Mitsubishi Outlander overheating problems

Filed Oct 19, 2026 · Electrical, Engine · GA

My 2023 Mitsubishi Outlander has experienced recurring high engine-temperature readings, misfires, and two overheating-related engine shutdowns while driving, creating a risk of unexpected power loss in traffic. The vehicle has been evaluated repeatedly by authorized Mitsubishi dealerships without identifying the underlying cause. Air in the cooling system was documented in September 2025, with the dealership noting it could cause the engine to run hotter than normal. In September 2026, a dealership again reported a significant amount of air in the cooling system. Previous cooling-system service temporarily improved the symptoms, but they returned. The temperature gauge repeatedly approaches H while driving, particularly with the A/C operating, and decreases when I slow down or turn off the A/C. These episodes occur WITHOUT an illuminated Check Engine Light or other warning message. During an earlier incident, the Check Engine Light appeared the following morning but went off before diagnostic codes could be retrieved. At the most recent dealership visit, I provided photographic evidence of the high temperature reading. The dealership's diagnostic equipment reportedly found no issue, but a technician's personal scanner identified a battery-related problem and additional codes. The battery was replaced, yet the temperature problem continued. On October 17, 2026, at approximately 98,395 miles, I again photographed the temperature gauge approaching H without any warning light. Despite multiple inspections, the cause remains UNKNOWN. I am concerned about another engine shutdown and a potential collision. The vehicle is available for inspection.

Filed May 9, 2026 · Engine · TX

What component or system failed or malfunctioned, and is it available for inspection upon request? The vehicle experienced an apparent engine failure involving the engine cooling system and possible head gasket and/or engine damage. Prior to failure, the vehicle had a strong sweet coolant smell and was later diagnosed by the servicing dealership as having a coolant leak and possible engine-related damage requiring engine replacement. The vehicle is currently located and available for inspection at Don Herring Mitsubishi. How was your safety or the safety of others put at risk? While driving after leaving the dealership, the vehicle began jerking, hesitating during acceleration, and losing power unexpectedly. A flashing check engine light briefly appeared and disappeared. The sudden loss of normal engine performance created a serious safety hazard because the vehicle could have stalled in traffic, increasing the risk of an accident or collision. I also have eight children, including [XXX] twins, and the loss of transportation has prevented me from reliably getting my children to school, medical appointments, and obtaining necessities. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes. Don Herring Mitsubishi inspected the vehicle and identified a coolant leak and possible major engine damage. The dealership advised that the engine may need replacement. The warranty company, CNA Extended Warranty, stated the dealership’s submitted notes referenced a blown head gasket and requested further teardown and inspection before approving repairs. The vehicle remains unrepaired while awaiting further action and/or engine replacement. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? The vehicle has been inspected by Don Herring Mitsubishi and reviewed through CNA Extended Warranty as part of the repair claim process. Prior to the failure, the vehicle was also inspected on Marc INFORMATION REDACTED PURSUANT TO THE FREEDOM OF

Filed Apr 19, 2026 · Engine · MD

What component or system failed or malfunctioned, and is it available for inspection? The engine experienced catastrophic internal failure. A connecting rod broke and punctured the engine block, rendering the vehicle completely inoperable. This failure is consistent with overheating and internal engine damage. The vehicle is currently available for inspection upon request. How was your safety or the safety of others put at risk? The failure occurred suddenly while driving, without warning. The vehicle lost power immediately, which could have resulted in loss of control, inability to accelerate, and exposure to traffic hazards. This created a serious safety risk to myself and others on the road. Has the problem been reproduced or confirmed by a dealer or independent service center? An independent mobile mechanic inspected the vehicle and confirmed catastrophic engine failure. Based on the condition of the engine and damage observed, the failure is consistent with severe overheating and internal mechanical breakdown. Full written diagnosis may be pending. Dealer inspection: UNKNOWN”) Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? The vehicle has not yet been inspected by the manufacturer. Insurance has been notified and may conduct an inspection. The MD state trooper deemed the car inoperable and tagged it. Were there any warning lamps, messages, or symptoms prior to the failure? There were no warning lights, messages, or indications of an issue prior to the failure. The incident occurred suddenly and without warning the same day the vehicle was purchased. At the time of failure, the vehicle had an open and unremedied safety recall (SR-18-001 – Drive Belt Auto Tensioner, the federal safety agency Campaign #18V069). This defect can cause the drive belt to detach, disabling the water pump and leading to rapid engine overheating. The failure I experienced is consistent with this defect. . The incident occurred day of pur

Filed Aug 7, 2025 · Engine · PA

I have a coolant leak with my EGR cooler. The part is on back order for 90 days. Clearly the EGR cooler is being replaced on these cars on a regular so there must be a defect if I can’t get my vehicle fixed for 90 days or more

Filed Oct 24, 2024 · Engine, Fuel system · 96,416 miles · TX

The contact owns a 2022 Mitsubishi Outlander. The contact stated while driving 40 MPH, the vehicle was shuddering. The contact stated that the vehicle was losing motive power. The vehicle failed to start. The contact added additional fuel. The contact stated that the failure was related to the federal safety agency Campaign Number: 22V027000 (Fuel System, Gasoline). The vehicle was taken to the local dealer, where it was diagnosed and determined that the fuel pump was faulty and there was no recall coverage for the failure. The vehicle was repaired but the failure recurred. While driving at unknown speeds, the vehicle sputtered, hesitating and jerking. The contact stated that the engine overheated and started sputtering. The engine warning light was illuminated. The temperature gauge increased to high. The contact was able to move over to the side of the roadway. The vehicle was taken back to the same local dealer, where it was diagnosed and determined that the coolant module and relay needed to be replaced. The vehicle was not repaired. The manufacturer was contacted, but no additional assistance was provided. The failure mileage was approximately 96,416.

Filed May 5, 2024 · Brakes, Transmission · OK

Transmission not working properly. It said overheating and then stopped driving suddenly whil driving. Very unsafe. Also issue with parking break that just stopped working. This car seems to be a lemon. Not sure why this is happening.

Filed Jan 15, 2024 · Engine · FL

Mechanics said when they replaced the engine coolant an air bubble entered the line and caused the module to fail. The car overheated when I got on the interstate 5 minutes after leaving the dealership.

Filed Dec 17, 2023 · Electrical, Engine · WI

On Dec 8,2023 our mitsubishi outlander shut off while being driven. When this occurred multiple warning lights come on including, service engine immediately, engine overheating (which it was not) and multiple other lights. It was towed to the dealership where they told us the ECU is bad. Mitsubishi no longer makes the part. They have also told us this is the 3rd vehicle in the last month with the same issue. Car had no power/electrical /engine issues prior to this event. Mitsubishi is offering no solution to fix the issue. Luckily when the car shut down we were driving at a low speed in a neighborhood. If this had happened on the freeway it could have been very dangerous. We now have no car, no possibility of repair and no answers to why this happened without warning.

Filed Feb 3, 2021 · Brakes · 44,000 miles · CA

Tl* the contact owns a 2016 mitsubishi outlander. The contact stated that while driving at various speeds, the vehicle stalled without warning. The contact took the vehicle to south coast mitsubishi (2480 harbor blvd, costa mesa, ca 92626) where they inspected the vehicle and could not find a defect. Upon return of the vehicle, the contact experienced the failure again while traveling on the highway with the transmission overheat and brake system warning lights illuminated. The contact then received notification of the federal safety agency campaign number :20v741000 (parking brake) however, the part to do the recall repair was unavailable. The contact had also taken the vehicle to cerritos mitsubishi (10944 south st, cerritos, ca 90703) where they inspected the vehicle and they also were unable to diagnose the failure. The manufacturer was made aware of the issue. The failure mileage was approximately 44,000. Vin tool confirms parts not available.

Filed Oct 23, 2019 · Transmission · 133,609 miles · VA

Tl* the contact owns a 2014 mitsubishi outlander. While driving 45 MPH, the CVT warning indicator illuminated and "overheating please slow down" appeared on the instrument panel. The contact was able to park on the side of the road for thirty minutes to wait for the warning indicator to turn off before restarting the vehicle. While driving up a hill, the vehicle would not exceed 30 MPH. The vehicle was towed to colonial mitsubishi (300 myers dr, charlottesville, va 22901, (888) 833-2507) where the CVT was reset. The dealer diagnosed that the transition needed to be replaced. The vehicle was towed for a second time to pomoco mitsubishi hampton (located at 4206 w mercury blvd, hampton, va 23666, (757) 890-8800) where it was diagnosed that the transition needed to be replaced. The vehicle was not repaired. The manufacturer was notified. The failure mileage was 133,609.