Problems with 2017 GMC Acadia ELECTRICAL SYSTEM

Shift to park warning light turns on when car is in park. headlights stay on.

With my vehicle stationary and shifter in the park position, i turn my car off and the vehicle turns off but the instrument cluster says "action required - shift to park". this message also does not allow the day time running lights to turn off and if the lights don't turn off the battery drains if parked for long stretches. i have to turn the car on/off several times before it engages and the message disappears.

Vehicle does not acknowledge that you are in park and will not turn the vehicle off completely. the engine shuts off, but lights and everything else stays on. if you exit the vehicle it beeps and the horn honks.

When i put my vehicle in park and turn it off, my shift to park message comes across and i have to turn my vehicle back on and move the gear from park to something else and back to park. sometimes this has to be done a few times before it will completely turn off.

The vehicle states to 'shift to park' but the vehicle is in park already. the vehicle will not turn off and keeps the battery running. i must start up the car and shift it to drive, then pack to park multiple times before the car recognizes it is in park. this happens every time, but the amount of time it takes to turn on and off to reach 'park' is random.

Shift to park alert appears when car is in "park" and attempting to shut engine off. electrical system stays on with bell chiming until i can restart car and re-shift again into "park". this may have to be done multiple times before alert no longer appears. does not happen every time when attempting to shut off engine, but when it does usually requires multiple restarting/re-shifting to get alert turned off.

When i put my car in park i get a warning that says my car is not in park action required. the vehicle bell continues to ding and will not allow me to lock the car. my fear is getting out the vehicle and it starting to roll not knowing if the vehicle is actually in park. this is very scary not knowing if it is safe to get out of the vehicle.

When i shift the car to park and turn it off, i get a warning on the dash that instructs me to "shift to park" even though i already have. the vehicle will not turn off, and as a result i have to turn the car on and off shifting repeatedly up to 20 times to finally get the car to recognize it's in park. the vehicle is totally unsafe as it will not stay in park!

Shift to park issue as described by others. gm dealer says it needs to replace a $20.00 harness + labor of over $200.00. "service parking brake" issue that randomly presented itself one day. i was unable to use the parking brake. gm dealer had to "upgrade" my ebcm for a whopping $200.00. how does gm think the consumer should have to pay for this. they have a monopoly because they are the only ones that can fix this!

When putting the vehicle into park, an error is displayed stating to shift the vehicle into park, even though the shifter is in p. in order to get this message to go away, i have to move the shifter up and down multiple times. could take up to 20 min to get the error to go away. i can not leave the vehicle until the error is off because the lights stay on and will drain the battery. i also notice that the vehicle rolls a little more after multiple attempts to get error message off. this is concerning that it may not realize its in park and roll into another vehicle causing damage to both or roll away. i took to my dealer and was told this is a 'known' issue and is not covered under warranty, nor is there a recall. i just paid out of pocket for new tires because gm knew the tires placed were 'wearing' too soon based on mileage. now, i am being told i will have to pay about $600 to get this fixed. gm knows of issues and not fixing them is wrong. this is not a new issue, has been listed as complaints for the past year, yet gm has done nothing to fix and continue to make the vehicle with the same issues. frustrating that i have to spend the money to fix an issue they know about! this needs pushed back to gm to hold them accountable and make this right. the shifter issue should be a recall and fixed.

When shifting the vehicle to park and then shutting off the engine, i get an error message 'action required- shift to park'. the vehicle is already in park! i've had to jiggle the shifter, press the brake while jiggling the shifter, restart the vehicle put in reverse, then back in park, and jiggle some more. the radio and lights (both interior & exterior) will not power off and the door chimes nonstop. this happens randomly and it has been a little over a month since the last incident which occurred two days after i had to replace the battery because i missed the error message heading in to work. the last 2 days my husband has disconnected the battery because nothing will work to power off radio & lights. i've had to replace the battery twice now in a new vehicle leased in 2016. the first time was due to brake recall, my vehicle being the only 2017 gmc acadia denali effected by that recall. the brake lights would remain on because the brake was basically sticking, draining the battery. that issue also disabled the cruise control as that feature is unavailable when breaking! this vehicle also had repair to wiring in driver side door due to water getting into the door frame from outside and corroding wires causing detection issues with the key fob. i could not unlock my doors without removing the key to manually unlock. while in the car wash, the vehicle lost connection with my key and the driver's seat moved all the way back as it would for easy exit which i had disabled. message stating key not detected wouldi was told a needed a new battery in my fob, dealership replaced, called & said everything was working as it should. they ran the vehicle through the car wash before i arrived to pick up the car. when i tried to unlock the doors, the vehicle would not recognize the fob. thank goodness the service rep was there to witness the malfunction.

Upon shifting the car to park and shutting off the engine, the console says, "shift to park". the car appears to roll some. i have not been on an incline to see if it is truly in park or not. it will not allow the electronics to shut off and will not let you lock the car so the car cannot be left when this happens. it has been happening intermittently and today i had to shut off and start the car and drive it 10-15 times before it would recognize it was actually in park.

The car will not recognize or shift to park.. the car will not turn off while the shifter is in park thinking that the car isn't in park. this is a safety issue since you believe it is in park when the car is saying it isn't and will not clear the alert unless you continuously turn the vehicle on and off and toggle the shifter. i have a video of the issue being reported

Our 2017 gmc acadia denali says to put the car in park before turning it off when the car is already in park and engine off. all electronics stay on and will kill the battery.

When parking the vehicle and attempting to shut off, the acadia gives the message "shift to park". the vehicle is clearly in park and i must start the vehicle again and shift to reverse or another position and turn off. the vehicle will not allow me to lock the vehicle and keeps power to the vehicle (draining the battery) until it recognizes that it is indeed in park. this has caused a stall and the vehicle to possibly still be in gear when parked leading to a rolling hazard. has taken as many as 15 times for the vehicle to realize it is in park. general motors has issued a tsb (18-na-297) regarding this issue, but is placing the cost of the fix on the consumer. this is a defective piece of equipment that has started a class action lawsuit.

Keeps telling me to put vehicle in park when it's already in park. also not consistent about telling you to check back seat. sometimes it does and sometimes it doesn't. it's turned on.

The car will not recognizes it is in park and will not let you shut it off sometimes. even worse it lets you shut it off but isn't actually al the way off. so the battery dies. gm dealer put new shifter in and it happened again. then they put a bother new sensor in and it happened again.

Getting a "shift into park" message when the car has already been put into park. it takes several times restarting the car and moving the shift lever in and out of park for it to recognize that it is in park.

Tl* the contact owns a 2017 gmc acadia. the contact stated that the vehicle would not shut off and the engine ran for hours. eventually, the internal system recognized that the vehicle was in park and finally turned itself off. the manufacturer had not done anything to address the failure; however, they issued technical service bulletin number: 18-na-297 on december 13, 2018. the contact called numerous unknown dealers across the country to try to buy the part mentioned in the service bulletin, but the part was still on backorder. the part that was needed for the repair was the transmission shifter assembly (number: 13528228). the cost of the part was less than $150. the contact stated that the vehicle was out of its initial warranty. the failure mileage was 47,500. the vin was unknown. *tr

Our 2017 gmc acadia denali is experiencing "action required" "shift to park" alert on the dash. the indicator on the dash shows the car is in "p" for park and the shifter is placed into the park position. the only resolve for this error to go away is pushing back and forth on the shifter until finally sometimes up to ten minutes, the system recognized that the car is actually in park. if you do not spend the time to try and make the system recognize that shifter is in the parked position the car will continue to try alert you with dinging inside the car and then honking. this is a known issue to which has been reported by several people upon our investigation after experiencing the problem. the part to which is needed to fix this issue is currently on backorder per our local gmc dealership to which there is no estimated time to receive the part in to resolve our issue. we are being told it could take "weeks" prior to this part being received to fix the issue.

I have several things that has went wrong with my vehicle since i had bought it two months after i got it it was in the shop sometimes whenever i parked it would not restart brake lights will stay on i've had my check engine light come service brake light has came on i've had the middle seat belt replaced twice nothing stuck in it it just will not latch it is back in the shop now whenever i put it in park it is telling me to shift it into park i had my car for two years and with in the two years it has been in the shop 15 times so much for having a new car and in joying it

When shifting to park and shutting the vehicle off message displays shift to park. i have had the shifter cable replaced and 3 months later it is doing it again. obviously there is another issue but gm cannot figure the issue out.

Upon turning vehicle off, "shift to park!" illuminates on the cluster. vehicle will not turn off until it is re-started, shifted in and out of gear. sometimes this needs to be done multiple times. there has been one instance the error would not clear, and i was forced to leave my vehicle on, as i went into a doctor appointment. this is very annoying, not to mention the wasted fuel with starting/stopping the vehicle 5-10 times each time i turn it off. i've taken video of the problem, however, it is too large to upload here. ridiculous.

Battery died, had to have replaced. car was approximately at 2 year mark when it died.

I got this vehicle brand new in 2016 it has approx43000 miles on it. last tuesday it would not start nothing worked towed to the gmx dealer they said it was a map light!!!! and it ran the battery down well today it did the same thing i do not believe it was the battery the same day it went out i received a applicaion download, i have no idea what that was. i paid alot of money for this vwhicle and i think there should be a recall before this problem causes death ' the vehicle is still at the dealership-i called to reort this problen to gmc the first evening noting was done either, called gmc ro toe didnt even show up

Tl* the contact owns a 2017 gmc acadia. the contact stated that while the vehicle was stopped with the gear shift lever in the park position, the shift to park warning light illuminated intermittently. the contact was then unable to turn the vehicle off while the warning light was displayed. the vehicle was taken to jim falk motors of maui located at (260 hana hwy #1, kahului, hi 96732), where it was repaired however, the failure recurred three times. the contact also stated that there was an abnormal sound when the steering wheel was turned in either direction. the vehicle was taken back to same dealer to be inspected. the contact was informed that the lug nuts on the front and rear wheels were improperly installed. the vehicle was repaired. the manufacturer was contacted and informed of the failure. a case was filed. the failure mileage was unknown.

When my vehicle was in park & i was going to turn it off it gave me this message action to park when in park. this has happened several times. i have taken it to the dealership & nothing can be done.

We have had numerous issues with the cars brakes automatically locking up when something triggers the collision safety break. specifically when crossing rail road tracks after a train has past. as a result the car stops completely and automatically while on railroad tracks and won't allow you to move. you have to put the car in park, wait (on railraod tracks) and then attempt to move but it may activate it again so you have to do it again. meanwhile you are on tracks, with cars behind you honking and screaming. this has happened numerous times, reported it to our dealer, service and gmc corporate where nothing was done. they said they would put in a "black box" like device but never did. it is a major safety concern for my family and one that gmc is not addressing adaquately.

Dash displays that the transmission is not in park when it is for sure.

When car is put into park a 'action required' comes up saying 'shift into gesr' which the vehicle is already in park. therefore, will not shut off causing the battery to drain and die.

My vehicle would not unlock for hours then it finally did and ran for a bit. then when started again would not n. then went to bri g it in and nothing worked correct. the speedometer was at 0 and it was scary! the whole vehicle would not work right and when i brought it in they said it was a side sensor module and it was $735 to replace. my car is not that old. they said wetness could have got to it. we live in min edits. many cars get wet. that is absolutely crazy. they also told me they share sopose to be coming out with a recall and new boxes that cover these sensors. i will be expecting to be reimbursed when this becomes a recall which it defiantly needs to be! i paid a lot of money for this vehicle. the price of mine should be on this!

Shift to park error message when gear shift is in park and vehicle is turned off. the auxiliary power stays on (radio and usb) and will not let me lock the doors. this happens nearly every day. must restart the vehicle and put into gear then into park multiple times.

I purchased a new 2017 gmc acadia on december 14th 2017. on october 11th 2018, my acadia was rendered completely disabled by a what has been described by the dealership as a " dead battery" i was almost locked in the vehicle because the entire electrical system failed and the electronic locks would not operate. there was no previous indication, notification or warning by the vehicle and monitoring service or of an impending battery failure obviously, a 10 month old battery in a new car should not be completely drained after only 10 months of ownership ( leading me to believe there may be more at play than just a bad battery). had this happened anywhere else besides my driveway, it would have been a major issue. the vehicle was then towed to the nearest authorized gmc repair facility. the dealership ran diagnostic tests of the electrical system and found nothing wrong, but this still leaves me with doubts about the reliability of the vehicle and integrity of the electrical system.

When the vehicle is parked after driving and the placed in park, the vehicle fails to recognize that is in "park". this causes the interior accessories to remain running as though the vehicle is running even when the engine is off. this happens when the vehicle is stationary. from review of information, this is a know manufacturing defect from gm. when gm was contacted to have repaired in the vehicle we were informed that they cannot warranty their vehicles forever and it would not be repaired. this seems to be an inappropriate response for an issue that is not a warranty item but has been published as a manufacturing defect.

Shift to park stays on when placing my vehicle into park. this does not allow the electronics to shut off indefinitely resulting in a dead battery. gmc has stated that this is not a recall and that because i am out of my warranty this is not covered. after reading multiple forums there are hundred of people with this same issue from 100miles to 60k+ and gm has refused to make this a recall. someone did state that they got their shift assembly replaced and it fixed the problem. very disappointed with gm and not standing behind an issue that is clearly a defect from the manufacture. they also are having the same issues with cadillac stemming form their tennessee plant. buyers beware!

Vehicle had multiple (more than 2) warning lights flashing on and off, while rpm and mph needle would fluctuate simultaneously. this would happen while in the driveway and also while in motion. vehicle would not accelerate with accelerator pedal fully pressed, especially on an incline. while this was occurring i had to exit the highway and turn around in an adjacent subdivision. i could not get out of the way of a car in the neighborhood because i was trying to go forward on the street due to a slight incline. it would also jerk into gear when moving from reverse and drive. had this happened in a traffic intersection, it would have been deadly. this car is unsafe. after 6 months of being 'fixed' it has started happening again. the dealership has had the vehicle for a week this time without being able to fix it. the last time it was at the dealership for around 10 days.

Tl* the contact owns a 2017 gmc acadia. the contact stated that the vehicle was shifted into the off position with the engine depowered however, the electrical functions continue to function. the brake assist and steering assist warning indicators illuminated. discovery chevrolet buick gmc (2705 us-421, boone, nc) where the failure could not be diagnosed. the failure was not repaired however, the gmc manufacturer informed the technicians to tighten the tensioner cable to temporarily repair the vehicle. the manufacturer was notified of the failure. the failure mileage was approximately 16,000.kh

Service side detection system warning came on last year. i took it to dealership since i have extended warranty to cover problems like this. dealership refused to fix because i had taken a light hit to the rear fender area where the sensor is on 02/06/2016. friends told me this is a major problem with these vehicles so i looked online and was appalled at the complaints! i am retired and on a fixed income and can't afford the $1,600 or more right now. as a senior this was a reason i purchased this vehicle. now that it does not work i have to be extra careful with blind spots! this warning came on and function stopped working when car was turned on.

When you put the shifter into the park position and you try to turn off the vehicle with the start/stop button an on dash error code of 'shift to park' appears even though the vehicle is clearly in park. you are not able to turn the vehicle off. it beeps incessantly, the battery remains on and the doors do not want to lock. gmc has been made aware of the issue by hundreds of 2017 acadia owners however their engineers have not found a solution. this defect is forcing me to turn the engine on and off multiple times, trying putting the car in reverse and then shifting back in drive, wiggling the shifter, opening the rear passenger doors and repeating any and all of these processes until it eventually turns off the shift to park message and allows the vehicle to shut down (or if you can confuse the electrical panel and have another message pop up to override it, such as the one that says 'check rear passenger seat". i do not know if my car is ever truly in gear or not. i'm afraid that it might cause a dangerous situation where my vehicle rolls thinking it is not in park or the battery dies unexpectedly or the vehicle is stolen because it will not shut off or the doors will not lock. i bought this vehicle brand new and this started occurring at around 15,000 miles and is a highly reported problem that necessitates a recall fix for safety.

When the car is intentionally stopped and shifted into park, the dashboard shows a warning that the car is not in park. it requires moving the gear shift in and out of drive until the electronics recognize the car is in park. until then, all the car electronics remain active. when the door is opened an alarm sounds because the electronics thinks the car is not in park. the gmc dealership is aware of the problem but claims the parts needed to fix it are unavailable. this first happened over a year ago, but the dealership couldn't recreate the problem. it has started happening again, and the dealership has recognized the problem, but claims the parts are unavailable.

Horn is almost impossible use especially in an emergency situation. very hard to activate and takes 2 hands to get it to work. dealer claims no fix but multiple complaints. this is ongoing since vehicle was purchased in july 2017

After releasing electronic parking brake, the service parking brake light comes on and the parking brake light flashes. parking brake is no longer operational.

2017 gmc acadia denali. consumer writes in regards to mechanical issues. *ld the consumer stated the vehicle was running very loud and rough upon initial start up. the check engine and service electric parking brake light illuminated. service parking brake appeared on the dic, a message stating awd off appeared in the dic. and a notification for an issue with the emissions system also appeared. *js

Hello, is anyone investigating the horn problem with the 2017 gmc acadia that is well-documented in many places, including your own nhtsa website? the same problem likely exists with the 2018 models as well. this has been an issue since the '17 models were first introduced in 2016 and gm says they can't fix it. a safety issue and they can't fix it? this vehicle needs to be recalled before someone gets hurt, or worse. gm dealers are still selling these vehicles to uninformed buyers and they will not fix the problem.

Tl* the contact owns a 2017 gmc acadia. while operating the vehicle, smoke and sparks suddenly appeared from the vents inside the vehicle. the driver stopped the vehicle and called the fire department. when the fire department arrived, flames were present under the hood on the driver's side. the flames were extinguished and the cause of the fire was investigated. it was determined that the electronic module casing had blown off and the module had caught fire due to an electrical short. a police report was filed. the manufacturer was notified of the failure. the dealer was not notified. the failure mileage was unknown. *tt *tr

Horn button is very difficult to activate. takes 2 hands to depres...safety concern.

Two month old 2017 gmc acadia denali fwd. horn is nearly impossible to operate under any conditions. it takes two hands to make it work and only with excessive force, and in only one spot on the steering wheel. recently i was alongside of a big rig and the driver did not see me. he started to maneuver into my lane and the acadia horn would not work. nearly caused a major accident on a 70mph posted highway. the dealer knows about the problem and it has been reported to gmc and nhtsa by many 2017 gmc acadia owners. to date, gmc offers no fix for this problem. a recall or at least a repair bulletin needs to be issued before someone gets hurt, or worse. this is a widespread safety issue with the 2017 gmc acadia, and possibly the 2018 gmc acadia if the same horn activation hardware is used in the newer model.

Stopped at an intersection for a red light, upon green light, accelerator tapped to enter intersection and forward collision braking system applied brakes. nothing was in front of vehicle at time of forward collision braking system application. tapped accelerator again and vehicle hesitated but slowly accelerated to normal speeds. the vehicle behind at the time barely stopped which would have rear-ended my vehicle and caused a chain reaction. continued on to work, carefully applying accelerator after each stop. very scary for the vehicle to stop in the middle of a busy intersection with traffic behind and not immediately allowing driver to control acceleration.

The vehicle has had ongoing issues since it was purchased in june of 2017. the 'shift to park' problem had to be fixed twice, the emergency braking system engages itself for no apparent reason which has almost caused several accidents, the horn does not work when needed in emergency situations, the headlights are so dim it's dangerous, the battery has drained and left my wife stranded 4 times, and the vehicle has a very rough idle and it almost stalls out. i attempted to work with gm to have them take the car back early (lease) and the request was recently denied. this is my 3rd acadia and it by far is the most dangerous car i have ever driven. i am now reading about a fuel pump problem that could cause the vehicle to catch on fire, a driveshaft that may separate while driving, and a faulty braking system that could cause the vehicle to lose all braking capability. i do not feel safe having my family in this car and i am requesting your assistance to help me work with gm on a resolution. i entered the date that the vehicle first started to have issues, there have been over 20 incidents over a 2.5 year period causing a safety issue or leaving my wife and children stranded.

While driving, the horn failed to activate when depressed. subsequently, when parked, the horn required excessive pressure to activate (two hands). took the vehicle to the dealer, the service advisor tried the horn and agreed that it required excessive force to blow the horn. p/n 84050792 was replaced with no change in the pressure required to blow the horn. research shows multiple complaints regarding the same issue.