There are 2 stored owner reports matching the engine leading-label group for the 2021 Mitsubishi Outlander Sport in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)The contact owns a 2021 Mitsubishi Outlander Sport. The contact stated while driving at an unknown speed, the Service Engine warning light illuminated. The vehicle was taken to a local AutoZone where it was diagnosed and determined that the catalytic convertor needed to be replaced. The local dealer was not contacted. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 47,000.
This was in a rental from National Car Rental from the Las Vegas airport. I was driving down the road at about 65-70 MPH when the vehicle's brakes just slammed on, and everything about the car just died. There was a huge groaning sound as it happened - kind of like when you are in 'park' and push the gas pedal and it revs really high. I tried shifting into neutral, nothing changed, and all the lights and functions of the car went out. I did my best to "direct" (couldn't steer) the car to the edge of the road. It was a busy remote highway, I was in the 'fast' lane. so could move over as far as I could to the other side of the white line while basically groaning to a halt. When I stopped all of the power shut down, the car would not restart and at first the battery and "service engine now" lights came off, then everything stopped. After a bit the battery came back on so I could at least charge my phone to use it to call for assistance. I have an email from National saying it appeared to be an engine malfunction. When this happened I was on Highway 93 between Las Vegas and Kingman Arizona (right around mile marker 30). It is a split highway with a dirt median. I was on the inside of the median. Fortunately when it happened there was no one directly behind me or they would have hit me. This is the main thoroughfare between NV and northern AZ here, so it is basically semi trucks going >70 mph the whole stretch. I had to sit in the car for 2 hours waiting for the tow truck to arrive. I did not get out of the car because I was more scared of distracting a driver and veering into me, whereas sitting in the car I was just as scared, but I thought at least I had an airbag if I was crashed into. I was honestly terrified the whole time. I sent numerous emails and made numerous calls that document all of this. I have pictures and video of the situation. The car was picked up by Jone's Towing from Kingman AZ.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.