2016 CHEVROLET MALIBU Engine Problems

Have been getting reduced engine power since the summer on and off. Check engine light says its throttle bottle sensor and accelerator pedal position sensor. Which I was told there was a recall but my vin isn’t listed

While driving, the vehicle experienced a mechanical failure involving the engine and lubrication system. Oil leakage was observed, and the engine began operating abnormally. This created a risk of sudden engine failure while the vehicle was in motion, which could result in loss of power, stalling, or loss of control, especially at highway speeds or in traffic. Prior to the failure, warning signs included abnormal engine behavior and fluid loss. The issue was not caused by driver error and occurred during normal operation. Continued operation in this condition presents a fire risk if oil contacts hot engine components. The problem has been inspected by a repair facility, and the failure appears to be related to a mechanical or manufacturing defect rather than wear or misuse. The component is available for inspection upon request. This defect poses a safety risk to the driver, passengers, and other motorists due to the possibility...

The contact owns a 2016 Chevrolet Malibu. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate. In addition, the vehicle occasionally accelerated independently. The contact stated that several unknown warning lights were illuminated, and the engine seized. The contact stated that the vehicle was jump-started daily, and the unknown warning lights turned off when the vehicle started. The vehicle was taken to the dealer; however, the failure was not duplicated. The vehicle was taken to several independent mechanics; however, the failure was not duplicated. In addition, the vehicle was taken back to the dealer where the vehicle was purchased; however, the failure was not duplicated. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 90,000.

URGENT Complaint: NO RESPONSE to Demand for Rescission - Odometer Fraud, Deceptive Practices - Banner Ford of Monroe, LA

The contact owns a 2016 Chevrolet Malibu. The contact stated that after driving and parking the vehicle, the contact entered the residence; however, upon returning to the vehicle, the vehicle failed to start. There were no warning lights illuminated. The vehicle was towed to the local dealer, and the contact was informed that the battery needed to be replaced. The battery was replaced. The vehicle was diagnosed, and determined that the camshaft, fuel vacuum pump, and camshaft sensor needed to be replaced. The Oxygen sensors were replaced. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 146,000.

The engine power reduced came light came on along with service stability trac. The car would stall after going into auto stop and just shut off. In certain instances it would shutoff when slowed down enough. It was brought in for service where the turbo charge solenoid starter and catalytic converter annd alternator all were replaced due to the turbo braking into pieces and being lodged into the converter and engine. Less than a week later the car returned to stalling at the auto stop feature. When brought in for service it was linked to the alternator and engine control module and mass air flow sensor. The car was then serviced again six months later for the alternator again. Now the car is once again stuck in engine power reduced with no direct codes linked to the problem and the starter was replaced and now the engine is remaining in...

My 2016 Chevrolet Malibu Limited (VIN: [XXX] ) experienced sudden loss of power while driving on 9/11/2025 and set code P228C. The dealership diagnosed the problem as the bolts coming loose from the high-pressure fuel pump, which caused the pump to detach from the cylinder head and become damaged, requiring replacement. This failure directly matches the defect described in NHTSA Recall 18V-358 (GM Campaign 18188/18268). That recall explains that the high-pressure fuel pump can detach from its mounting due to a weld failure, leading to oscillation, damage to the fuel system, and an increased risk of fire. Although the dealer phrased it as “bolts came loose,” the result is identical: the pump detached from the cylinder head and damaged the fuel system. Despite this, my VIN does not show an open recall. GM Customer Assistance told me the repair would not be covered because of the vehicle’s age and mileage...

Vehicle experiences a loss a power will driving. A lawsuit for defective throttle control and pedal position sensor was filed but eventually dismissed. GM is aware of the issue but has done nothing to fix it

The fuel pressure system is faulty and shutting the engine down and reducing speed

Engine power reduced defect, causing affected models to lose power while driving at highway speeds. My son’s was driving 55 mph and then all of sudden the car decelerated to 20 mph in minutes before his 2016 Malibu stalled on [XXX]. Unfortunately the car did not make it to the emergency lane and as a result a SUV hit his car killing my daughter who was 33 weeks pregnant. The baby survived with lifelong injuries. Despite this recall, GM failed to notify vehicle owners, including the owner of the vehicle involved in the fatal accident on [XXX], in Dallas, Texas, resulting in my daughter’s death. This defect has been found in several 2016 Malibus, prompting a class action lawsuit against GM. Plaintiffs in the class action lawsuit reported having to restart their vehicles or replace faulty accelerator pedal position sensors to address the issue. GM's failure to notify vehicle owners...

Brake booster pump failed ( gm part # 12704586 ) Causing limited braking and severe damage to internal engine components, camshafts ,timing chain have been damaged This is a ongoing problem in which i have had this pump replaced at my expense several times. The problem stems brake booster pump is lubricated using the engine's oil . Booster pump has a small screen to filter oil, this filter can easily become clogged resulting in booster to run dry and grenade into top of engine. These pieces then interfer with camshafts and timing gears other components

The contact owns a 2016 Chevrolet Malibu. The contact stated while driving on several occasions at various speeds, the check engine warning light illuminated, and the vehicle lost power. Additionally, the message “Engine Power Reduced" was displayed. The vehicle was taken to an independent mechanic and was diagnosed and determined that the throttle body sensor needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 107,000.

I am filing a complaint regarding ongoing and worsening issues with my Chevrolet vehicle, which appear to point to broader defects involving the engine and electrical systems. Months ago, while driving, the car suddenly lost power and displayed "Engine Power Reduced." I had to keep using it due to work needs. Over time, it hesitated more during acceleration and felt increasingly unsafe. When I finally brought it to a Chevrolet service center, I was told the issue involved the pistons. The vehicle also regularly shows a "Shift to Park" warning even when the gear is in Park, raising concerns about the transmission's reliability. The power loss continues, especially when going uphill — again triggering the "Engine Power Reduced" alert and dropping the speed to no more than 35 MPH. A diagnostic showed a P0302 code for a cylinder 2 misfire. The radio head unit, already replaced once under warranty, failed...

Took my car to Chevy dealership to diagnose my car, as it was rough idling, causing hesitation, and knocking... all while the check engine light was on. They showed me two codes my car was giving from the check engine light. They said he would look further into it. They told me I needed a tune up, though I had gotten a tune up 4 months prior. They fixed some things and charged me over $4,000. The day I drove off the lot, the problems were still present. On my way home going about 50 mph, my car slowed down and the engine reduced power illuminated. I kept driving because I needed a car for work. The car continued to decline and acted like it didn't want to accelerate when pressing the gas. I finally took it back into chevy, and they told me it was my pistons. I'm 90%...

To whom it may concern, I am writing to formally report a recurring safety-related issue with my 2016 Chevrolet Malibu. The vehicle consistently displays a “Shift to Park” warning message, even when the gear selector is properly in the Park position. This malfunction prevents the car from turning off completely and poses a serious safety and reliability concern. This issue first occurred while the vehicle was under warranty, and the dealership performed a repair. However, the problem has returned, and my warranty has since expired. Despite the previous fix, the issue continues to persist. This malfunction is widely documented among other 2016–2019 Chevy Malibu owners and appears to stem from a design or manufacturing flaw in the shifter assembly or park switch. I am concerned that this defect could: Prevent the vehicle from being securely parked. Lead to battery drain due to the vehicle not shutting off. Pose a risk...

The contact owns a 2016 Chevrolet Malibu. The contact stated that occasionally while attempting to accelerate the vehicle stalled. The contact stated that the failure also occurred while stopped at a traffic light. The contact was able to restart the vehicle and continued driving; however, the check engine warning light illuminated. The vehicle was taken to an independent mechanic where the vehicle was diagnosed and the contact was advised that the throttle position sensor, and the intake airflow system were faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 163,000.

Happened around 46000 miles after receiving a recall notice in the mail about the pedal positioning sensor causing a reduced engine power signal, and immediately reducing speeds on the interstate. Local Chevy dealership replaced. Fast-forward 80K miles and the same incident is happening, however likely not going to be covered by GM. Same message, same code being detected.

Car showing warning : engine power reduced Car decelerate unexpectedly Car won’t accelerate past 20 mph intermittently - when putting car in park, car won’t recognize when in the park positioned and shows warning : shift to park

I had my vehicle for about 2 years. I noticed that after I went over a certain amount of mileage, my car went into an engine power reduce mode. With the engine power reduce mode my vehicle could only go 25 mph. This was happening to me when I was driving on major highways, etc.. I would have to pull over and stop the vehicle because after certain amount of time it also would tell me oil pressure low to stop engine. I took it to the Chevy dealership to have it looked at. I got the runaround with trying to figure out exactly what the issue was. They kept telling me that it was something else I spent over $1600 in repairs due to them, telling me that they found the issue and corrected it. After about another week or two, The same issue happened, engine power reduced stop...

I will be driving at posted speed limits (typically 55 to 60 MPH) and while going up a hill, the engine loses power. I get a notice on my screen that states engine power reduced. Speed reduces to no more than 35 MPH. This can put others in danger if they are too close or if the roads are icy due to it being winter in Indiana. I put on my hazard lights, and I am able to pull off the side of the road, turn off the car for 5 minutes and restart it and have power back. But engine light remains on. Mechanics cannot find anything wrong. No warnings prior to the incident. In fact, the car loses power and then the message appears on screen. This has happened 7 times in the last 4 months.

Reduce Engine Power - vehicle decreased acceleration drastically while driving on the highway.

The contact owns a 2016 Chevrolet Malibu. The contact stated that while driving at an undisclosed speed, the "Reduced Power Engine" message displayed and the vehicle inadvertently decelerated. The brake pedal was firm while depressed and the vehicle failed to stop immediately. The vehicle was towed to an independent mechanic, who diagnosed that the vacuum pump needed to be replaced. The vehicle was then taken to the dealer, where it was determined that the vacuum pump deteriorated and went into the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 138,000.

I started smelling a strong smell of gas while operating the vehicle. Took to a dealership who diagnosed a turbocharger clamp and exhaust failure. From what I understand I am not the only one with a clamp/exhaust/seal problem. A friend of mine who owned a GM product had similar problems to the point her engine failed altogether. Please investigate!

A couple days ago I went to drive my car and it took a second to actually turn on and it was shaking way more than usual and pooped up with a message saying “engine power is reduced” I haven’t drove my car since because i tried and it was moving very slow, and i also didn’t wanna cause further issues. For some time now my car has been shaky. i have taken it in and balanced my tires because of this issue and nothing had helped. I am always scared to drive it because it has been so shaky but now that this message has popped up it’s even worse and it’s during my whole drive. Also every time i park it isn’t connecting and says “shift to park” even though it is shifted into park. i have to shake it and press some button to go all register...

I experienced a check engine light and a "reduced engine power" message in the middle of traffic in the stromy rain. I was driving 35 to 40 mph before vehicle slowed to almost a stop and when pressed gas pedal it excel slowly creeped to less than 30 MPH THANKFUL I wasn't rear-ended.Pulled into nearest Autozone part store and diagnostic scan showed the P2138 code. DC severity, sensor, and accelerator pedal position - see photos attached. Waited with engine off for approx over 30 minutes then started vehicle , engine lght off and proceeded to my destination excell with no issues.This has happened several times since purchase of vehicle began 2019. Throttle body repairs, ECM replacements and harness repairs later still reoccurring documented at dealships and repair shops. This is a serious and costly hazard.

Update to claim #11614644. Car was inspected by Auto Lenders in Lakewood, NJ. Vacuum pump failed and cam shaft has to be replaced, was told the engine **SHOULD* be salvageable. They won't know until they start taking it apart. Was told it will take 12 hrs for each part at $180 an hr. Damage is estimated at $4500. Car is currently under an extended warranty, we are waiting to hear if the warranty will cover the damage. My son still owes $9000 on the car, we bought it 2 yrs ago. Beyond angry that Chevy/GM has not recalled this car!!!

Vacuum pump failure. Brakes failed while driving the car, brakes became manual power but was able to pull over safely. There was no previous warning or error codes. Car is currently at a Mr. Tire facility. The manager ran diagnostic code - "reduce engine power" error and found the cause as the vacuum pump. Due to the time of the failure, late Saturday 9/14/24, the part cannot be ordered until Monday from the local Chevy dealership. The facility will not know if there is additional engine damage until the part is remove and inspected. There is known issues with vacuum pumps failing and a class action lawsuit currently in ligation.

The car will not turn off when placed in the park position. A warning comes on that states "shift to park" when the car is already in park. I have contacted Chevrolet twice and was notified that their are no open recalls on this. This is a very common and known problem with 2016-2019 Chevy malibu as well as Chevy Cruze model. Chevrolet is no help in this matter. I feel this is a large safety issue as you cannot turn the car off. PLEASE HELP!

The main head gasket fails on these vehicles causing oil to leak everywhere and on top of electrical wires. The lost of oil has caused the engine to reduce the engine speed randomly on the highway which had risk of accidents multiple times, by unable to move the vehicle off the road at a reasonable time. The oil sips land on top of electrical wires which creates the risk of fire.

Driving and the car does not shift correctly when speeding up onto the interstate and then engine light comes on and words engine power is reduced comes on. Called Chevrolet and can no longer drive vehicle.

Vehicle listed a warning "engine power is reduced" and check engine light came on. Vehicle was taken to local dealer shop to have issue resolved. Original thought from technician was the oil was low. Upon topping off the oil problem persisted. After having the engine tested it was determined to have a cracked piston.

while driving the engine lost power started idling rough and the MIL came on. The MIL was found to be cyl 1 misfire, mechanic tracked it down to a cracked piston. A KNOWN ISSUE WITH THIS MODEL YEAR AND ENGINE. the VIN does not show it as being included in any recall

Vehicle check Engine light on, showing "Reduced Engine Power." Vehicle still able to be driven, but will not accelerate with any proper pace or power. Cannot get above 3000 RPM without losing power, has put me in two dangerous situations in the last two days that almost made me lose my life. On highway, trying to accelerate to match traffic speeds, lose power and had to dive to the emergency lane to not get plowed by a truck. Today, was city driving, at a red light, could not accelerate and had to dive to a crawl the vehicle into a turn lane where I ended up sitting for about 10 minutes till the engine offered enough power to keep driving. By all information I can find online, it seems it is similar to the issues presented by others online and might tie into "Special Coverage N182188250 Loss of Continuity within...

The contact owns a 2016 Chevrolet Malibu. The contact stated while driving at an undisclosed speed, the vehicle independently engine seized and the check engine warning light illuminated. In addition, the contact stated that the battery would not stay charged. The vehicle was taken to an independent mechanic where it was diagnosed with a no-start dead battery. The vehicle was not repaired. The contact was informed of TSB 16-NA-209 in which the failure description was similar to that of the contact's vehicle. The contact was advised to take the vehicle to the dealer for repair. The dealer was contacted and made aware of the failure and the vehicle had a scheduled service appointment. The manufacturer was not made aware of the failure. The failure mileage was approximately 176,000.

While traveling at normal speed (55-60MPH) Engine Power Reduced message pops up and car will not accelerate until I pull over, turn it off, then back on after a period of time. Message is beginning to come up frequently. Occurred 3 times this morning on the way to work.

My car was started shaking really bad and the stabili trak sensor came on. My engine had to be replaced in February 2023. My car was at 66K miles. I rarely drove it. I worked from home for 3 years due to the pandemic. I purchased the car with about 12K miles. I was on my way home and my car just shut off. I could not get it to start at all. The stabili trak light came on. This was in January 2024 with 75K miles. The tow truck driver told me he had picked up multiple Chevrolets experiencing this same issue. It took the dealership almost two months to figure out that the crank sensor needed to be replaced.

I bought this car August 2013 and I have been constantly having issues with it I contacted the BBB they showed them a check off list of the problem I was having to quiet them I was having rear in issues that they claim they did a full exspection of the vehicle which isn't true they tried to give me excuses now the car shows it's in part but it's saying action is required the car isn't in parking made a video on my phone so they can't make a excuse this should be a recall because I have read reviews with people having the same problem not once but two times after the first repair and it's not fair to the consumer someone need to investigate the dealerships.I can't get my video to upload I do have a short video on my cell phone

The contact owns a 2016 Chevrolet Malibu. The contact stated that while driving at approximately 55 MPH, the vehicle began shaking violently and she observed a loud noise emanating from the engine compartment. The vehicle was stopped but the failure persisted. The vehicle was taken to an independent mechanic who stated that there was no oil in the vehicle, and several unknown codes appeared on the diagnostic machine. Oil was administered to the vehicle. The contact stated that two days later the failure persisted. The vehicle was taken to an independent mechanic where it was diagnosed that the blown head gasket needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 176,051.

Reduce engine power warning ‼️ losing power on highway and shift to park warning ‼️

Vehicle engine light reported codes P050F, FE8:engine, and FE9. It was determined the Brake Booster Vacuum Pump was leaking oil and was faulty. It has been replaced and brakes better. Engine light went off. The other diagnostic by my mechanic showed the Oil Control Intake and Exhaust Variable Valve Timing (VVT) Solenoid needed to be replaced too.

I am very upset right because I purchased this Chevy Malibu 2016 from Vroom. It was fine at first and then things start to go downhill. For starters my tire light came on first only a week after having the car, then the shift into was appearing on the dashboard as well as the engine light. Then my husband spent almost 2000 on the brakes because the car was making this horrible sound and I almost couldn't stop the car because the pedal was stuck and would not push down. Thank God no one was hurt. Then my car just shut off twice one day at a busy intersection, it went completely dead with my children in the car. This is a ongoing issue. Now I had a diagnostic test ran on my vehicle and it was said I needed a new motor only after having the car for only...

My car enters a reduced engine power mode causing my car to slow down during high speeds with a potential acciden…. the Malfunction Indicator Light (Check Engine Light) will illuminate, the ‘Engine Power is Reduced’ message will display. I have called GM and was told it wouldn't be covered, I have talked to the dealer and taken it in before but I can't afford to keep paying a $150 fee to have my car looked at. I have been having this issue since April

I was driving about 70mph on a highway trying to pass a semi-truck. As I signaled right blinker to merge back into the right lane, the speed reduced to 40mph without notice. I then seen a notification on the dashboard saying "Engine Power Reduced". The car would not accelerate fast enough to clear the truck therefore almost causing a collision of 2 semi-trucks and myself. I was forced to drive off road to help avoid the collision. My fiancé was in the passenger seat when this happened on 11/25/2023. He then began telling me this happened to him a few months prior but he didn't mention it because it resolved itself. This was actually the 3rd time it had happened in this car over the last 2 years. I spoke to the chevy dealership about it the first time I experienced this and they advised that it had not been...

Bulletin 19-NA-122 that General Motors posted about my specific car having future engine issues happened to my car right after their mile limitation. They said due to my miles being pass the number and although I’m with in the 10 year window they cannot do anything for my car. I was driving in the high way using cruise control then my car just randomly slowed down on the highway, my stabilitrack sign came on and my check engine sign started to blink and my engine started to shake my car. Very dangerous and I was not notified about these issues a single time I took my car to the dealership when it was within the time frame.

My 2016 Chevy Malibu that does not have many miles on it is shifting into, Reduced Engine Power Mode. When this comes on I cannot accelerate up to speeds and can only go about 25 MPH. It is dangerous that my car can go from highway speeds to this slow. I have had 0 issues before this started happening and other Malibus have been recalled for this same issue.

Engine losing power going highway speed acceleration will not work

Acceleration to the engine malfunction no power to engine going excessive speeds on interstate failure light appeared car shut off one stopped car turn right back on. I’ve reported this incident of the last two years to the dealership GMC to 2016 Chevy Malibu that has already had this instance back in 2019 and now has occurred at once again mileage since the last engine was replaced is 10,000 miles on the new engine

My 2016 Malibu is a piece of shit. Randomly, and this cannot be anticipated or reproduced, I will be driving and the car will say "engine power has been reduced". This is dangerous! It takes me from 70 mph on the highway to 15 mph almost immediately. I cannot speed up. It has almost caused at lease 5 accidents. It happens on the freeway, regular roads etc. and Chevrolet refuses to issue a recall to fix it. I can't take it into a dealership because it cannot be reduced and Chevrolet was EXTREMELY rude. They said you issue recalls and I need to contact you. The most recent date this happened was 9/25/2023 but it has happened many other times.

The engine only has 78K miles on it. I took it in because I received a notification that said stabilitrack. First I had a mechanic change the spark plugs, then I was told I had to take it in for a bigger issue with the engine. I was told it would cost $2500 just to break down the engine and diagnose it. Then I was quoted 11k on top of that to completely replace the engine. 78k miles and the engine needs replacing for more then the car is worth. The diagnosis was that I had a piston crack and the whole engine was ruined.

What component or system failed or malfunctioned, and is it available for inspection upon request? The engine oil pressure control circuit is stuck. How was your safety or the safety of others put at risk? I was driving when all of a sudden my car would not let me speed up to the speed limit and almost caused someone to rear end me. Has the problem been reproduced or confirmed by a dealer or independent service center? Dick Allen's in Meadville as well as AutoZone who read the code Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No warning until the light came on and the car slowed down. This is the 3rd time this has happened. Previously I was...