I recently purchased this car used at a dealership. Before taking possession of the vehicle, the dealership tried to fix all problems associated with the check engine light being on. I was informed the vehicle will not pass inspection and the check engine light was still on due to a rocker arm oil control valve needing to be replaced. The car is still at the dealership waiting for a part that's on backorder and the part needed is GM #12633613 rocker arm oil control valve. After doing some research myself, I discovered this part fails commonly on my vehicle make, model, and year as well as 2014-2015 Chevy Malibu produced with the same engine. GM nor any aftermarket companies have this part in stock. I've contacted GM and was only told they don't know when they will have this part available. However, a few others with the same issue have been told by GM that this part is discontinued. There are people waiting months for this to be fixed and GM seems not to wanting to provide a solution. I would get another vehicle but then I would have to spend hundreds of dollars for the loaner car I'm currently driving from the dealership. This is GM's problem and they should be held responsible.

- Columbia, MD, USA

Faulty rocker arm oil control valve, code P2646. GM refuses to recall though it's known issue. GM does not have part nor are they producing it, but there's numerous complaints online and this is a major safety issue. How am I supposed to fix it and make my car safe if they won't make the part? either they recall it or they pay for fix at dealership. I've had two separate mechanics verify this issue and can provide documentation if asked. If I need to hire lawyer for class-action suit I can. There is already a petition on change.org, https://www.change.org/P/general-motors-make-GM-issue-A-recall-for-faulty-rocker-arm-oil-control-valve-in-2014-and-2015-Chevy-Impala-S-and-Malibu-S, with over 500 signatures.

- New Brighton, MN, USA

My wife was dropping our kids off at school and own her way back home the car started smoking. She was able to pull into a walmart. I got the car towed to a elite auto repair shop in cypress, tx. I was told that my car needed a engine variable valve timing oil control valve but they had to order the part. This happened in November 2019 and it's now February 2020 and the part still hasn't come in. While looking for the part myself I found that many people are dealing with the same issue. Because this was my only means of transportation I'm now forced to rent cars until I can get my car fixed and I have absolutely no idea when I'm going to get my car back.

- Katy, TX, USA

Oil control solenoid valve failure causing loss of power, instability at all speeds, and surging of engine. GM does not have any parts to repair this item and does not have a eta on when they will get them, there are no aftermarket options availible either due to the rate of failure. GM part# 12633613

- Perry, FL, USA

The contact owns a 2014 Chevrolet Impala. The contact stated that at 81,000 miles, the catalytic converter fractured and was replaced at patriot Chevrolet Buick GMC dealer, (4401 fort campbell blvd, hopkinsville, ky 42240, (270) 886-1207) however, the failure recurred. The contact stated that while driving there was a loud noised coming from the motor and exhaust fumes entered into the cabin of the vehicle. The contact stated that her husband noticed the catalytic converter was fractured. The same dealer was contacted and the vehicle was taken to the same dealer. The contact was informed that the vehicle was no longer under warranty. The vehicle was not repaired. The manufacturer was made aware of the failure. The contact was then referred to a GMC dealer for a diagnostic test. A case was filed by the manufacturer. The vehicle was taken the an independent mechanic and the vehicle was repaired. The failure mileage was 121,000.

- Crofton, KY, USA

The check engine light in the vehicle came on and the vehicle began to lose power and then regain power while accelerating and also while still in motion even while not currently accelerating. The problem was diagnosed by the Chevy dealership and it was determined that a rocker arm needed to be replaced. The part (#12633613) is not available and there is no estimated time per GM when it will be available again. My vehicle has not been safe to drive and sitting at the dealership since October 15th 2019, it is currently January 8th 2020. This part is an issue for all 2014 and 2015 Impala and Malibu vehicles with the engine type in the 2014 Impala ls. The dealership has referred to the GM part as being defective yet GM has not issued a recall. GM refuses to provide any information regarding the part and will not even confirm if it will ever be produced again. This issue is effecting thousands of vehicles and GM's failure to address this issue is leaving the owners of the affected vehicles driving unsafe vehicles. GM needs to issue a recall or manufacture more of the part if it is simply a production issue (which they will not confirm or deny).

- Indianapolis, IN, USA

I was driving in highway traffic when the car's engine power shut off, couldn't restart for several attempts. Called 911 as a disabled vehicle in center of highway. Stabilitytrak and reduced engine power warning came on as well as check engine light. Brought to dealer, was told manifold bolts were loose and battery needed replacement. Paid dealer $663. The very next morning same thing happened again 3 times before I got to the dealer. After researching I see this is a common problem that GM is not addressing. This is a dangerous situation when engine shuts down on the middle of 4 lane highway! is someone going to have to be killed before GM recalls throttle body/ accelerator problem?

- Plymouth, MA, USA

The contact owns a 2014 Chevrolet Impala. While driving approximately 30 to 35 mph, the vehicle stalled without warning. The contact was able to move onto a side street and restarted the engine. The contact took the vehicle to an unknown dealer where several failures were located. The dealer stated that the vehicle lost communication with the instrument panel and the following codes appeared: B101D electronic control, un150F linbus15, B1325 control module power circuit, U0028 most bus, U0140 lost body control, 0184 lost communication HVAC control, U15E1linbus1 lost communication with device, and AU2098 most capital communication enable circuit. The vehicle was not repaired. The manufacturer was not contacted. The vehicle was not repaired. The approximate failure mileage was 5,800.

- Arlington, TX, USA

The contact owns a 2014 Chevrolet Impala. While driving various speeds, the vehicle suddenly decelerated and the vehicle would not properly accelerate. The vehicle was taken to an independent mechanic who diagnosed that the rocker arm and fuel injection were faulty and needed to be replaced; however, the parts were not available from the manufacturer. The manufacturer was notified of the failure. The local dealer was not notified. The failure mileage was 54,000.

- Johns Island, SC, USA

The contact owns a 2014 Chevrolet Impala. The contact heard clicking noises coming from the front end of the vehicle. The contact stated that the noise grew louder when the vehicle was at a stop and when the engine was started. There was no warning indicator illuminated. The dealer and manufacturer were not contacted. The vehicle was not diagnosed or repaired. The failure mileage was unknown.

- West Point, MS, USA

While driving on the interstate the car has shut off and the lights pop up saying rear stability, ABS anti theft detection, and the check engine light.the car has done this three times so far with my child in the car.

- Killeen, TX, USA

The contact owns a 2014 Chevrolet Impala. While driving various speeds, the vehicle suddenly shut off. The contact indicated that the failure occurred on several occasions when slowing down and making turns. The vehicle was taken to bill fox Chevrolet (725 S rochester rd, rochester hills, mi 48307) to be diagnosed, but the failure could not be duplicated. The manufacturer was notified, but no assistance was offered. The failure mileage was 90,000.

- Rochester Hills., MI, USA

I live in howard beach, nyc and saw an odd thing on line involving a nypd 106 which is our local precinct there where one of their Chevrolet models there had a like mechanical malfunction and it exploded there. It was so close to that thing in 1996 with twa flight 800 there remember that? besides that, they had photos on google photos of the nypd 106 car there all exploded and parked by the curb with the cause a mechanical malfunction like remember twa flight 800 in 1996 there with the plane there the mechanical malfunction made the plane explode there. Yes, I hope this does not continue. There is a photo of it on google pictures.

- Howard Beach, NY, USA

The contact owned a 2014 Chevrolet Impala. While the vehicle was parked and turned off, an explosion occurred and flames appeared from the engine compartment. The fire department was called to the scene and extinguished the flames. The vehicle was destroyed. The cause of the failure was not determined. The manufacturer and faulkner Chevrolet (298 stoke park rd, bethlehem, pa) were notified of the failure. The failure mileage was 118,000.

- Andreas, PA, USA

The contact owns a 2014 Chevrolet Impala. While driving at unknown speeds and making a left turn, the vehicle stalled. Additionally, there was an abnormal grinding noise. The traction control and anti-lock brakes indicators were illuminated. The vehicle was taken to the local dealer (reeder Chevrolet, 4301 clinton hwy, knoxville, tn 37912, (865) 297-4310) where it was diagnosed that the speed sensor and sub-assembly needed to be replaced. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was 85,000.

- Maynardville, TN, USA

The contact owns a 2014 Chevrolet Impala. While making a left turn at a low speed, a grinding sound was heard coming from the engine compartment. In addition, the brake assist, traction control, stability control, and ABS warning indicators illuminated. The vehicle was not taken to a dealer or an independent mechanic for diagnostic testing. The vehicle was not repaired. The manufacturer was not notified of the failures. The approximate failure mileage was 74,000.

- Pittsburg, PA, USA

On October 4 while driving on a 2 lane highway in ash flat, Arkansas, my 2014 Chevrolet Impala's engine quit running suddenly. I had no power whatsoever. Fortunately, I was able to reach the shoulder of the road. After turning the key off I then back on I was able to start the engine. It seems to be okay. I shudder to think what could have happened on a busy interstate. Needless to say, I am apprehensive about driving this vehicle in heavy traffic. I noticed there have been two other similar incidents reported on same year/model cars, I have 55,000.miles on my vehicle.

- Gassville, AR, USA

While I was driving 60mph on an interstate my car notification screen displayed "service stabilitrak"/ "engine power reduced"... then my car acceleration seemed to have died and car slowed all the way down to around 20 mph with the gas pedal diwn to the floor... a big semi truck was behind me and had to break and swerve around me while blowing his horn...I was nearly killed.

- Munster, IN, USA

2014 Chevy Impala - 50,000 miles - the vehicle will lose power when trying to accelerate. It will suddenly regain power and the engine will surge. On 8/20/18 I can to a stop at a stop sign in a residential neighborhood. I pressed the accelerator, but the car did not respond and almost stalled. I did not realize how far I was pressing the accelerator, and when the car regained power the front tires squealed from the resulting burnout. Luckily, I didn't run anyone over from taking off like this. A mother was with her child on the sidewalk and was not pleased with the way I was driving in an area where kids play. This car has had one problem after the other. I discovered a GM service bulletin pip5507B - "in ambient temperatures 100F or higher, vehicle may exhibit a hesitation or stalling condition - customers can be advised to utilize fuels with octane 91 or higher, refrain from idling, and only park vehicle in a covered garage. As long as you don't use this vehicle, you're fine. I can't believe this is a known safety issue and no recall. I guess someone has to be killed, first.

- Hamilton, OH, USA

The contact owns a 2014 Chevrolet Impala. The contact stated that while driving at various speeds, a loud roaring noise was heard, the engine vibrated, and when depressing the on-star button a clanking metal noise was heard under the vehicle. The engine warning light illuminated. The vehicle was taken to rincon Chevrolet Inc. Located at 5480 ga highway 21 S, rincon, ga 31326 where it was diagnosed with a crank valve failure, which was allowing to much air into the engine. The contact stated that the vehicle was not repaired due to the dealer was waiting the crank valve parts. The manufacturer was notified of the failure and referred the contact to NHTSA. The failure mileage was approximately 77,000.

- Springfield, GA, USA