2017 GMC Acadia

Twice the side detection system failed due to corroded wiring under the bumper which then led into the electrical system failing on side air bag detection/blind zone detection/traction control system/display monitor and blinkers all failing to the point of vehicle not starting. The safety is these features failed which were both safety and stability. Risks occur in becoming stranded and the problem was first noted by dealer to be a poor battery. GM pushed out a "Special Coverage Adjustment' to have the wiring/module kit to be ordered and repaired by a dealer for no charge. Stipulations was within 6 yrs or 80,000 from 'placed in use'. Warning lamps occurred after the corrosion was too far along to be rectified and after the 6n yrs off the lot. Manufacture GM issued the special adjustment but dealership did not provide notice beyond letter at point of failure in vehicle so that twice I have had to contend with this issue and pay in full for the service work performed. The second fail of this wiring system and module was within 3 years of first replacement.

While driving get notice lane departure not working and thermostat registered zero, when code scanned, states low thermostat temp and able to reset with code reader. Will reoccur in minters to days later. This is an electrical issue to to the ability to reset with a code scan tool, but also a safety issue since it also effects the electrical safety ability associated with the sensor.

Side Detection Malfunction Message on Dash. Blind spot and cross traffic alerts not working. Vehicle has a blind spot on the driver's side and without this alert, I have found that vehicles appear to not be there but actually which causes issues with merging traffic and lane changes leading to potential collisions. Dealer replaced the side detection modules under warranty and special policy because of water intrusion into the modules. This exact same symptoms and parts have occurred and replaced 5 times, and a 6th is currently needed. All work was performed exclusively at GMAC dealer and vehicle is accident free. GM issued a special policy that covered this specific repair, and the vehicle now needs to it done a 6th time and GM has refused to assist saying vehicle is out of special policy. I have requested that GM inspect the vehicle but no response. I contacted GM and they declined assistance. I currently have the feature turned off because it was providing an error message on the dash and false alerts. I don't believe that GM actually has a long-term fix for this safety issue. Original Set of Sensors - 0 Miles - 2nd set of sensors - 5,894 Miles - 2/2018 3rd set of sensors - 17,078 Miles - 5/2019 4th set of sensors - 32,546 Miles - 4/2021 5th set of sensors - 45,463 Miles - 3/2023 6th set of sensors - 64,335 Miles - 3/2025

While driving at highway speeds, a warning appeared on the Driver Information Center (DIC): “Steering Assist is Reduced – Drive with Care.” Simultaneously, the temperature gauge was stuck on “C,” the radiator cooling fan ran at high speed, and the air conditioning stopped blowing cold air. After researching the issue, I discovered that these symptoms are commonly linked to a failing thermostat—a known and widespread problem with GM’s 3.6L LGX engine. Unfortunately, replacing the thermostat on this engine is not a simple repair, often requiring significant labor and cost. The most concerning aspect is the loss of steering assist, which poses a serious safety risk, especially at highway speeds. Given the frequency of this issue across many GM vehicles, it’s clear that this is a defective part and not an isolated incident. GM should take responsibility and cover the cost of repairs for affected vehicles. This is not just a mechanical failure—it’s a safety hazard that deserves immediate attention. I'm attaching a picture of the message as well a paid repair invoice from the work the dealer performed to replace the thermostat on my vehicle.

Went to Burt Watson the end of May. Paid $250 to diagnose 3 problems. Trans was intermittently kicking into passing gear when starting from a stop position, a service engine light and passenger side blind spot warning would come on when nothing was there and other times wouldn't recognize a vehicle was there. Around the middle of July the battery began draining intermittently leaving me stranded at night away from home. The rear defogger began turning itself on and couldn't be shut off and was very hot to the touch. The drivers seat moved all the way forward on its own pressing me into the steering wheel and dash while I was driving at highway speed. Forcing me to change 2 lanes of traffic trying to get to the side of the road.I was told by the service manager that the rear fuse block had shorted out do to water intrusion from bad drain ports. This was replaced, and then I was told something else was draining the battery. And this was "one " of the things not covered by warranty. There is a service bulletin stating that there may be pinholes at the top of the a-pillars and d-pillars yet the dealership stated a new windshield was needed. There are several service bulletins indicating that such leaks can reek havoc on the electronics. The dealership has changed their estimate several times with still no solution in site. The vehicle has been sitting at the dealership since July. At one point it was communicated to me that GM would assist in the cost of the repairs when and if job was ever completed.They are now stating the cost to repair the issues is $5500.00 and is my responsibility.

I bought my vehicle in 2020. In 2019, there was a special coverage notice (N172097060) with part repair because of known service side detection issues for water module intrusion. My understanding is this is due to the poor design and placement of the item in the rear of the vehicle that is known for getting water in it when driving, which then impacts the entire electronic system (not just service side detection). Beginning in spring 2023, I began to have these issues, starting with service side detection first. I then had other major electrical issues connected to this issue I believe are a safety concern. I have had very scary episodes at high speeds of my entire car electronic system shutting down, speedometer going to zero, gas going to empty, glitching and not starting multiple times. It got to the point my entire car was not drivable due to this issue - the dealer has a temporary fix on it to allow it to continue to be drivable until parts are in. The dealer has confirmed the issue I am experiencing is this safety special coverage issue from 2019. I contacted the dealer I bought my car from and they stated they did the special coverage fix in 2019. They confirm this issue is occurring again. However, they claim that because it was fixed in 2019, I am responsible for paying and fixing it this time around. The issue was not resolved and I believe this is a huge safety issue that should be a recall, not just a special coverage. It was very scary driving on a highway with my children in tow and having my entire system go out at a high speed. It has been inconvenient, parts are supposedly on backorder and being told it's my responsibility to cover it when it's a known issue. I have also found online many other owners having this issue. The special coverage did not fix it if water continues to get into the module and continues to generate these issues again. I appreciate any assistance on this matter and thank you for your time!

I get a "service side detection" on my DIC. It used to work occasionally, now it no longer works. The sensors lights do come on when the "service side detection" shows up. Sometimes this alerts comes and goes and sometimes it stays until I push a button, in which it just reappears later. Through research I found this document sent out from GM: https://static.nhtsa.gov/odi/tsbs/2019/MC-10160088-9999.pdf GLOBAL SAFETY FIELD INVESTIGATIONS DCS5011 URGENT - DISTRIBUTE IMMEDIATELY Subject: N172097060 - Special Coverage Side Blind Zone Alert Module Water Intrusion General Motors is releasing Special Coverage N172097060 today. The total number of U.S. vehicles involved is approximately 131,652. Please see the attached bulletin for details. Condition: Some 2013-2016 model year Chevrolet Cruze, 2014-2015 Chevrolet Impala and 2013-2017 GMC Acadia vehicles, may have a condition where the Side Blind Zone Alert (SBZA) modules may fail or malfunction due to water intrusion. The driver may experience a side blind zone alert message displayed on the driver instrument cluster (DIC). If this message is ignored, the condition could result in the corruption of LS GMLAN that may result in the loss of some driver interface functions such as cluster, infotainment / displays, chime, and passenger presence detection (passenger airbag could be suppressed, w/airbag TT, DIC message). MAJOR SAFETY CONCERN!! Special Coverage Adjustment: This special coverage covers the condition described above for a period of 6 years or 80,000 miles (130,000 km) whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. CORRECTION: Dealers are to repair the vehicle by ordering and installing the appropriate service kit. The service kit will contain all of the components required to complete the repair. The repairs will be made at no charge to the customer. PROBLEM: MY CAR HAS A BRANDED TITLE SO THEY WILL NOT FIX IT. IF IT IS A RECALL, THEY HAVE TO.

Service side detection system warning is on and upon investigation and diagnostics it has been widely reported as a common issue that GMC only chose to address for a select number of vehicles. I have 93k miles and there is a service agreement to 80k. Others have indicated that it not fixed it can send bad signals to circuit board causing battery failure, information system failure, dash light failure and headlight failure making this a safety issue is something like this occurs in the dark. As a result I am concerned for my safety and am frustrated that GMC is not required to fix this issue.