Buick Lacrosse check engine light comes on

Filed Nov 11, 2025 · Electrical, Fuel system · SC

When I get to a stop sign, and a stop light, when trying to accelerate after a complete stop, the car would struggle to accelerate to go forward. Where the shifting gears would start blinking, and the warning lights (engine power reduced, engine light, and the traction safety collision light) would display itself making it misfire and impossible to even go forward while pressing the gas pedal. It put me and other drivers at a safety risk because it would roll backwards after taking my foot off the breaks to accelerate where it would almost hit drivers behind me at the stops as well as them almost mistakingly hitting me in the back when my break lights stop reflecting when trying to accelerate at stop lights with traffic. I have had it diagnosed with the recall codes N20231344O GM # 20V668000 the federal safety agency # 18V576000 18V358000 But the dealships are saying there aren't any recall for the vehicle. This issues is ongoing.

Filed Nov 10, 2025 · Transmission · PA

I had first seen a check engine light for a month and it would come on and off and sometimes it would stay off for about a week before it comes back on and do the same thing. I had noticed some slippage within the transmission a week prior to this incident and was looking to take it in for an inspection but money is tight so I couldn’t afford to go in for an inspection, especially a repair. I was driving to work and the vehicle was doing its slippage and I go about a mile or two until I reach an intersection, I came to a red light and stopped, when it turned green, I started pressing on the gas but the car didn’t move, it only revved. I then proceeded to put it in park and turn it off then on, only for it to do the same thing. So from there I had it pushed off into a nearby parking spot and then towed to a wrenchrite where they had confirmed it had nothing to do with the transmission fluid or anything minor. I then had it taken to Emory Services and they had confirmed the transmission its self had been fried.

Filed Nov 5, 2025 · Acceleration, Electrical · MS · crash

during a regular drive the check stabiltrack system message popped up on the dash in the middle circle and then the little car with the squiggly lines behind it popped up and the check engine light came on and started blinking. Immediately I noticed lack of steering control, the car's speed was accelerating and decelerating on its own, jerking and stalling also was observed. As of now the car sits in my driveway because I don't trust the safety of it. I literally feared my life was in danger driving it because of the lack of handling and the acceleration shifts that were so random. So I returned home, as I pulled into the yard the vehicle jerked hard while I was attempting turn into the driveway causing me to hit my mailbox and damaged the side fender and front bumper. no one was injured but the car was damaged as stated before and I'm scared to drive it anywhere. The unpredictable behavior displayed in the vehicle puts other drivers at risk as well because I can't control the vehicle properly. so I'm guessing all in all its a malfunction somewhere in the electrical system. I have read about recalls in my type of vehicle involving the ESC and it appears to be what is happening with mine. As of now it sits in my driveway I need a remedy and fast because that was my only source of transportation and I'm a single mother of four with a lot to take of and no way to do it.

Filed Sep 22, 2025 · Acceleration, Engine · 26,600 miles · MA

The contact owns a 2018 Buick LaCrosse. The contact stated the hand controls were not working properly. While driving, the accelerator pedal was depressed, but the vehicle failed to respond. The engine power reduced message was displayed, and the check engine warning light was illuminated. After several attempts, the codes were reset, and the vehicle worked as designed. The contact linked the failure to the Special Coverage Campaign: N182188250. The vehicle was taken to an independent mechanic who disconnected the hand controls and informed the contact that the controls were operating as designed. The vehicle was taken to the local dealer, where it was diagnosed, and determined that the accelerator pedal position sensor needed to be replaced. The vehicle was repaired, but the failure recurred. While driving at 55 MPH, the vehicle lost motive power and decelerated to 15 MPH. The message “Engine Power Reduced” was displayed, and the check engine warning light was illuminated. The vehicle was taken back to the same local dealer, where it was diagnosed and determined that the accelerator pedal position sensor needed to be replaced; however, the failure persisted. The manufacturer was contacted, and referred the contact to the federal safety agency Hotline to report the failure. The failure mileage was approximately 26,600.

Filed Aug 26, 2025 · Engine · MI

Today is 8.26.2025, I took this car back and left it w/dealership: Let them figure it out! I told them 0ne month after purchase this car is constantly EMPTY with no/Oil. I should not be getting oil changes this often. "Oh, it just burns more Oil and you bought a USED car"...Months later I hear smalls sounds, engine light comes on, then goes away, smoke begans to continue spreading behind the BUMPER building a permanent black spot on bumper! It smells, from time to time, plus car feels sluggish when driving past 50mph almost SCARED it will cut off** Now, I gather my funds that I don't have to SPEND (CASH) no CREDITCARD and I proceed to BELLE TIRE! I am on file within their system. (Receipts) They do what they do... apparently no Leaks. But the car is burning too much oil!! too Fast! "Keep an Eye on your Levels"... hmmm* I also got a MAINTENANCE TUNE-UP on my next visit. So far roughly $2000 has been SPENT towards this VEHICLE (Buick). (New Battery also) plus AAA Cost *I have a Membership* Now time continues to move forward this car KNOCKING,CLOUDS of SMOKE, In the car, Outside the car, Around the Car, thru the vents, PULLING, STAHLING, KNOCKING, CLUNCK,CLUNCK,; EMBARASSING!!! My son and I, Oh no... *We the Meat Inside a Barbecue Grill* DROP OFF/ASAP (pulled over Called AAA). (7/24/2024 - 8/25/2025)Owned this car 1Yr!! I need a New Car they wont give me one...I made every monthly payment On time all by WESTERN UNION (receipts). I go into the same store each month 19th -22nd and PAY. They don't want to TRADE-IN either*

Filed Jul 26, 2025 · Electrical, Engine · CA

Well the belt tensioner and the hybrid motor Drive Motor Performance and Hybrid Power train Control Module Requested MIL Illumination Yes not just any mechanic can work on the car because of the hybrid system is to much voltage And the check engine light came on the car

Filed Apr 3, 2025 · Acceleration, Electrical · AL

Improperly calibrated Stabilitrak ESC system. Accelerator pedal position sensors 1-2 5v reference 3 circuit Heated oxygen 2 sensor Car is losing power and esc light is on along with check engine light

Filed Jan 20, 2025 · Engine · WA

Diagnostic trouble code P0442. Evaporative emission system leak detected indicated by check engine light on.

Filed Sep 28, 2024 · Electrical · LA

I was not in a car accident! Hoping not to be just want to report this issue.Car kills in mid driving stability track comes on flashing checking engine with stability light and track system light as well! leaves me stranded in the middle of wherever I am! Stability light comes on car will not start back up . It’s takes a while to start back up! Having kids in the car with this issue is a major problem! I have several videos of the car doing it and will try to keep track of it! The check engine light is not on when flashing not reads when I check it just stability lights! The car has been doing this for months now! I’ve read that this is an issue with other Buicks like mines. Please help get this issue resolved the proper way! Also the security comes on when the car does that

Filed Jun 28, 2024 · Transmission · 100,000 miles · AR

The contact owns a 2015 Buick LaCrosse. The contact stated that while stationary at a stop light and attempting to depress the accelerator pedal, the vehicle hesitated while responding. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic where the vehicle was diagnosed with transmission failure. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 100,000. The VIN was not available.