2015 Chevrolet Impala Engine Problems

The contact owns a 2015 Chevrolet Impala. The contact stated that while driving at various speeds, the vehicle stalled. The contact was able to restart the vehicle on several occasions. During other failures, the vehicle restarted independently while rolling forward. During one failure, the vehicle had to be towed back to the residence. There was no warning light illuminated. The vehicle was taken to two local dealers who were unable to duplicate the failure. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 212,000.

NHTSA ID

11724709

Incident

Mar 3, 2025

Mileage

212,000 mi

The contact owned a 2015 Chevrolet Impala. The contact stated that while the vehicle was parked, turned off, and unoccupied, the front of the vehicle had caught fire. The fire was extinguished by the local fire department. The fire department indicated that the failure may have occurred due to a mechanical malfunction of the vehicle. The vehicle was consumed by the fire. A police report was not filed. The dealer was not contacted. The vehicle was not diagnosed or repaired. The vehicle was destroyed. The manufacturer was not made aware of the failure. The approximate failure mileage was 172,000

NHTSA ID

11695820

Incident

Oct 27, 2025

Mileage

172,000 mi

The contact owns a 2015 Chevrolet Impala. The contact stated while the vehicle was started, there was a loud clanking sound coming from the engine. Additionally, there was an abnormal gasoline odor coming from the vehicle. The vehicle was inspected by the contact who became aware of a gasoline leak coming from the engine compartment. No warning lights were illuminated. The vehicle was taken to the dealer to be diagnosed. The contact was informed that the pressure pump needed to be repaired. The vehicle was repaired; however, the failure persisted. The vehicle was taken back to the dealer where it was diagnosed with catalytic converter failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 136,000.

NHTSA ID

11589077

Incident

May 16, 2024

Mileage

136,000 mi

The stabiltrac light comes on,sometimes I lose power. Sometimes the back up camera doesn’t work. Sometimes the parking brake light comes on the dash. Then ieverything will suddenly go away and everything is fine,only to have the same problems. This has been happening for months. I took it to the dealer multiple times and they are unable to fix it.

NHTSA ID

11525111

Incident

May 31, 2023

Issue with the Transmission malfunctioning. The dealership service the transmission several times. And know the transmission needs replacement after the warranty has expired.

NHTSA ID

11429081

Incident

Jul 17, 2020

My left hand (front bank) catalytic converter near the cylinder head fell off yesterday at the mounting flange. It landed in/on my fan. I went online to find a replacement part and found GM service bulletin PIP5419a & b first issued in 2016.. That bulletin explains a known "defect" with the weld. The catalytic converter pipe cracks at the mounting weld. the TSB was issued for all Impalas from 2014-2016, all VINS all transmissions, all 3.6l RPO LFX engines. It says that GM is working on a solution for this concern. Why isn't there a recall on this defect? The file I've attached is not from my car but from the TSB. It's very similar to what my cars catalytic converter looks like.

NHTSA ID

11423122

Incident

Jun 30, 2021

THERE IS A SLIGHT VIBRATION AROUND 20 TO 30 MPH AS GEARS ARE SHIFTING AND IT GOES AWAY...DOES IT REPEATEDLY AT SAME POSITION AND EVERYTHING GOES BACK TO NORMAL...NO CODES OR LIGHTS ON DASH HAPPENS MOSTLY IN MOTION ON INCLINES AND EVEN GROUND AT SAME SPEED GROUPING

NHTSA ID

11391100

Incident

Feb 1, 2021

Mileage

151,345 mi

WHEN ACCELERATING, THE VEHICLE REVS TO HIGH RPMS AND A LOSS OF POWER TO THE WHEELS OCCURS. THIS HAPPENS MOST NOTABLY WHEN ACCELERATING TO PASS WHILE CRUISING AT SPEEDS OF 50MPH AND UP. CHECK ENGINE LIGHT APPEARED AND CODE P16CF WAS GIVEN AND TRACKED DIRECTLY TO THE VARIABLE TIMING OIL CONTROL VALVE.

NHTSA ID

11348900

Incident

Apr 20, 2019

Mileage

100,000 mi

TL* THE CONTACT OWNS A 2015 CHEVROLET IMPALA. WHILE DRIVING 20 MPH SMOKE WAS DETECTED FROM UNDERNEATH THE HOOD. UPON EXITING VEHICLE, THE CONTACT NOTICED OIL EMERGING FROM ENGINE. THE LOW OIL PRESSURE WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHO STATED THE ROCKER ARM CONTROL NEEDED TO BE REPLACED. THE CONTACT CALLED HERRIN-GEAR CHEVROLET (1685 HIGH ST, JACKSON, MS 39202 601) 354-3882) WHOM INFORMED HER THAT THE PARTS WERE ON BACK ORDER. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 104,928.

NHTSA ID

11324373

Incident

May 10, 2020

Mileage

104,928 mi

OWNERS OF 2014-2015 IMPALAS ARE NOT ABLE TO GET THIS PART CALL THE ROCKER ARM CONTROL VALVE. THEY NO LONGER MAKE THIS PART TO FIX THE CARS. SO PEOPLE WHO OWN THOSE MODEL CARS ARE FORCED TO TRADE IN CARS THAT THEIR STILL PAYING CAR NOTES ON. GMC HAS NOT SPOKE ABOUT THIS MATTER AND LEFT THEIR CUSTOMERS STUCK OUT WITHOUT WARNING. WE ARE FORCED TO GO BACK INTO LONG TERM CAR NOTES WHEN HALF OF THE PEOPLE ALMOST FINISHED PAYING OFF THEIR NOTE. AND OTHERS HAVE PAID OFF THEIR CAR THAT'S 5 YEARS OLD THAT THEY CAN NO LONGER BUY. IT'S VERY SAID .

NHTSA ID

11321547

Incident

Apr 13, 2020

ROCKER ARM OIL CONTROL VALUE WAS REPLACED ONCE AND HAS WENT OUT AGAIN AND THE PIECE WAS SAID TO BE FAULTY BUT GMC CANNOT TELL ANYONE A DATE ON WHEN THEY WILL HAVE THIS PART AVAILABLE.IVE HAD THIS PART REPLACED ONCVE ALREADY AND NOW IM BEING TOLD IT IS NO LONGER AVAILABLE AND MY CAR THAT I HAVEN'T HAD EVEN A YEAR CANT BE FIXED

NHTSA ID

11307028

Incident

Jan 9, 2020

Mileage

89,000 mi

P16D0 CODE

NHTSA ID

11255473

Incident

Sep 5, 2019

Mileage

71,000 mi

TL* THE CONTACT OWNS A 2015 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 25 MPH, THE VEHICLE STALLED WITHOUT WARNING CAUSING ANOTHER VEHICLE TO CRASH INTO THE REAR. THE CONTACT MENTIONED THAT THE POLICE WAS THERE BUT WAS UNAWARE IF A REPORT WAS FILED. THE AIR BAGS DID NOT DEPLOY. THE CONTACT STATED THAT THERE WERE NO INJURIES. THE VEHICLE WAS NOT DRIVABLE AND WAS TOWED TO A TIRE FACILITY WHERE THE FAILURE WAS UNDETERMINED THE VEHICLE WAS THEN TOWED TO SERRA CHEVROLET BUICK GMC OF NASHVILLE (2340 GALLATIN PIKE N, MADISON, TN 37115 (615) 543-5456) WHERE THE CONTACT FAILED TO REMEMBER THE DIAGNOSIS HOWEVER, DID RECALL THAT THE BATTER WAS REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 60,000. THE VIN WAS NOT PROVIDED.

NHTSA ID

11242829

Incident

Jul 19, 2019

Mileage

60,000 mi

WHILE DRIVING MY CAR SUDDENLY THE INFORMATION AREA ON THE DASH BOARD SAID "SERVICE STABIL A TRACK " "SERVICE TRACTION CONTROL" AND "POWER TO ENGINE REDUCED" THEN THE SERVICE ENGINE LIGHT CAME ON. WHEN I TOOK IT TO THE DEALERSHIP THE SERVICE REP TOLD ME THAT I WOULD NEED TO REPLACE THE HIGH PRESSURE FUEL PUMP AND THE FUEL FEED PIPE. HE ASKED IF I WAS USING E85. I TOLD HIM I WAS AND HE TOLD ME THAT E85 CAUSES THAT DAMAGES IN THE CHEVROLET VEHICLES AND IS WHY HE WON'T USE IT IN HIS OWN VEHICLE. THE OWNER'S MANUAL ENCOURAGES USEING E85. GM WILL NOT PAY TO REPAIR THIS EVEN THOUGH I FOLLOWED THEIR OWNER'S MANUAL.

NHTSA ID

11172049

Incident

Dec 24, 2018

Mileage

45,000 mi

TL* THE CONTACT OWNS A 2015 CHEVROLET IMPALA. WHILE THE CONTACT WAS PARALLEL PARKING WITH ONE FOOT ON THE BRAKE PEDAL, HE OPENED THE DRIVER'S DOOR AND PLACED THE OTHER FOOT ON THE OUTSIDE PAVEMENT. THE VEHICLE SUDDENLY SURGED FORWARD AND PULLED THE CONTACT OUT OF THE VEHICLE. THE CONTACT'S FOOT BECAME PINNED BY THE REAR WHEEL OF THE VEHICLE. IT TOOK THE CONTACT HALF AN HOUR TO WIGGLE OUT FROM UNDER THE VEHICLE. THE CONTACT QUICKLY SHUT OFF THE VEHICLE. THE CONTACT WAS BRUISED AND SCRATCHED AND LATER RECEIVED MEDICAL ATTENTION. A POLICE REPORT WAS NOT FILED. THE DEALER (NIMNICHT CHEVROLET, 1550 CASSAT AVENUE, JACKSONVILLE, FL 32210, (904) 677-8823) DIAGNOSED THAT THE PURGE SOLENOID WAS STUCK OPEN AND CAUSED THE VEHICLE TO LURCH FORWARD. THE VEHICLE WAS REPAIRED. A WEEK LATER, WHILE DRIVING, THE ENGINE REVVED AND THE CONTACT HAD TO DEPRESS THE BRAKE PEDAL WITH BOTH FEET. THE CONTACT SHIFTED THE VEHICLE INTO NEUTRAL AND THE ENGINE IMMEDIATELY DECREASED FROM 3,000 RPMS. THE CONTACT CALLED THE MANUFACTURER AND WAS PROVIDED A CLAIM NUMBER. THE MANUFACTURER SENT A CLAIMS REPRESENTATIVE TO VISIT THE CONTACT, TAKE PICTURES, AND RECORD THE FAILURE. THE CONTACT WAS WAITING FOR A REPRESENTATIVE FROM THE MANUFACTURER TO CALL HIM BACK. THE FAILURE MILEAGE WAS 29,000. *TT*JB

NHTSA ID

11166037

Incident

May 4, 2018

Mileage

29,000 mi

GM REIMBURSED ME FOR ONE OF TWO REPAIRS NEEDED TO FIX A PROBLEM THAT CAUSED THE CHECK ENGINE LIGHT TO TURN ON. THESE TWO REPAIRS WERE PERFORMED THREE MONTHS PRIOR TO GM'S JULY 2018 LETTER ADVISING ME OF ADDITIONAL PROTECTION FOR MY 2015 IMPALA. I WAS DENIED REIMBURSEMENT FOR THE FIRST FIX IDENTIFIED BY THE CAR'S COMPUTER TO REPLACE THE EVAC CANISTER VENT VALVE SOLENOID COSTING $198.77. I WAS REIMBURSED FOR THE SECOND FIX TO REPLACE THE PURGE VALVE COSTING $147.55. IN APRIL 2018, GM HAD NOT IDENTIFIED ANY FIX OTHER THAN THE ONES IDENTIFIED BY MY CAR'S COMPUTER. THEREFORE, BOTH MY REPAIRS WERE PERFORMED TO FIX THIS PROBLEM AND SHOULD HAVE BEEN REIMBURSED AS FIXES FOR THE INOPERATIVE PURGE SOLENOID ADDITIONAL PROTECTION GM IDENTIFIED IN ITS JULY 2018 LETTER TO ME.

NHTSA ID

11127951

Incident

Apr 11, 2018

Mileage

41,999 mi

ENGINE FIRE

NHTSA ID

11060920

Incident

Dec 20, 2017

Mileage

35,000 mi

PARKED CA ON CONCRETE DRIVEWAY OF RESIDENTIAL HOME AT APPROX. 9:30PM 8/5/17 LOCKED CAR & WENT TO BED. WAS AWAKENED AT 5:30AM AND TOLD CAR WAS ON FIRE. CAR WAS DESTROYED BEFORE FIRE DEPT. ARRIVED..

NHTSA ID

11013659

Incident

Aug 6, 2017

Mileage

23,800 mi

SEVERE VIBRATION WITH FOOT ON BRAKE PEDAL TRANSMISSION IN DRIVE, THE COLDER THE OUTSIDE TEMP. THE WORSE THE VIBRATION GETS. BEEN TO DEALERSHIP 6 TIMES DIFFERENT REPAIRS MADE NOTHING WORKED. I HAVE ALL REPAIR DOCUMENTS. CHEVROLET ACKNOWLEGED THE PROBLEM HOWEVER HAS NO SOLUTION.

NHTSA ID

10895149

Incident

Nov 21, 2014

Mileage

480 mi