTRICAL FAILURE". CAR WAS PARKED. TRIED TO START. BUTTON STARTED FLASHING AND MESSAGE APPEARED ON DASHBOARD. AFTER SECOND ATTEMPT, HEARD AN ELECTRICAL SHORT BEHIND THE GLOVE BOX AREA”
— Owner report, NHTSA ODI #11205710

Read all complaints on NHTSA →

Airbags fail to deploy in crash

AIR BAGS

3 NHTSA complaints · 2020-12 → 2025-08

“On 05AUG25, my wife was involved in a frontal collision while driving our 2018 Mitsubishi Outlander Sport. The vehicle struck another vehicle at an estimated speed of over 30 mph, resulting in significant damage to the front passenger side, including deformation of the hood and”
— Owner report, NHTSA ODI #11679419
“This is a follow-up and correction to a complaint previously submitted for VIN [XXX] regarding airbag non-deployment during a passenger-side T-bone collision on [XXX]. A [XXX] child was properly restrained in a rear-facing car seat in the rear passenger-side seat. The vehicle”
— Owner report, NHTSA ODI #11679429

Read all complaints on NHTSA →

Airbag warning light illuminates without cause

AIR BAGS

3 NHTSA complaints · 2024-10 → 2026-03

“The contact owns a 2018 Mitsubishi Outlander Sport. The contact stated that upon starting the vehicle, the air bag light warning light was illuminated. The contact stated that the vehicle was taken to a local dealer to be diagnosed. The contact was informed that the air bag”
— Owner report, NHTSA ODI #11641815
“Air bag symbol is lit on dash. Technicians unable to find issue, nor were they able to reset light. I feel the importance of said system functioning properly needs addressed. Not just we e can't find what is wrong.Nothing else we can do. No, that's b s”
— Owner report, NHTSA ODI #11722776

Read all complaints on NHTSA →

Transmission stalls and loses power

POWER TRAIN, ELECTRICAL SYSTEM

3 NHTSA complaints · 2020-01 → 2024-11

“I am filing this complaint regarding serious safety issues with my 2018 Mitsubishi Outlander Sport, VIN: [XXX] , purchased from Carvana in 2019. Recurring transmission problems have created a significant safety risk for me and others. About a year after purchase, the vehicle’s”
— Owner report, NHTSA ODI #11624824
“ISSUE #1 Transmission light turns on and car starts feeling forced. My car is available for inspection upon request. Transmission issue almost caused the vehicles behind me bump into my vehicle, on a 75 mile highway going uphill. My vehicle was at normal speed then suddenly”
— Owner report, NHTSA ODI #11485359

Read all complaints on NHTSA →

Issues on other model years

Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Sep 13, 2026. Investigation data refreshed Sep 13, 2026.

We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.

Essential maintenance

Critical for safety and preventing major damage

Engine Oil & Filter

Every 7,500 mi

Replace every 7,500 miles normal / 3,750 severe. Mirage's 1.2L three-cylinder holds barely over 3 quarts — small sumps punish stretched intervals. 0W-20 on most recent models.

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.

CVT Fluid

Every 60,000 mi

Mitsubishi schedules CVT fluid replacement — commonly every 60,000 miles normal / 30,000 severe (check your year's table). Use only the specified CVT fluid (J4/CVTF-J4 family); generic ATF destroys the belt-and-pulley unit.

Estimated cost — typical U.S. ranges

Dealer

~$360–$500

Shop

~$255–$355

DIY

~$80–$180

CVT fluid is manufacturer-specific and pricey — do NOT substitute conventional ATF.

Tire Rotation

Every 7,500 mi

Rotate with every oil change. Light Mirages are easy on tires but the economy-focused OEM rubber wears fast when neglected.

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.

Brake Inspection

Every 7,500 mi

Inspect pads, rotors/drums, and lines at each service — Mirage G4 retains rear drums, which need periodic adjustment checks.

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.

Brake Fluid

Every 30,000 mi

Replace every 2-3 years per the schedule. Cheap job, big ABS-unit insurance.

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.

Important maintenance

Keeps your vehicle running smoothly and efficiently

Spark Plugs

Every 60,000 mi

Iridium plugs commonly every 60,000 miles on the Mirage's 3A92 and Lancer's 4B11 — verify your year's table, as some engines list up to 105,000.

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.

Engine Air Filter

Every 15,000 mi

Mitsubishi's schedule replaces the engine air filter every 15,000 miles — shorter than most brands, and a 5-minute DIY on the Mirage.

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.

Drive Belt

Every 60,000 mi

Inspect from 60,000 miles and replace on cracking. The Mirage's single serpentine belt also drives the A/C — a failure strands the car's accessories at once.

Estimated cost — typical U.S. ranges

Dealer

~$195–$235

Shop

~$135–$165

DIY

~$20–$50

DIY-friendly if you can reach the tensioner. Inspect for cracks rather than swap on a strict mileage interval.

Recommended maintenance

Extends the life of your vehicle and improves comfort

Cabin Air Filter

Every 15,000 mi

Replace every 15,000 miles, behind the glovebox. Often skipped at quick-lube visits — worth checking if airflow feels weak.

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.

Coolant Replacement

Every 60,000 mi

First change around 60,000 miles, then roughly every 30,000-45,000 per the schedule. Mitsubishi long-life coolant or equivalent OAT for your year.

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.

Battery Test & Service

Every 25,000 mi

Test annually after year 3. Small-battery economy cars have little reserve — the first cold snap finds a weak one.

Estimated cost — typical U.S. ranges

Dealer

~$225–$390

Shop

~$160–$280

DIY

~$130–$250

Most auto-parts stores test and install batteries free with purchase. Skip the dealer markup.

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 Mitsubishi Outlander Sport reflects Mitsubishi's published service intervals. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.

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