There are 50 owner-reported speed control & cruise complaints for the 2016 Chevrolet Malibuin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
UNKNOWN While I'm driving my car will lose power and go into reduced engine power mode and slows me down to a crawl. I've almost been hit in the back many times for to this. The coffee is P2138
Check engine light comes on and dash says reduced engine power
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.
Out of nowhere, a notification pops up and it says “engine speed reduced” and all of a sudden you can feel the car losing speed. Took the vehicle to the dealership multiple times and either they always say it’s a fuel injection problem or they have no idea what’s causing it but when they perform that service on the vehicle, it still happens. Dealership even told me once that my car computer system needed to be updated and once updated I wouldn’t have the issue and I still have the issue. Each time the engine speed is reduced, a notification pops up that the StabiliTrak needs to be serviced. My safety and life is at risk because I’m going 65 mph down the interstate and all of sudden my engine speed is reduced like I’m not in the middle of traffic with cars going at speeds between 60-75 mph. I almost got ran over by an 18 wheeler because of the engine speed reduction. I had to swerve hard to the side of the road and risk flipping or crashing to get off the road so I wouldn’t be hit
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.
Our 2016 Chevy Malibu Hybrid intermittently began alerting of "Reduced Engine Power" and the accelerator would not allow the vehicle to accelerate. This happened twice, once on a busy highway that caused rapid deceleration of the vehicle. We brought the vehicle to the mechanic and there were a bunch of codes related to the accelerator position sensor. With parts and labor $415 to fix. Upon researching, there are a bunch of reports on car forums related to this. I believe there have been previous reports to the NHTSA. This problem needs to be fixed and a recall issued to have Chevy replace the Accelerator Position Sensor before someone gets hurt or killed. Once I pick up the vehicle, I will upload the invoice and see if I can get specific code numbers.
While driving at a fast pace a hazard message pops up on dash that states engine power reduced and the car goes slow unable to accelerate past 20 mph. It doesn’t happen all the time but it’s been happening quite frequently and it’s dangerous. I’m assuming there has something to do with the speed and or fuel function. The vehicle has not been inspected. I am willing to bring it for inspection if needed. I feel like this is a malfunction and I’m requesting this to be fixed.
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 made a safety recall at that time yet, but the technician who helped me said his son experienced the same thing and it was becoming quite common. It still has not been recalled but there is currently a class action lawsuit because of this. I feel this is very dangerous and what I considered to be reliable transportation, is no longer the case for my family after this experience. This needs to be recalled immediately before people lose lives. Especially since the parts were Manufactured incorrectly and Chevrolet had knowledge prior to releasing 2016-2018 vehicles.
When driving the car and when stopping at either a stop sign or stop light, turning a corner the car will lose power and will not go for at least 10-15 seconds. when letting the brakes go and pressing the gas pedal the car does not move, pressing all the way on the gas pedal the car will take about 10-15 seconds before moving. It’s like the engine lose power and the car will not accelerate.
Lights that alert inside the vehicle at random times but more often in the last few months are: stability trek, power steering reduced and check engine. Acceleration decreased/reduced after being idle. This prompts serious danger for myself and children when there is no power being given to the car when sitting in traffic. Multiple mechanics have diagnosed the issue. Dealership gives me the run around and isn't specific with detail if check light engine goes off.
Car loses speed from 60mph to 15mph while driving. Engine Reduce Power light comes on after the fact. This is very dangerous when driving on a busy highway/interstate.
Code 2138 accelerator sensor popped up yesterday. After researching, I found out this is a common concern with Chevrolet Malibus for 2016. I'm sure you are well aware of this by now so I want to know what my options are at this point. Thank you.
Had car looked and i was told that the break box is defective
The low oil pressure - cut engine off notification appeared on the speedometer & as i was getting on the freeway the car literally cut off. All the electrical worked but power to the engine & everything stopped completely.
When I accelerate, it hesitates to pick up speed. Once I made it to 75mph, a warning message came on that said engine power reduced and the check engine light came on. I looked up the issue and saw that several people with the same car were having the same issues. I added a gas treatment like they suggested but the light is still on. I have not been to a dealership or mechanic shop yet due to not having the money. But if this is a common problem then Chevrolet needs to pay for repairs. If my car fails while I’m driving, I could cause an accident.I have had the throttle body cleaned before and the wheel sensors but I am still having issues.
Driving along and Reduced Engine Power warning message came on said can not go above 20 mph but yet car still could be accelerated above 20mph. Pulled over when could. Stopped car and turned it off and on. message gone but engine warning light still on. OBD2 stated P2122 error. Upon reviewing internet there are class action lawsuits going on because can create a very dangerous scenario if car suddenly stops in the middle of the highway.
Three times now I have had the warning “engine reduced power” pop up on my panel all times that I drive to my military base for work. Thankfully I haven’t been involved in an accident yet, my highway speed has went from 60mph to 35-40mph due to this issue. I was told I needed to purchase another pedal because of it not responding to the engine but after a second opinion I was told there was something wrong with the computer itself. That there’s faulty wiring which I don’t have the funds to cover because how much it would have cost. I also don’t have the funds to drop on another vehicle so at this point I’m driving a human boobie trap not only for myself but for other drivers around me. I pray no harm is done to anyone else who also owns this vehicle and having the same issues.
Engine power reduced, reduced power to the vehicle regardless of speed.
While driving several times I had the problem where the car out of nowhere slows down and the message comes on engine reduce power, I have been on the highway with my family and out had to pull over turn my car on and off several times for it to come off and be able to drive my care pass 20 miles per hr. This is very dangerous because it happens suddenly and cars are going by fast I almost got into an accident and was rear-ended on the highway. There needs to be a recall on his engine this is ridiculous that GMC/Chevrolet keeps getting away with this until someone is seriously injured or killed because of this failure!
I was driving to work this morning at 50 miles per hr then suddenly my car reduced the speed and the motor light turns on it showed me reduced engine power sign and the motor light turns on
Showing 1–20 of 50 complaints
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.
Data synced from NHTSA on Apr 26, 2026