2011 Buick Lacrosse: jerking or lurching

Filed Dec 16, 2016 · Fuel system, Transmission · 33,000 miles · DC

Tl* the contact owns a 2011 buick lacrosse. The contact stated that the vehicle began to leak fuel from under the housing unit. Whenever the contact attempted to accelerate from a stop, it would jerk and hesitate before accelerating. The contact took the vehicle to the dealer where it was diagnosed, but not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 33,000.

Filed Aug 4, 2015 · Transmission · 59,000 miles · VA

Currently, my car has 62k miles on it. 2011 buick lacross cxl awd 3.6 engine. The car is jerking forward during the low speeds between 2000-2500 RPM , when I move my foot off the accelerator, tranny shifts from 1st gear to 2nd or 3rd to 4th and this makes a very noticeable forward jerk. I have noticed this 6 months ago when it was not very noticeable but now it is getting worse. Specially in the city, during the stop and go traffic it is really very annoying and dangerous. If I drive longer it gets worse and sometimes I have to slam on the breaks to stop or slow down the car specially if I am going downhill. This happens when I start accelerating slowly from stop, up to 2000-2500 RPM and then move my foot off the accelerator. Basically tranny shifts to the 2nd gear (or 3rd) and jerks very noticeably forward. If I keep on pressing the gas pedal , it keeps acceleration without any problem. In slow stop and go city traffic if I want to slow down or stop, I basically take my foot off the gas pedal, this causes car to shift to upper gear and jerk forward, sometimes in the traffic I need to slam on the brakes to stop or slow down. Happens only during the low speeds (10-20 MPH) , and stop and go traffic.

Filed Apr 9, 2014 · Acceleration, Body · 12,890 miles · CA · crash · 1 injury

While turning left at a major intersection, car lurched forward and gained speed/momentum while at same time steering wheel became stiff and very difficult to turn & driver could not control the car. Car did not complete the left turn but rather continued driving as if all on its own and crashed into a high curb on right side of car. Air bags did not deploy; front car parts simply crumbled and fell off; suspension was ruined; car tire was punctured along with the tire rim being cracked clear through in a couple of areas. Driver was injured with head injury, cracked rib, and broken rt. Forearm. Car was totaled out by the insurance company.

Filed Jul 29, 2013 · Acceleration, Transmission · 4,181 miles · OH

I noticed this problem not long after getting car when stopped in drive going from brake to gas car seems to act like its on oil slick then catches on with a sudden jerk. It will also when going from gas to brake even on incline will lunge forward it also will just suddenly speed up with out any acceleration its like the car is in cruise control. I have had car in several times and always they cant tell me anything I'm not the only person who notices this anyone who is in car asks what was that or what just happened.

Filed Oct 26, 2012 · Electrical, Engine · 8,000 miles · MI

When turning left at a traffic light, my car lost power and I wasn't sure I was going to make it around the corner. After a few seconds my car regained power. 45 minutes later, I made a right turn into heavy traffic and then felt a sudden lurch. I looked in the rear view mirror and saw that my trunk had popped open. I managed to get off the highway, parked the car and turned off the ignition. I got out, closed the trunk, got back in the car, and fastened my seatbelt. Before I could close the door, the trunk popped open again. This occurred three times before the trunk finally stayed closed. A few minutes later, I parked the car, opened the door, started to get out and the warning chime sounded. I got back in and saw that the on the console shift lever that indicates your car is in park was lit up even though the car was turned off. In order to get the light to go off, I had to restart my car and then turn it off again. Next I pushed the onstar phone button and asked to call my home. I got a busy signal. I called a second time and my husband at the number I was calling, heard me telling onstar call my home' but I couldn't hear him trying to talk to me. All of these things happened within 1 1/2 hours. The next day, I found that I could not lock the door by touching the lock spot on the outside door handle. Then I could not unlock the car door by pulling on the door handle when the key was in my pocket. I have had the car for 1 year and eight months and the driver's memory seat has often lost its memory. Sometimes just one button but most of the time both buttons. Prior to this I had been having trouble with my trunk. I'd leave my car parked in a public parking lot and come out to find my trunk wide open. On may 3rd the gm dealer replaced a part hoping to fix this problem.

Filed Aug 5, 2011 · Engine · MN

Tl* the contact owns a 2011 buick lacrosse. The contact stated that the transmission was slipping. The failure had progressively gotten worse and the vehicle would violently jerk into gear on an intermittent basis. The vehicle was taken to an authorized dealer where the contact was informed that the transmission was not the cause of the failure, but rather the programming of the computer. The dealer stated that the computer was sending incorrect signals to the transmission, causing the failure. The manufacturer was aware of the failure, but there was no remedy for the computer system available. The failure mileage was unknown and the current mileage was 21,000. Sm.

Filed Apr 5, 2011 · Suspension · 3,036 miles · IA

I was driving our buick lacrosse with 3036 miles on it, at 58 MPH, when the wheel began to jerk back & forth violently. I was skidding down the road unable to steer. I was able to get to the side of the road and eventually have the car towed in. The right rear tie rod bolt had broken. When this happened the suspension control arm was bent. Both parts have been replaced.. We were told they had not seen this happen before and no explanation as to what would have made it happen.