Used 2021 Mercedes-Benz GLS-Class Consumer Reviews
Used GLS-Class for sale
We have a limited number of reviews for the 2021 GLS-Class, so we've included reviews for other years of the GLS-Class since its last redesign.
Electrical gremlins
Bill, 06/30/2021
2021 Mercedes-Benz GLS-Class GLS 450 4MATIC 4dr SUV AWD (3.0L 6cyl Turbo gas/electric mild hybrid 9A)
38 of 42 people found this review helpful
We recently bought a 2021 GLS 450. The warning systems work some of the time, but not consistently. We had all the driver assist features malfunction so into the dealer. They found a severed sensor wire which Mercedes said normally wouldn't be covered (The car had 1800 miles on it), but they decided to cover it anyway. Sometimes we get an audible parking assist warning sometimes we don't. My wife managed to back it into another car and never got a warning. I understand it was her fault for relying on the back up warnings, but it is so unreliable that it is really useless. We have had multiple cars with parking assist and never had any problems. It was inspected after the fender bender by the dealer , but they couldn't find any issues. They gave us Mercedes Benz USA contact info. We have collected multiple videos of the system not working to show the Mercedes rep. When we called MB USA, they were confused as to why we were calling them and told us that there are plenty of warnings not to trust the system. Great! Does that mean we shouldn't trust the adaptive cruise or any of the lane assist features? What is the point of having these systems if they don't work. Add in to those issues the incredibly loud drivetrain (also checked by dealer, but told it was normal due to high pressure system like a diesel), I can't recommend this car. It's nice when it works, but no better than competing vehicles. Stay away.
- Safety
- Technology
- Performance
- Interior
- Comfort
- Reliability
- Value
Not good
Captain, 06/20/2021
updated 12/21/2022
2021 Mercedes-Benz GLS-Class GLS 450 4MATIC 4dr SUV AWD (3.0L 6cyl Turbo gas/electric mild hybrid 9A)
58 of 65 people found this review helpful
Purchased new 2021 GLS 450 $92000, the SUV is in the shop more than in my garage. Major computer dash problems. After 4 attempts, they can’t solve the problems. MY SUGGESTION!! Stay away from the GLS 450 SUV.
- Safety
- Technology
- Performance
- Interior
- Comfort
- Reliability
- Value
2021 Mercedes-Benz GLS-Class for sale near you
Showing 3 of 18 listings
- AMG GLS 63 4dr SUVMSRP: $78,990161 mi away
- GLS 450 4MATIC 4dr SUVMSRP: $42,990115 mi away
- AMG GLS 63 4dr SUVMSRP: $62,9997 mi away
See all 18 listings
Big Disappointment!!
dawdaw56, 04/25/2022
2020 Mercedes-Benz GLS-Class GLS 450 4MATIC 4dr SUV AWD (3.0L 6cyl Turbo gas/electric mild hybrid 9A)
16 of 17 people found this review helpful
This is my 2nd MB SUV…first was 2016 GLE 350 - I loved this vehicle. Now 2020 GLS 450 has been a very disappointing experience from dealership and vehicle performance. I have 28806 Miles and am waiting on a tow!!! Next vehicle will not be an MB. Today 45V battery not charging and upon searching; I see this has been an issue for many owners. Do yourself a favor - DON’T BUY IT! Now to figure out what I will be buying next; I can assure you it won’t be a Mercedes!
- Safety
- Technology
- Performance
- Interior
- Comfort
- Reliability
- Value
12th time in the shop in 10 months since purchase
Roya G, 10/05/2021
2021 Mercedes-Benz GLS-Class AMG GLS 63 4dr SUV AWD (4.0L 8cyl Twincharger gas/electric mild hybrid 9A)
43 of 49 people found this review helpful
I bought a 2021 GLS 63 on 1/2/2021. Within 48 hours they sensors misfired and the car was at the service center. It took them 4 tries to fix it with the last try taking them 28 days. I got the car back and the brakes began sounding. It took 7 tries at the service center and they can’t get it right. Today the car stopped working entirely and though the battery functions worked the started wouldn’t kick in. It’s my 2nd tow, 12th service and I will never drive it again. Lemon law all the way.
Dream Car
Flyfanatic , 08/19/2020
updated 02/22/2022
2020 Mercedes-Benz GLS-Class GLS 450 4MATIC 4dr SUV AWD (3.0L 6cyl Turbo gas/electric mild hybrid 9A)
12 of 13 people found this review helpful
The GLS is beautiful, fun to drive, extremely comfortable, and solid. I only wish the running board was 1 or 2 inches wider. As it is it makes ingress and egress difficult.
- Safety
- Technology
- Performance
- Interior
- Comfort
- Reliability
- Value