2020 GMC Acadia Problems and Top Complaints – Is Your Car A Lemon?

Electrical system, fuel system and service brakes issues among the top complaints received by the NHTSA from vehicle owners

The 2020 GMC Acadia is supposed to be the higher-end model related to the Chevy Traverse. This upgraded model is designed to provide more technology, better comfort and helps owners to “travel safely,” according to the automaker. However, the defective electrical system, malfunctioning fuel system and dangerous brakes make that nearly impossible.

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Problems with the Electrical System

A properly running electrical system creates a seamless operation from the time the engine is started until the owner reaches their destination. Yet, with the Acadia, there are too many complaints that discuss trouble with this vital system.

Here is one from Cars.com. “The infotainment unit still has problems. Mine was leased on 1/18/20 and to date (today is 2/14/20) it has been in the shop 4x for issues surrounding the infotainment unit. First it had no sound when using remote start, then the cameras went out, then a fender popped loose, and the cause of the cameras going out was a frayed coax cable. Great build quality GM! The no sound issue they couldn’t figure out so I got a new infotainment unit installed. Out of the near month of having this vehicle, I have only had the chance to drive it for maybe a week.”

Beyond the infotainment system, GMC acknowledges other electrical system problems. Service Bulletin #070604025M also talks about various clicking and ticking noises coming from the vehicle. However, GMC claims that these sounds are a “normal characteristic.” It must come as a surprise to purchasers when they first drive their GMC SUV only to find out that it comes with some free noises that were unexpected.

Problems with the Fuel System

The Acadia’s fuel system is supposed to accurately supply the engine with the gasoline needed to get from Point A to Point B, but there are some major defects with the operation.

Read this NHTSA complaint. “Driving along no issues, car says 60 miles to empty no fuel warning light or anything, when car just suddenly loses power, was able to get to side of road. Told me to restart engine and it wouldn’t fire back up. Put a gallon of gas in and it fired back up. Owned car for almost 3 weeks, can’t believe there was no indication fuel was apparently that low. 60 miles to empty should have been able to finish the 2 miles I had on my drive to work and to get gas.”

Beyond the fuel system indicator, there are even larger problems occurring with the Acadia. Service Bulletin #16NA383 states that an updated fuel injection cleaner kit is needed to decarbonize the intake valves to correct a rough idle, trouble with starting, an extended cranking situation and misfire. The automaker also goes on to tell customers that they should use better fuels to prevent these problems. So, not only do they have to pay a premium price to get behind the wheel, but it appears that they have to spend more at the pump too, just to fix GMC’s problems.

Problems with the Service Brakes

The brakes of a vehicle are one of the most essential safety features needed. Yet, the Acadia is struggling to get the basics down.

Another NHTSA complaint says, “The contact owns a 2020 GMC Acadia. The contact stated that while driving at 15 mph, without warning the parking brake engaged independently. The contact manually released the parking brake and the vehicle operated as intended. [Dealer] was contacted and informed of the failure. An appointment was scheduled to have the vehicle diagnosed which was still pending. The vehicle was not repaired. The manufacturer was made aware of the failure, but no further assistance was provided. The failure mileage was approximately 6,276.”

If an accident were to occur because of this failure, owners might be in trouble. NHTSA Campaign Number 20V446000 states that some vehicles might have a malfunctioning Roof-Rail Air Bag inflator. If it fails, this vital air bag might not deploy in an accident, leaving occupants at risk. Considering the Acadia is appealing to customers by claiming to help them “travel safely,” one would think that the company would make sure everything works right first.

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Brian Jones

About the Author:

Brian Jones spent more than 20 years working as an ASE Certified Master Tech and Parts Specialist at multiple dealerships. Brian has become an authority in the industry, traveling across the country to consult for car dealerships and contributing his expertise as a writer for several major automotive publications. In his spare time, Brian enjoys working on pickup trucks, muscle cars, Jeeps and anything related to motorsports.

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