Problems · NHTSA complaints

2021 Mitsubishi Outlander Sport problems

Owners filed 19 complaints about the 2021 Mitsubishi Outlander Sport with NHTSA between May 2022 and Sep 2026. The most-cited component is electrical system (6).

Complaints
19
Filed with NHTSA
Crashes
0
Reported by owners
Fires
0
Reported by owners
Injuries
0
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Electrical system6
  2. Engine5
  3. Power train3
  4. Vehicle speed control3
  5. Forward collision avoidance3
  6. Lane departure2
  7. Back over prevention1
  8. Fuel/propulsion system1
  9. Engine and engine cooling1
  10. Seat belts1
  11. Other / unknown4

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Oct 28, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20224
20233
20246
20252
20264

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Electrical system

6 reports
“The contact owns a 2021 Mitsubishi Outlander Sport. The contact stated that the catalytic converter was stolen from the vehicle, and a new catalytic converter was installed. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to an independent mechanic, who diagnosed the vehicle with catalytic converter failure. The vehicle was not repaired. The contact called the dealer, but no assistance was provided. The failure persisted. The contact recently received an Extended Warranty for the infotainment touch screens due to common software and connectivity failures. The vehicle was not repaired. The manufacturer was notified of the failure; however, no assistance was provided. The failure mileage was approximately 6,000.”
Owner complaint to NHTSAFiled Jan 9, 2026Electrical system, EngineODI 11710012

Engine

5 reports
“At freeway speeds in the heat the vehicle intermittently and suddenly flashes yellow check engine light and vehicle shakes as it loses most of the engine power, forcing a slow or stop to "limp it" off the highway. No warnings no noises no change in emissions noted. Calls to dealerships and have been told they don't know what it is and haven't heard of any issues.”
Owner complaint to NHTSAFiled Sep 19, 2026EngineODI 11765535

Power train

3 reports1 related recall
“I own a 2021 Mitsubishi Outlander Sport. Mitsubishi's records show that Safety Recall C2204R/SR-22-004 was previously completed on my vehicle. This recall addressed improper CVT-ECU software programming that could cause an incorrect CVT gear-ratio command and potentially result in engine over-rev, engine damage, stalling, and an increased risk of a crash. My vehicle experiences serious and concerning problems following sustained driving at highway speeds. The vehicle begins to sputter and does not operate normally. Multiple dashboard warning lights begin flashing, and the backup camera activates and displays on the screen even though the vehicle is actively traveling forward and has not been placed in reverse. Because of these experiences, I intentionally avoid driving my vehicle for extended periods at higher highway speeds. I am particularly concerned about whether these symptoms could be associated with the CVT, CVT-ECU, vehicle electronics, or the condition previously addressed by Safety Recall C2204R/SR-22-004. The fact that Mitsubishi's records indicate the recall was completed raises additional concern for me about whether the recall remedy remains…”
Owner complaint to NHTSAFiled Sep 22, 2026Power train, Vehicle speed controlODI 11766146

Vehicle speed control

3 reports
“I was turning out of my neighborhood and as I accelerated to merge with traffic my car started jerking. My dashboard “D” symbol only started flashing on and off and then my transmission service required light came on, (just had it done 8/25 and it is 11/25) and the BSW service required light came on as well. As I continued down the street everytime I pressed on the gas pedal the car kept jerking backwards and forward.”
Owner complaint to NHTSAFiled Nov 6, 2025Vehicle speed control, Unknown or other, Lane departureODI 11698038

Forward collision avoidance

3 reports
“Driving home with no other cars around the forward collision warning goes off for no reason losing power and slowing down on it's own. This has been an ongoing situation since the car was new, I've made numerous attempts to have my local dealership look into this situation and all they tell me is to take video when it happens.”
Owner complaint to NHTSAFiled Feb 8, 2025Electrical system, Forward collision avoidanceODI 11641459

Lane departure

2 reports
“The software system in regard to the BSW and FCM. The car tried to put itself in reverse while we were driving. Yes, the problem has been reproduced on the computer only. The vehicle is currently at the dealership being looked at now. The transmission service light came on, the FCM temporarily not available, came on, and the BSW light came on.”
Owner complaint to NHTSAFiled Dec 26, 2023Lane departure, Forward collision avoidanceODI 11561895
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 28, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.