2018 Chevrolet Malibu
Problems, recalls and owner-reported issues
Engine is the leading concern among 698 owner complaints filed for this model year. This is the 15th highest complaint count among 26 Malibu model years with reports.
Of the 2018 reports, 23 involved a crash and 4 involved a fire. 17 people were injured.
What owners report most often
Recalls and investigations
Seat belts, critical fastenersAug 20, 2021
General Motors, LLC (GM) is recalling certain 2016-2021 Chevrolet Malibu and 2019-2021 Cadillac XT4 vehicles. The rear seat belt retractors may be improperly secured with loose or missing fasteners.
An improperly secured seat belt retractor may not function properly in a crash, increasing the risk of injury.
Dealers will inspect and tighten the rear seat belt retractors, as necessary, free of charge. Owner notification letters were mailed on September 17, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020 and Cadillac customer service at 1-800-458-8006. GM's number for this recall is N212333380.
Campaign 21V649000 on NHTSA.gov
Power train, automatic transmissionOct 29, 2020
General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse and GMC Terrain, 2018 Chevrolet Malibu, 2019-2020 Buick Encore, Buick Enclave, Cadillac XT4, Chevrolet Blazer and GMC Acadia, and 2020 Cadillac XT6 vehicles. The start/stop accumulator endcap may have missing bolts.
Missing bolts on the start-stop accumulator endcap could result in a transmission oil leak and may progress to a loss of propulsion, increasing the risk of a crash. A transmission fluid leak in the presence of an ignition source may increase the risk of fire.
GM will notify owners, and dealers will inspect the start-stop transmission accumulator and replace it if any bolts are missing, free of charge. The recall began December 15, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick Customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202313440.
Campaign 20V668000 on NHTSA.gov
Electrical system, softwareSep 6, 2019
General Motors LLC (GM) is recalling certain 2018 Chevrolet Malibu vehicles equipped with 1.5L turbo engines. An error in the Engine Control Module (ECM) software may result in the fuel injectors being disabled.
Disabled fuel injectors would prevent the engine from starting and may cause a stall, increasing the risk of a crash.
GM will notify owners, and dealers will reprogram the ECM software, free of charge. The recall began October 16, 2019. Owners may contact GM customer service at 1-800-630-2438. GM's number for this recall is N192221960.
Campaign 19V642000 on NHTSA.gov
Service brakes, hydraulic, foundation components, disc, caliperAug 30, 2018
General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Equinox, Impala, Cruze, Volt and Bolt EV vehicles, GMC Terrain vehicles, Buick Lacrosse and Regal vehicles, Cadillac XTS and XTS Professional vehicles and 2018 Chevrolet Malibu vehicles. The rear brake caliper pistons may have an insufficient coating causing gas pockets to form, potentially reducing rear brake performance.
A reduction of braking performance can increase the risk of a crash.
GM will notify owners, and dealers will bleed the vehicle's brake system, free of charge. The recall began October 11, 2018. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 18279.
Campaign 18V576000 on NHTSA.gov
Air bags, sensor, occupant classificationJun 14, 2018
General Motors LLC (GM) is recalling certain 2016-2018 Chevrolet Malibu vehicles. During servicing, a Passenger Presence System (PPS) may have been installed that was not correctly calibrated to the vehicle's seat type. As a result, the PPS may not properly identify an adult passenger from a child passenger in the front passenger seat, potentially causing the air bag to not deploy when it should, or causing the air bag to deploy when it shouldn't.
In the event of a crash, improper air bag deployment can increase the risk of injury.
GM will notify owners, and dealers will replace the front passenger PPS seat service kit, free of charge. The recall began August 7, 2018. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 18208.
Campaign 18V400000 on NHTSA.gov
Fuel system, gasoline, delivery, fuel pumpMay 31, 2018
General Motors LLC (GM) is recalling certain 2015-2018 GMC Canyon, 2016-2017 Buick Envision, 2016-2018 Chevrolet Colorado and Malibu, 2017-2018 GMC Acadia, 2018 Buick LaCrosse, Cadillac ATS, Chevrolet Equinox, and GMC Terrain vehicles. The high pressure fuel pump may detach from its mounting flange, possibly resulting in the pump damaging the high pressure fuel line.
A damaged fuel line can create a fuel leak, increasing the risk of a fire.
GM will notify owners, and dealers will replace the high pressure fuel pump, and high pressure fuel pipe, free of charge. The recall began July 2, 2018. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 18188.
Campaign 18V358000 on NHTSA.gov
Representative owner complaints: engine
284 reports, newest first. Show all
Electrical system, Vehicle speed control, Engine, May 2, 2024
Engine power reduced indicated on dash and engine light came on while i was driving
Service brakes, Engine, Apr 9, 2024
The contact owns a 2018 Chevrolet Malibu. The contact stated while operating the vehicle, the message "Engine Power Reduced" was displayed and the vehicle would not properly accelerate above 30 MPH. Additionally, while depressing the brake pedal, the vehicle failed to immediately stop, and the pedal was firm when depressed. The vehicle was later towed to the local dealer. The cause of the failure was unknown. The manufacturer was not yet notified of the failure. The failure mileage was 50,000.
Fuel system, Gasoline, Electrical system, Engine, Feb 29, 2024
The contact owns a 2018 Chevrolet Malibu. The contact stated while driving at approximately 70 MPH, the vehicle started losing motive power with an unknown engine warning light illuminated. The contact stated that the engine power was reduced. The contact depressed the accelerator pedal; however, the vehicle failed to respond. The contact stated that the vehicle decelerated to approximately 15 MPH and the vehicle stalled. The contact stated that the vehicle lost power steering and braking functionality. The contact was able to stop the vehicle. The contact attempted several times to restart the vehicle however, the vehicle was unable to be restarted. The contact stated there was an abnormally strong odor of gasoline in the cabin of the vehicle. The contact opened the hood, and the odor of gasoline was very strong. The contact looked underneath the vehicle and saw gasoline in a puddle underneath the vehicle. The contact stated that the vehicle was towed to the residence. The vehicle had not been taken to an independent mechanic or dealer. The vehicle was not diagnosed and was not repaired. The contact had not informed the manufacturer of the failure. The contact researched online and related the failure to NHTSA Campaign Number: 19V642000 (Electrical System, Fuel System, Gasoline, Engine). The failure mileage was approximately 50,000.
Electrical system, Vehicle speed control, Engine, Feb 18, 2024
Saturday morning this is now the 3rd time it's been fixed and safe to drive. Once by the dealership in Baltimore Towson area. Check engine light came on I ran diagnostic I bought at the store to get the codes come to find out class actions for wrongful death because company knew about it. As I also see hundreds of he same complaints here. My wife on [XXX] Baltimore MD at the merge. She went from 60mph to 35mph. Then the car shut off with zero control of steering. Once in neutral she slightly touch the brakes which let it start up. Thank God no one was killed we have 2 beautiful 6 n 7 yr old girls what would I tell them. This needs addressed it happens after the batt needs changed I know 4 other owners 1 had just got one that's what triggered his same codes problems. Im I've Googled it but not one person solves it. It's gotta do w the start stop system INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Engine, Jan 29, 2024
Engine Power Reduced Defect in Chevy Malibu Vehicles. Had the "engine power reduced" message show up countless times.
Engine, Jan 16, 2024
Check Engine Light constantly comes on . Pedal position sensor is faulty. engine power reduced pops up
Other or unspecified, Engine, Jan 10, 2024
While driving on highway, check engine light came on as well as message saying "Engine power reduced". Car immediately decelerated on the highway and brakes pedal became rock hard and unable to press.
Vehicle speed control, Engine, Dec 22, 2023
The contact owns a 2018 Chevrolet Malibu. The contact stated while driving approximately 65 MHP, the message "Engine Power Reduced" was displayed and the vehicle decelerated to 30 MPH. The contact stated that the speed would no longer exceed 30 MPH. The cause of the failure was not yet determined. The manufacturer was notified of the failure, but no assistance was offered. The local dealer was not contacted. The contact stated that the failure had also previously occurred but after taking the vehicle to the local dealer no cause of the failure was found. The failure mileage was 110,653.
Other or unspecified, Engine, Dec 21, 2023
Vehicle will not stay started will stop when ever even while driving. I haven’t driven the car in 8 months because it’s not safe.
Power train, Engine, Nov 25, 2023
Transmission Surge Accumulator System Performance. The car fails to accelerate once it comes to a complete stop, traffic lights, etc. The car will rev up to 5000 RPMs but will not reach 10 mph. This causes problems when driving and I was almost hit on several occasions (more than 8 times) on my drive home to be safe again. The car was taken to the dealership and was reported to have been fixed, after paying a $100 deductible, but only ran properly for one day. Again, I was almost hit 5 times while driving back home, after the repair was made. The check engine light came on after the car presented issues, as I was out running errands, the car was losing power and was not performing well. About 20 minutes after the initial issue, the check engine light came on. I took the car to Auto Zone where they were able to run the diagnostic that came back with the code, P171D Transmission Surge Accumulator System Performance. This took place twice in one week, with the dealership fixing the issue on Tuesday and it failing again on Saturday (after the car sat idle for 3 days, while I was on vacation).
Service brakes, Engine, Nov 16, 2023
Vacuum Booster Pump failed while driving on the highway with my girlfriend and her small child in the car and this common problem for this specific Chevrolet motor and endangered our lives significantly. Over 500 complaints on NHTSA website. No recalls to date. $4,000 damage. Filed official complaint and requested that Chevrolet cover the costs.
Steering, Vehicle speed control, Engine, Nov 16, 2023
The contact owns a 2018 Chevrolet Malibu. The contact stated that a "shift to park turn the vehicle off" message was displayed while the vehicle was in the park position. While driving at unknown speeds, the vehicle stalled. The steering wheel was tight. After slowing down, the driver depressed the start/stop button, and the vehicle shut off and restarted. The vehicle was randomly shut down. After waiting, the vehicle restarted. While depressing the brake pedal, there was an abnormal, unidentifiable noise detected, and the vehicle came to a sudden halt. While driving at 55 mph, the vehicle suddenly stopped, and she hit her head on the steering wheel but medical attention was not provided. The vehicle was pulsating while driving. There was a sound of water going through the vehicle. The vehicle was slow to accelerate and then moved violently. All the instrument warning lights were illuminated. The vehicle was taken to the local dealer, who was unable to duplicate the failure. The vehicle was not diagnosed or reported. The vehicle was taken to another dealer, Capital Chevrolet, at 9820 Capital Blvd., Wake Forest, NC 27587, where it was diagnosed that the vehicle was not safe to be on the road. The oil throttle body and vacuum pump needed to be replaced. The vehicle was not repaired. The contact stated that the failure was related to NHTSA Campaign Number: 20V668000 ( Power Train), and NHTSA Campaign Number: 19V642000 (Electrical System Fuel System, Gasoline, Engine). The manufacturer was not contacted. The failure mileage was approximately 50,000.
Other or unspecified, Service brakes, Engine, Oct 31, 2023
Service Stabilitrak warning will pop up on my dash. The car loses power. Push on the gas and it sputters. Had it serviced by GMC 2 years ago and now it is happening again. More frequent in colder weather. There are thousands of reddit posts about this same issue from other 2018 Chevy Malibu owners. GMC refuses to acknowledge it is a quality or performance issue on their end.
Engine, Oct 28, 2023
While driving, my car’s dash suddenly showed a warning message that state “engine power reduced”. I was driving around 45mph at the time of the incident.
Service brakes, Engine, Oct 27, 2023
I was driving the vehicle on a busy road and a message came up on the display above the steering column saying Engine Power Reduced. I went to brake and was unable to push the pedal in as it was extremely stiff. There were vehicles around me and I tried to use both feet and stand on the brakes and was able to get a little bit of movement but the car still didn't slow down. I had my significant other and brother-in-law in the car and we were all horrified we were going to get into an accident. I turned the hazard lights on and was able to steer to avoid hitting several vehicles and when traffic finally cleared I was able to get over and off the road into a gas station that was uphill and allowed us to slow down and finally stop because I put the vehicle in neutral tried the parking brake which got us to a complete stop and shut the vehicle off. There had been no previous issues with the brakes or messages such as the one that came up right before this issue occurred. The vehicle had to be towed and the repair shop told me the cam driven vacuum pump failed which caused the brake booster to not function. When this failure occurred, it damaged the intake and exhaust camshafts, crankshaft, and several other components. The cooling system and oil to be flushed out as I was told there was metal debris from the damaged parts caused by the vacuum pump failure in the fluids which had been all completely flushed and changed including cooling system, transmission fluid, and oil change The total cost of repairs as a result of the vacuum pump failure setting off a Domino effect of damage was $3536.40.
Engine, Oct 24, 2023
Engine power reduced
Steering, Electrical system, Engine, Aug 22, 2023
My check engine light will come on, a message will pop up on the screen saying, "steering assist reduced drive with care." When i come to a stop and my car goes into auto stop the car will completely shut down. This can be in the middle of the street or during traffic. It will take my car awhile to start back up. I was told it is a sensor that is going bad consistently, this has happened to me 3 times. This is a known issue with a lot of Chevy Malibu.
Electrical system, Service brakes, Engine, Aug 8, 2023
I WAS DRIVING ON THE INTERSTATE AT 75 MPH AND I WENT TO HIT THE BRAKES AND THEY DIDNT WORK I HAD TO TAKE MY FEET OFF THE GAS AND LET IT STOP ON ITS ON AND IT WAS SCARY. I GLAD TO BE ALIVE. AND WHEN I PUT THE CAR IN PARK IT STATED THE I NEEDED TO SHIFT TO PARK AND I COULDNT CUT THE CAR OFF SO AFTER CALLING SOMEONE TO COME GET ME FROM OFF OF THE SIDE OF THE RIDE. I HAD TO KEEP PUTTING THE GEAR IN PARK FOR IT TO GO IN PARK ANF THE MESSAGE WENT AWAY BUT IT KEEPS COMING ON.
Electrical system, Engine, Aug 5, 2023
The auto start stop function malfunctioning at a red light, causing vehicle to turn off completely. Vehicle will turn on once the brake is released. The transmission is slipping as well switching from first gear to second gear and causing a delay in departure.
Electrical system, Service brakes, Engine, Jul 3, 2023
While driving on the highway my dashboard displayed a warning of “reduced power steering “, engine light came off and on, loss of speed , and “stabilitracking” light came on. Brakes also vibrated badly as if they were unable to hold a grip. I was unable to accelerate and was really in danger. The car was taken immediately to the dealership where they replaced the battery and told me it was repaired. On my return from the airport the next morning at 4:30 the same lights and warnings displayed on the dash once again and I had it towed immediately to the dealership. We are now 3 days in and I have gotten no explanation as to what is going on with my vehicle.
Power train, Electrical system, Engine, Jun 28, 2023
SHIFT TO PARK BUT VEHICLE US IN PARK ENGINE CONTROL MODULE, CAUSING ENGIBE POWER TO BE DROPPED REDUCED
Suspension, Power train, Engine, May 27, 2023
I have a 2018 Malibu with a very long list of major issues. The Engine loses power constantly along with a “Engine Reduced Power” warning and check engine light. I get a constant “shift to park” message even after placed in park. All the steering wheel buttons/controls do not work. With the exception of the cruise control. Car almost red lines after the power message displays when you try to increase the speed of the vehicle. The back axle/suspension/hubs make a very loud popping sound when I back up or drive forward. Both back wheel assemblies make a very loud wobble noise when driving. Almost like the assemble is going bad. The Auto Stop/Start causes a lot of issues. It causes the car to jerk horribly and that’s when you hear the popping in the back axles the most. Idk if there is an option to turn this off in this model. But, if there is I can’t access the message center because the steering wheel controls/buttons don’t work. Also upon restart the car runs extremely rough and tries to die. The car has really bad powertrain issues. The car not only loses almost all power….. but, also acts like the transmission is slipping when taking off from a dead stop. Causing it to jerk really bad when the transmission actually catches. The brake system also seems like it has a lot of issues. Here recently the brakes seem like they don’t want to stop the car and that leads to pressing the brake pedal down harder resulting in the brake finally stopping the car in almost a dead stop. This could cause a rear end collision or a collision after your designated stopping point. Every time it rains my trunk gets soaked with water leading to a horrible mildew smell and damaged property in the trunk. Also, the steering wheel will start wobbling uncontrollably when driving down the road and then just stops. It causes a violent shake in the front end until it stops. I’m sure I missed a few things just because of how long the list is. I’m hoping for a solution to these problems.
Electrical system, Vehicle speed control, Engine, May 20, 2023
Purchase car in December 2018, had 3 engine replacement. I am currently in the 3 engine replacement. And still experiencing the same issue - check engine light permanently on for 2 months now. Issues A whistling sound from an opening vent in the hood since last engine replaced. Call stalls, reduces speed and jerk when trying to accelerate . Have reached out to Reed lallier Chevrolet they making it seems that normal and ok. I am scared to drive and cause an accident because the car stalls before picking up. When you put the car in park, the car still not registering at park it is still moving you have to sit and clear the dash board (shift to park, even thou it is in park). Chevrolet only gave 1 engine replacement and $100 gift card. Every other expense is on me, when I still have to pay for the lemon. Unable to locate most recent engine replacement sheet. But can retrieve from dealership if needed. This car is full service and maintained in the allocated time frame reed lallier has the file of needs be.
Electrical system, Service brakes, Engine, Mar 9, 2023
Cam-driven Brake Booster Vacuum failure without warning. My engine died, my brake pedal and steering wheel stiffened, while in moderate traffic. I had use excessive brake force to slow my vehicle to a stop. Currently have 78,012 miles as it is sitting in the repairs shop. This is the first time it has happened, but I worry it may happen again because upon further research, it is a very common part failure.
Engine, Mar 8, 2023
The contact owns a 2018 Chevrolet Malibu. The contact stated while driving 65-70 MPH and overtaking another vehicle, the vehicle decelerated to 45 MPH unintendedly, with the "Engine Power Reduced" message displayed. The contact exited the highway and continued driving. The contact stated that the failure had been reoccurring increasingly and also occurred while driving 25 MPH. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed nor repaired. The failure mileage was approximately 58,000.