Problems · by component

2016 Chevrolet Impala vehicle speed control problems

149 owner complaints to NHTSA about the 2016 Chevrolet Impala cite vehicle speed control, 17% of all 890 complaints for this model year.

Complaints
149
17% of all complaints
Crashes
2
Reported by owners
Fires
0
Reported by owners
Injuries
2
Reported by owners
01 —Owner reports

What owners say about the vehicle speed control

Verbatim from NHTSA complaints, newest first
“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.”
Owner complaint to NHTSAFiled Jun 9, 2025Engine, Fuel system, gasoline, Vehicle speed controlODI 11665802
“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.”
Owner complaint to NHTSAFiled Feb 21, 2025Vehicle speed control, Unknown or other, EngineODI 11644103
“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”
Owner complaint to NHTSAFiled Feb 9, 2025Power train, Vehicle speed control, EngineODI 11641570
“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.”
Owner complaint to NHTSAFiled May 26, 2024Power train, Electrical system, Vehicle speed controlODI 11590824
“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”
Owner complaint to NHTSAFiled May 23, 2024Vehicle speed controlODI 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…”
Owner complaint to NHTSAFiled May 23, 2024Power train, Vehicle speed control, EngineODI 11590465

Showing 6 of 149 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026NHTSA vehicle page

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.