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Transmission – Acadia Shift To Park Warning
When you park your car, you’re ready to exit and go about your business. But the 2017 GMC Acadia doesn’t understand that. The vehicle’s onboard computer fails to recognize when the transmission has been put in park. As a result, it keeps all of the interior electronics running – the dashboard, radio, etc.
On Edmunds.com, one owner complains, “2017 Acadia. Shift to park problem that does not allow the car electronics to turn off. Must restart several times and wiggle the stick forward and backward to eventually correct. GM knows the problem and does nothing to correct saying they are working on what to do. No concern for the continuous problem the customer must be frustrated with on a daily basis. No effort to replace the shifting mechanisms. So just wait and live with it. Unacceptable. Do not buy this car. Most all other cars stick shift mechanisms work properly.”
General motors has released a technical service bulletin (TSB) regarding the problem. In the TSB (PIT5616A), the automaker states, “Condition: Vehicle displays Shift to Park message on DIC when in Park. Vehicle may not shut off when put in Park or may not start.”
So, what’s the cause and subsequent fix? Right now, GM doesn’t have one (very reassuring). It lists the cause of the problem as “unknown at this time.”
Here are some actual complaints logged with the NHTSA about the 2017 GMC Acadia Transmission Problems
A MESSAGE SHIFT TO PARK KEPT APPEARING WHEN THE CAR WAS IN PARK AND SHUT OFF. THEN I PUT THE CAR IN REVERSE AND THE ENTIRE CARE LOCKED UP. (A MESSAGE FROM GMC -GENERAL MOTORS LLC (GM) IS RECALLING CERTAIN 2018 CHEVROLET EQUINOX AND GMC TERRAIN VEHICLES AND 2017-2018 GMC ACADIA VEHICLES. THE RIGHT FRONT INTERMEDIATE DRIVESHAFT MAY FRACTURE AND SEPARATE WHILE DRIVING.)
WHEN THE VEHICLE IS IN PARK AND YOU TRY TO TURN IT OFF 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. I TOOK THE VEHICLE IN FOR SERVICE ON 6/4/18 AND WAS TOLD THAT GM IS AWARE OF THE ISSUE HOWEVER THEIR ENGINEERS HAVE NOT FOUND A SOLUTION. THIS CURRENTLY IS FORCING ME RESTART THE ENGINE, PUT MY CAR IN REVERSE, SHIFT BACK IN DRIVE, TRY RE PARKING AND TURNING OFF AGAIN REPEATING THE PROCESS UNTIL IT EVENTUALLY TURNS OFF. I DO NOT KNOW IF MY CAR IS TRULY IN GEAR OR NOT. I’M AFRAID THAT IT MIGHT CAUSE A DANGEROUS SITUATION.
MY 2017 GMC ACADIA 6 CYLINDER AWD HAS EXCESSIVE VIBRATIONS THAT OCCUR AT 1400-1600 RPM AND AT VARIOUS SPEEDS.IT SEEMS LIKE THE TRANSMISSION REFUSES TO SHIFT AND IT LASTS FOR UP TO A QUARTER MILE.VIBRATION IS MOST PRONOUNCED AT SPEEDS OF 55-60 MPH THE DEALER DIAGNOSIS SAYS IT IS FUNCTIONING NORMAL. THE STRUTS WERE REPLACE AT1390 MILES AND MOTOR MOUNTS ADJUSTED, PROBLEM REMAINS, AUTO BROUGHT TO DEALER FOR RECALL AS PER BULLETIN 17109 BUT IT STILL VIBRATES EXCESSIVELY. THE LEAD MECHANIC AT THE DEALERSHIP SAID THE AUTO ADJUSTS TO THE DRIVER AND SAID THE VIBRATIONS WILL STOP AT ABOUT 2500 MILES. THE CAR NOW HAS 2900 MILES AND IT STILL FEELS LIKE THE TRANSMISSION IS GOING TO FAIL. THE VIBRATION IS UNCOMFORTABLE AND ALTHOUGH THE DEALERSHIP SAID THE CAR IS SAFE IT DOES NOT FEEL SO.IT SEEMS IMPOSSIBLE FOR A VEHICLE TO BE FUNCTIONING PROPERLY WITH THIS CONTINUAL ERRATIC VIBRATIONS..
Today’s vehicles have dozens of computers and miles of wiring onboard. With such complexity, electrical gremlins are bound to pop up when vehicles aren’t engineered to perfection. Case in point: the 2017 GMC Acadia. Although the SUV is only about a year old, it’s electronics are already on the fritz.
Of all the digital devices found on the vehicle, so far, the electronic parking brake seems to be one of the most problematic.
One owner, from Great Falls, MT, wrote into the NHTSA website, “After releasing electronic parking brake, the service parking brake light comes on and the parking brake light flashes. Parking brake is no longer operational.”
GM has released a TSB (17-NA-002) to address the concern. It reads:
“Some customers may comment on one or more of the following conditions: amber electric park brake light is on, amber electric park brake light is flashing, parking brake is inoperable.The technician may find the following DTCs set:C028F 04, C1586 04.”
According to the automaker, the problem is software in the parking brake’s computer (referred to as a module). Re-flashing the unit is supposed to cure the concern.
Another problem area is the horn. According to owners, it takes an excessive amount of effort to depress and activate.
On the Edmunds website, an owner complains, “Horn does not operate with normal driver pressure. Requires two hands. Try that when you NEED it. A definite safety issue that the dealer recognized but could not fix. No fix from GM. Needs to be recalled. Other Denalis on the lot were the same, and this problem has been reported by several others and also to the NHTSA.”
There is a supposed fix now– GM has a TSB (17-NA-367) regarding this issue. The document states, “Some customers may comment on the high effort required to sound the horn.”
Dealers have been instructed to replace the steering wheel wiring harness with an updated unit to correct the concern.
Here are some actual complaints logged with the NHTSA about the 2017 GMC Acadia Electrical Problems
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.
NEW 2017 GMC ACADIA DENALI FWD. LESS THAN 100 MILES. HORN DOES NOT OPERATE WITH NORMAL DRIVER PRESSURE UNDER ANY CONDITIONS. REQUIRES EXCESSIVE PRESSURE TO OPERATE, REQUIRING USING BOTH HANDS AND THEN ONLY IN ONE SPOT. GM IS AWARE OF THE PROBLEM AND HAS DONE NOTHING TO CORRECT, CALLING IT IS OPERATING “AS DESIGNED”. THE DESIGN IS FLAWED AND GM FAILS TO ADMIT IT AND TAKE CORRECTIVE ACTION. IT IS PAST TIME THAT THIS PROBLEM IS FIXED, AS IT HAS BEEN REPORTED MANY TIMES BY OTHER GMC ACADIA OWNERS AND IS ON RECORD WITH THE NHTSA. DOES SOMEONE HAVE TO BE KILLED BEFORE A FIX IS RELEASED? DOES SOMEONE HAVE TO BE KILLED BEFORE THE NHTSA ACTS ON THIS POTENTIALLY LETHAL DEFECT?
AFTER RELEASING ELECTRONIC PARKING BRAKE, THE SERVICE PARKING BRAKE LIGHT COMES ON AND THE PARKING BRAKE LIGHT FLASHES. PARKING BRAKE IS NO LONGER OPERATIONAL.
Functional headlights are an important feature for a vehicle to have. Yet, many owners complain the 2017 Acadia’s lamps either aren’t bright enough or don’t work at all.
An owner from Baldwinsville, NY, says on the NHTSA website, “Headlights are dim to the point of being dangerous. Dealer confirms that all 2017 Acadia are like this. This is by no means the first complaint about this issue. An accident waiting to happen.”
Another, on Edmunds, states, “Driving at night the headlights are not bright, need the fog lights to help, and you have to always turn them on. I’m try to get out of this lease now. Will never by a GM product again.”
So far, there has been no TSB or recall from GM addressing the headlight concern.
Here are some actual complaints logged with the NHTSA about the 2017 GMC Acadia Exterior Lighting Problems
HEADLIGHTS ARE DIM TO THE POINT OF BEING DANGEROUS. DEALER CONFIRMS THAT ALL 2017 ACADIA ARE LIKE THIS. THIS IS BY NO MEANS THE FIRST COMPLAINT ABOUT THIS ISSUE. AN ACCIDENT WAITING TO HAPPEN.
AS MUCH AS I LOVE THE VEHICLE AS A WHOLE, IT UNFORTUNATELY HAS THE WORST HEADLIGHTS I HAVE EXPERIENCED IN ANY VEHICLE THAT I HAVE EVER DRIVEN. AS SOMEONE WHO HAS PERFECT VISION, I OFTEN FIND MYSELF SQUINTING TO SEE THE ROAD AHEAD OF ME AND VARIOUS SIGNS. IT HAS GOTTEN TO THE POINT WHERE I HAVE RESORTED TO DRIVING WITH MY HIGH BEAMS ON, JUST SO I CAN SEE WHERE I’M GOING IN CITY STREETS, HIGHWAY DRIVING, AND MAKING TURNS. I’VE NEVER HAD THIS ISSUE WITH ANY OTHER VEHICLE THAT I HAVE DRIVEN AND THE UNFORTUNATE THING IS THAT MY FATHER HAS NEARLY THE SAME IDENTICAL VEHICLE AS ME AND IS EQUALLY DISSATISFIED WITH THE HEADLIGHTS. I WOULD CONSIDER THESE AS DANGEROUS AS ANYTHING TO DRIVER, PEDESTRIAN, AND PROPERTY RELATED SAFETY. I WOULD STRONGLY URGE THAT IF GM DOES NOT STEP UP AND CORRECT THIS DANGEROUS OBSTACLE TO MY LIFE, THEN I WOULD STRONGLY URGE AN INVESTIGATION AND AN IMMEDIATE RECALL OF THIS VEHICLE BY THIS ORGANIZATION
I ALMOST HIT A PEDESTRIAN WALKING ACROSS THE STREET IN FRONT OF MY CAR AT NIGHT AS I DID NOT SEE HIM DUE TO,THE HEADLIGHTS BEING TOTALLY INADEQUATE TO SEE IN FRONT OF THE CAR AND THE LIGHTS HAVE A BLIND SPOT WHEN ILLUMINATED AS THE DO NOT SHINE HIGH ENOUGH. THERE IS LIKE A SHELF EFFECT THAT WON’T ILLUMINATE ABOVE FOUR FEET OF THE ROAD IN FRONT OF YOU. ALSO THE LIGHT DOES NOT ILLUMINATE THE ROAD ENOUGH ESPECIALLY IN WET CONDITIONS. IT IS LIKE HAVING NO,LIGHT AT ALL.
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