general problems of the 2023 Mitsubishi Outlander

Six problems related to engine and engine cooling have been reported for the 2023 Mitsubishi Outlander. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2023 Mitsubishi Outlander based on all problems reported for the 2023 Outlander.

1 Engine And Engine Cooling problem

Failure Date: 04/17/2026

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.

2 Engine And Engine Cooling problem

Failure Date: 03/28/2026

The electrical system in my 2023 Mitsubishi Outlander has repeatedly malfunctioned since September 2023. The primary failure involves the dashboard completely shutting down while the vehicle is in motion, resulting in the loss of critical driving information such as speed and system warnings. The issue is intermittent but ongoing and may be available for inspection upon request. This failure creates a serious safety risk because I am unable to see essential driving information while operating the vehicle, placing both myself and my family at risk. The vehicle has been taken to authorized Mitsubishi dealerships multiple times for these issues. Repairs have been performed during these visits; however, none have permanently resolved the problem. The issue temporarily stops after repairs but eventually returns and continues to recur. The problem has been reproduced multiple times. The vehicle has been inspected by authorized Mitsubishi service departments on multiple occasions, but the underlying issue has not been properly diagnosed or permanently repaired. Prior to failure, there have been repeated battery-related issues and sensor malfunctions. The vehicle has required at least three battery replacements since purchase. These symptoms often occur before the dashboard shuts down. In addition to the electrical issue, the vehicle has also experienced fuel pump concerns, which have persisted despite repair attempts. This ongoing and recurring defect makes the vehicle unsafe to operate and remains unresolved.

3 Engine And Engine Cooling problem

Failure Date: 01/26/2026

The ev portion of the phev is often not providing power to the motors, even though, there are still plenty of battery power available. The vehicle sometimes gave "power reduced" warning that usually went away after 30 minutes, and the vehicle cannot go into ev mode. When in ev mode and just cruising on the highway, it barely has power to keep up with traffic and sometimes it is losing speed just on a slight incline on the road causing me to move over or take it out of ev mode just to get power from the gas engine. In one occasion, I driving in ev mode and merging onto the highway. I stepped on the gas and the car was barely, if at all, accelerating. Fortunately, there wasn't vehicle coming from the highway.

4 Engine And Engine Cooling problem

Failure Date: 12/20/2024

1) 12/20/2024: took the car to a Mitsubishi dealer as the 'check engine light' was on for a few days. They erased the code but could not diagnose the cause. Returned home and could not charge the car using the same standard outlet (level 1) I used since I bought the car. The instrument cluster displayed the following (please see pic 1): a) error message 'phev system fault, service required'. B) check engine light. C) forward collision mitigation system [fcm] off warning light. D) rear automatic emergency braking [rear aeb] system off warning light. E) plug-in hybrid ev system warning light. Since 12/20/2024, I have been driving the car with these serious safety issues. 2) 1/2/2025: 'on-board charger' was replaced by the dealer. But the same error continued. Per dealer invoice, they "performed drive cycle pattern 3 and the code returned". Obviously under certain conditions, the erased code returned. 3) since mid-November, 2024, I have been noticing two different ev range mileage. Please see pic 2. My phone app showed (on 1/26/2025) a 51 mile ev range whereas the instrument cluster showed only a 39 mile range. All the errors still remain as of 1/26/2025. 4) opened a case with Mitsubishi but they are refusing to respond with updates. With so many safety issues due to 'phev system fault', I am afraid of taking the car out.

5 Engine And Engine Cooling problem

Failure Date: 03/31/2024

I keep getting a message on my dashboard that indicates my engine malfunction power reduced service now…. This is the second time this has happen … first time I took it to dealer they said OH they don’t see anything after taking to put it on machine and it said my engine was failing then today easter it’s back and it’s really scaring me and the dealer is to far to be driving the car and this message keeps appearing.

6 Engine And Engine Cooling problem

Failure Date: 12/23/2023

Vehicle does not operate at temperatures below approximately 10 degrees fahrenheit due to manufacture failure to install a battery heater. Was inexplicably deleted from 2023 model year of vehicle. The heat pump system also does not work at low temperatures therefore an electrical resistance heating system is needed. Also, vehicles will not accept charge at low temperatures. The problem can only be confirmed at temperatures below 10 degrees. Vehicle warning lights confirm the problem is due to low temperature conditions. Research indicates numerous complaints that manufacturers are aware of and refuse to address. Could leave owner stranded if leaving vehicle in a cold location.


Other Engine And Engine Cooling related problems of the 2023 Mitsubishi Outlander

Engine And Engine Cooling problems
6
Gas Recirculation Valve (egr Valve) problems
1


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