10.0

really awful
Crashes / Fires:
2 / 0
Injuries / Deaths:
2 / 0
Average Mileage:
29,019 miles

About These NHTSA Complaints:

The NHTSA is the US gov't agency tasked with vehicle safety. Complaints can be spread across multiple & redundant categories, & are not organized by problem. See the Back button — blue bar at the very top of the page — to explore more.

Get notified about new defects, investigations, recalls & lawsuits for the 2018 Chevrolet Malibu:

Unsubscribe any time. We don't sell/share your email.

Get free help with your lemon!
close ad

« Read the previous 20 complaints

problem #56

Apr 022021

Malibu

  • 60,100 miles
The car us under 60,000 miles three years old and already breaking down. The air flow sensor out of self-test range, turbocharge engine underboost problems and mass air flow sensor performance is also problematic, making the car stop instantly and sporadically creating a high imminent danger of crashing and serious injuries. Luckily the car behind me was far enough to stop before rear-ending me. Had it been a semi-truck I don't think I would have been so lucky. These issues need to be immediately recalled and corrected!!!

- Riverside, CA, USA

problem #55

Mar 222021

Malibu

  • 51,000 miles
I turned on my car and it said 'reduced engine power' on the screen and I could only accelerate up to 35mph. I was going up hill it felt like my car was barely moving. Turns felt much slower going uphill when driving in residential areas.

- Los Angeles, CA, USA

problem #54

Mar 202021

Malibu

  • 15,000 miles
While driving engine power reduced message comes on and speed is cut to below 35 mph.

- Frederick, CO, USA

problem #53

Feb 242021

Malibu

  • 45,000 miles
While driving the error message " power reduced" and will only do about 30 mph. I have looked on line and at least a couple of law firms have clients for the lemon Malibu 2018 model. First time this occured, I was going up a hill with a truck behind meand nearly rear ended me.

- Clarksville, TN, USA

problem #52

Feb 192021

Malibu

  • 65,000 miles
I was driving at approximately 55mph on a highway when the vehicle gave a warning of 'engine power is reduced'. my car quickly dropped to 20mph and I was unable accelerate. This happened while there was another vehicle behind me and I was scared I was going to be rear ended. I put my hazard lights on and parked my vehicle. I shut the vehicle off and turned it back on which allowed me to operate the vehicle again but only at a capacity of 40mph. I had the vehicle repaired later that day it needed something with an electronic throttle control and pedal sensor replaced. I also learned that this is an issue that GM is well aware of and feel that they need to recall vehicles affected by this issue. There's no reason a vehicle should be dropping to 20 mph unexpectedly on a highway.

- Ottawa, IL, USA

problem #51

Feb 162021

Malibu

  • 51,123 miles
While driving my engine and traction light came on and a sensor popped up that read 'engine power is reduced'. I was driving down the highway and my speed was reduced. I can't and could not speed up.

- Edgewood, MD, USA

problem #50

Feb 152021

Malibu

  • 69,387 miles
After pulling out of a convenient store, onto a main road for about a half a mile my car immediately lost speed and a display appeared in my dash engine power reduced, check engine light and traction control light appeared. I couldn't drive no more than 20 miles per hour.. scary moment, so glad nothing was coming behind me. Car in shop! this need to be fix it's a many people having the same problem with this year kind of car somebody is going to get killed fix the problem for free GMC

- Bumpass, VA, USA

problem #49

Feb 112021

Malibu

  • 52,224 miles
While driving 65 mph car issued warning reduced engine power and check engine light popped on. Car then would not drive faster than 30 mph. Very sudden and with no previous warning this happened. Took to repair shop and after diagnostic was told acceleration pedal sensor was bad. This is not a covered repair and cost $800. This sudden reduction of power is very dangerous and a safety hazard to me and other cars on the road

- Hemet, CA, USA

problem #48

Feb 012021

Malibu

  • 51,000 miles
Car died in the middle of a busy intersection and wouldn't restart for approximately 2 minutes. Check engine light came on and reduced engine power on dash cluster was visible when it restarted. Dealership placed new battery & it went away for about a week then returned while driving in the 45 mph range, reduced engine power, then slow acceleration from a stop sign. Seems there have been multiple class action lawsuits for this issue with no recall in place at this time.

- Shelbyville, TN, USA

problem #47

Feb 022021

Malibu

  • 64,000 miles
I started to accelerate and the check engine light came on and reduced engine power was on my information display and my car would not go over 30 mph. Just happened out of the blue. I have approximately 64,000 miles on my Malibu. This happened on a city street and not in heavy traffic, but could have been very dangerous, if I was on a highway. Then after I limped the car home I turned it off and turned it back on and it seemed normal, but check engine light is still on. I am getting rid of this car has had 5 recalls of various problems so far. On one occasion the dealership had my car for 2 weeks...trying to fix a problem with the accelerator.

- Colfax, IN, USA

problem #46

Feb 012021

Malibu

  • 59,690 miles
On January 11 2021 while driving my 2018 Chevy Malibu to work I received a check engine warning on my dash, my message stating "reduced engine power" came on and my car suddenly and significantly reduced speed from 50 to 20mph. I was almost hit from behind by another motorist and had to manuever my car to the side of the road. I turned the car off, reestarted it and was able to continue driving. The check engine light remained on. I called the Chevy dealer and brought it in for service the next morning. I was told it was a sensor issue and it was covered under warranty. I received the car back on January 13th 2020.today, February 1st 2020 while driving to work my car experienced the same problem. I was able to avoid being hit again and stopped on the side of the road. My car is now back at the Chevy dealership. After expecting the issue was fixed and wouldnt happen again, I am extremely fearful for my safety (and those around me) in this car. I am a working mother and need to rely on my car to get my family to work and school.

- Dacula, GA, USA

problem #45

Jan 312021

Malibu

  • 80,000 miles
When I drive I'm losing engine power where my speed is reduced significantly. This is very dangerous. I've looked up this issue and there is a recall on Malibu's 2016-2018. I haven't got a recall on my car yet but this defect in these cars are ridiculous. Someone needs to get in touch with me asap about this defect. This is very serious and dangerous on the roads. My speed is reduced while I'm driving.

- Ellenwood, GA, USA

problem #44

Jan 182021

Malibu

  • miles
While in motion the engine power is reduced then the car slowed to a speed of 20 mph. Upon starting M vehicle a week a later the engine reduction warning came on again. The throttle body was replaced now I'm being told it's the accelerator pedal position sensor. Why should I have to pay for this.

- Chicago, IL, USA

problem #43

Jan 262021

Malibu

  • 61,500 miles
I was driving at highway speed when suddenly car decelerated to 20mph. The check engine light warning popped up along with a engine power reduced message. I was unable to accelerate at normal highway speeds even after turning off and restarting car.

- Stockton, CA, USA

problem #42

Dec 222020

Malibu

  • 93,000 miles
Check engine light came on and my speed was instantly reduced as I was driving. Sometimes it goes off after turning off the ignition but I could be on the highway or city streets and it will occur, causing a sudden slower speed.

- Weatherford, TX, USA

problem #41

Jan 162021

Malibu

  • 76,000 miles
I was driving on a highway going about 50 mph and I started to accelerate and as I hit 55 mph I got an error message reading, 'engine power reduced' and the ABS light and engine light both lit up. I also could not accelerate any longer. I pulled over immediately turned off the car and waited about 3 minutes and turned the car back on, I did not get a message however the check engine light still was lit but not the ABS light. I drove to an autozone got he code read and it was P2138. I looked up online and it seems as if thousands also have this problem with 2016-2018 Malibu's and Cruze. I'm also aware GM has had a lawsuit against them over this.

- Porterville, CA, USA

problem #40

Jan 112021

Malibu

  • 50,000 miles
Check engine light, tracking light, steering wheel locks up, low engine and can't exceed 45 ~ 50 mph all happens when in motion

- Manchester, NH, USA

problem #39

Dec 302020

Malibu

  • miles
While going highway speeds on my 2018 Malibu, I received a notification on my dash that said my engine was losing power. After clearing the notification, my car dropped in mph and I couldn't go faster than 60mph. After a minute or two after that, my mph dropped again and I couldn't go faster than 25 mph while my rpms were spiking at 4000. I took it to a mechanic who said the acceleration sensor is bad and I had to replace my accelerator and was forewarned that this is is going to happen again because it's a factory defect. I know I'm not the only one with this problem given there's a class action lawsuit already out there. But I wanted to add to the masses so Chevy is forced to fix this issue before people get seriously hurt.

- San Diego, CA, USA

problem #38

Dec 202020

Malibu

  • 55,000 miles
So many issues, car currently not starting. Codes were for brake booster and maf sensors, replaced both. Still won't start. Open recall emc, called dealership, they stated recall is free but since it won't start I have to pay 125 so they can hook it to computer. Shift to gear happens weekly, car will be in park. Stabiltrack came on a few times, but goes away. It tells me icy conditions on evan warm days, display will go black bu usually randomly comes on. The worst is the reduced engine mode. There is no rhyme or reason. I have been on the street doing about 35 mph and it does it also on highway at high speeds with 4 kids in the car, terrifying and dangerous. I am sure I'm forgetting things I have just come to not feel safe or comfortable driving this car, local dealership is no help. Took a picture of one of the first time it happened but that was 20000 miles ago, haprns randomly and almost in clusters. I can go a month or 2 with nothing and then it's 2-4 times a day for a few days or weeks, and then stops.

- Indianapolis, IN, USA

problem #37

Jan 032021

Malibu

  • 30,000 miles
Reduce power message appeared while in traffic reducing speed dramatically. Was not able to go more than 13 mph in a 50mph zone.

- Kalamazoo, MI, USA

Read the next 20 complaints »