2017 Chrysler Pacifica: sudden unintended acceleration

Filed Oct 17, 2023 · Acceleration, Electrical · 80,000 miles · AZ

The contact owns a 2017 Chrysler Pacifica. The contact stated while driving at an undisclosed speed, the vehicle briefly lost motive power before suddenly accelerating quickly, causing the contact to brake hard and bring the vehicle to a complete stop. After restarting the vehicle, the vehicle returned to normal functionality, but the failure became a regular occurrence. The electronic throttle control warning light was illuminated. The vehicle was towed to the dealer, who was unable to determine the cause of the failure. The vehicle was not repaired, and the failure reoccurred. The vehicle was taken back to the dealer, but the dealer was unable to determine the cause of the failure. The contact was informed that the brake sensor needed to be replaced. The vehicle was repaired, but the failure reoccurred. After investigating the failure, the contact related it to the federal safety agency Campaign Number: 19V348000 (Electrical System), but the VIN was not included. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 80,000.

Filed Oct 6, 2023 · Acceleration · 110,329 miles · MN

The contact owns a 2017 Chrysler Pacifica. The contact stated while driving 20 MPH, the vehicle independently jumped forward without the accelerator pedal being depressed. No warning light was illuminated. The vehicle had not been diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 110,329.

Filed May 2, 2023 · Electrical · 8,892 miles · IL

The contact owns a 2017 Chrysler Pacifica. The contact stated that after the vehicle was repaired under the federal safety agency Campaign Number: 19V348000 (Electrical System), the feature became inoperable. The START/STOP feature warning light was illuminated. The vehicle was taken back to the dealer, where an unknown repair was completed; however, the failure persisted. The contact stated that while attempting to drive from a complete stop, the vehicle failed to respond while depressing the accelerator pedal. The contact stated that at the second attempt, the vehicle lunged forward. The contact stated that the failure had been reoccurring. The dealer was contacted and charged a diagnostic test fee. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 8,892.

Filed Nov 28, 2022 · Transmission · 82,000 miles · IN

The contact owns a 2017 Chrysler Pacifica. The contact stated that while driving at various speeds, the vehicle lunged forward, nearly causing a collision with the Pull Over message displayed and the Auto Start/Stop warning light illuminated. The vehicle was taken to the dealer; however, the dealer was unable to duplicate the failure. The dealer determined that the transmission was faulty and replaced the electrical and main batteries; however, the failure recurred. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 82,000. The contact stated that there was no guarantee that the dealership was going to fix all of the issues. The vehicle has since been sold and traded in.

Filed Oct 26, 2022 · Engine, Transmission · MI

'Engine failure and needs replacement of head gasket. Never overheated. Also excessive "bucking" feels and sounds like you are being rear ended. Causes car to bang and lunge forward. Was repaired once before , dealer stated it was a software issue. Problem continues and gives you back pain and wiplash type sensation as it is a very abrupt and strong occurance. Now engine has failed and needs head gasket repaired for over $3000.

Filed Oct 12, 2022 · Transmission · FL

Vehicle has intermittent shifting issues. During shifting it may stall/hesitate in shifting to the next gear. During shifting it may slam/hardshift into the next gear. The hesitation in shifting causes a lengthy pause in acceleration and could cause an accident when crossing lanes of moving traffic. The hard shift could cause the vehicle's driver to be startled and react in a way leading to an accident or it can cause car to lunge forward faster than expected causing an accident. The issue is intermittent. There are no warning lamps.

Filed Sep 20, 2021 · Brakes, Fuel system · MA · 1 injury

While traveling on a dry highway, with good tires/new tires, and decelerating from 45 mph and approaching a red light, and a moderate, but firm pressure on the brake to bring the van to a full stop, the speed decreased to 15 mph, with the tachometer stable at 800 rpm and then to 10 mph, with both hands on the wheel, left foot on the dead pedal, and right foot on the middle of the brake pedal. As the speedometer made the transition at 10 MPH, the tachometer surged to 1500 RPM and then to 3000 in under 3 seconds, which cause me to initiate an emergency action drill of stabbing the brake pedal hard three times and rotating the transmission control to the lowest gear. The transmission refused to shift lower, and the control of the vehicle turned on oa wrestling match and the tachometer surged from 1500 RPM, them 3000 RPM, then 4500 RPM, and then 6000 RPM, each time the vehicle acting like it was repeatedly being rear-ended at a speed exceeding 15 MPH. The engine could not be disengaged and aceelaretd uncontrollably to over 40 MPH, through a busy intersection, and required over 24 hard break stages over a 10 second period to actually stop the car, and the engine refused to disengage until stopped. Once the car was restarted it immediately surged forward trying to fight through the hard applied brakes. The cruise control was never on the entire time. I then stut down the engine once I was able to wretle it to a stop with the engine climbing to over 4500 RPM. I then took this vehicle to a safe area, and repeated the conditions, and again as the vehilce speed dropped below 15 MPH, and certainly below 10 MPH, the egine tachometer increased in steps of 1500 MPH, 3000, 4500, 6000 RPM, and no control could be achieved other then violently "stabbing" the brake pedal. Under controlled conditions the behavior was repeatable over 20 times. This is a life threatenign defect, and it appears to be software in origin. I have CAN data streams from the events (23) and video.

Filed Jul 5, 2021 · Acceleration, Brakes · MT

My wife said that she was pulling into a parking spot and did not have her foot on the accelerator as she coasted into the spot. The car accelerated by itself she had to step hard on the brake to get it to stop before she hit another car. It was not a problem with a floor mat since they are snapped into place and do not come close to the pedals. I do see that similar problems have been reported on this type of vehicle with no satisfaction received. This incident is the 2nd time it has happened according to my wife. She does most of the driving around town.

Filed Jan 21, 2021 · Engine · PA

2017 chrysler pacifica. Consumer writes in regards to stalling engine. *ld the consumer stated the vehicle would nearly stall and then lunge forward while being driven. The dealer and manufacturer were made aware of the failure. The dealer updated the vehicle software but, the failure persisted. The manufacturer had not responded to the consumer's complaint.

Filed Aug 7, 2020 · Engine, Transmission · 45,000 miles · VA

When accelerating at low speeds the van shifts hard into gear and will not continue to accelerate even though the gas pedal is pressed. If I do not let off the gas when this happens the van will lunge forward. This happens in all conditions and on all road types. I have taken it to the dealership and they said it's fine. I can not replicate this on demand.

Filed Dec 12, 2019 · Transmission · IL

When going about 10-15 miles per hour, the vehicle will suddenly lunge forward and make a tremendous clunking sound like metal against metal. This happens about a few times a month. It can be replicated by barely pressing down the gas pedal, usually happens when navigating through parking lots. Very scary.

Filed Oct 15, 2019 · Transmission · 6,000 miles · VA

Power train intermittently shifts hard at low speeds (under about 20 MPH) in stop and go type traffic causing the vehicle to unexpectedly lunge forward. It is believed this will eventually lead to a vehicle accident. The local fica dealer (pomoco nn) is unable to resolve. Vehicle is still under mfgr warranty.