What 786 owners told NHTSA about the 2016 Chevrolet Impala Limited

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!

NHTSA ODI 11617854

When putting it in park and shutting the car down it says on dash to “shift to park.” There are other 2016 malibu that have this recall but for some reason not mine.

NHTSA ODI 11616873

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 that it is shifted into park and can shut my vehicle off. I have read every where that this issue has happened to so many 2016/2017 chevy Malibu’s. I have read the dangers and i do not feel safe driving my car like this. I also didn’t have my car when there was a recall on this exact part before. and i’m guessing the dealership who had it before me did not fix it, causing the problems to worsen other parts of my car. I can’t drive this car due to the safety and i believe it should be a recalled. I am not totally sure what is doing it but as of all the other people online, they said it has to do the gas pedal (2k replacement) and fuel pumps and also could have burned wires which my car also has. thank you.

NHTSA ODI 11616515

The contact owns a 2016 Chevrolet Malibu. The contact stated that the shift to park message was displayed while parking the vehicle. There were no warning lights illuminated. The contact called the local dealer and was informed that there were no open recalls on the vehicle. The contact stated that an appointment was scheduled. The vehicle was not diagnosed or repaired. The contact called another local dealer, Reedman Toll Chevrolet (1700 Lincoln Hwy., Langhorne, PA 19047), but the vehicle was not diagnosed or repaired. The manufacturer was contacted and informed that there was no recall coverage on the vehicle for the failure. The failure mileage was approximately 120,000.

NHTSA ODI 11615957

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.

NHTSA ODI 11615368

The contact owns a 2016 Chevrolet Malibu. The contact stated while the vehicle was parked and attempting to fasten the seat belt, the seat belt failed to retract. The failure occurred with the driver’s and passenger’s side front seat belts. The vehicle was taken to a dealer where it was diagnosed that the retracting mechanism had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was unknown.

NHTSA ODI 11615042

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!!!

NHTSA ODI 11615111

I am having to replace the VACUUM PUMP for the second time. Each time the pump breaks it spreads contaminants inside the camshaft compartment causing further issues. This is a common problem according to the many complaints I've seen on auto sites. This should be a recall.

NHTSA ODI 11614555

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.

NHTSA ODI 11614644

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!

NHTSA ODI 11608824

The electrical chip in my EBCM has a malfunction and the brakes will grab and grind at random times. Also at the time electronic stability control will mess up increasing the risk of a crash. Other malibu vehicles with the same year have had a recall on these parts. Mine however was not included but has the same malfunctioning part.

NHTSA ODI 11607420

The contact owns a 2016 Chevrolet Malibu. The contact stated that while the vehicle was in park(P) on several occasions, the message "Shift to Park" was displayed. The contact stated that upon moving the gear shifter from reverse(R) to park(P) several times within five minutes, the vehicle responded as needed. The vehicle was taken to the dealer, where it was diagnosed that the gear shifter and the jumper harness had failed and needed to be replaced. The vehicle was repaired; however, the failure reoccurred. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 38,023

NHTSA ODI 11606742

Brake vacuum booster failed resulting in the brakes failing.

NHTSA ODI 11606119

“Shift to park” intermittently indicated when vehicle is in park. Power will not shut off while indicated. Was repaired twice but has returned

NHTSA ODI 11604866

Brake Booster vacuum pump failed and pieces broke off in the engine.. it failed in the middle of driving with my [XXX] daughter.. the brakes padel was hard and was hard to stop.. could have caused a real bad accident even caused death if happened while driving.. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11604678

Brake booster vacuum pump failed and pieces of the pump broke off and in the engine..

NHTSA ODI 11603347

My airbag light comes on intermittently and will show a passenger is not in my front seat when they are. I took my car to the dealer and they got a current and past code B0074 for the passenger presence module. There was a recall (18208) for this on certain 2016 Malibus but my vin was not included.

NHTSA ODI 11598038

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.

NHTSA ODI 11598070

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.

NHTSA ODI 11595685

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.

NHTSA ODI 11594556

On may 23,2024 I was on a very busy highway going 66. All of a sudden my 2016 malibu lt aburtely slowed to 27 miles an hour and two warnings lights came on 1 -engine power is reduced 2 - speed reduced to 27 I barely avoided getting hit by two semi trucks, as well as a car. The car is available for inspection on request. An independent service person confirmed it was indeed a defective electron control and acceleration peddle position sensor. How very irresponsible of you not to put out a recall on the 2016-2018 models knowing very well of the many class action law suits that have arrived from this issue. I probably can guarantee none of you own a Malibu. How very incredious it is that you put people lives in danger knowing that there was issues with the problem. Unbelievable. I almost got killed because of the lack of responsibility because you dint make a recall.

NHTSA ODI 11590824

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

NHTSA ODI 11590515

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

NHTSA ODI 11590296

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 Accelerator Pedal Position Sensor Circuit" that I found here: [XXX] , this issue has been going for about 3 weeks to a month and is only getting worse. I did stop at McCarthy Chevrolet of Overland Park to have codes run about on [XXX], the codes showing do not show in the above link...codes: U1502, U0422, P06DE, C0760...those all present on the paper as "Current." I have not had it diagnosed yet, planning to, service is just so expensive. I have had the car in my car for 1 year and 1 month, purchased from MAX Motors in Harrisonville, Mo. Reporting here as I also saw online that others are facing the same symptoms, and that there is a suit that might be addressing these issues: [XXX] Every time the car is turned on, the warning mentioned above shows. See picture attached. Does not matter what type of driving or set "speed limit" issues show. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11590465

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.

NHTSA ODI 11590140