There are 2 owner-reported speed control & cruise complaints for the 2023 Mercedes-Benz GLE-Classin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
When driving on an interstate going 55-70 mph and the cruise in on, the car cruise flashes randomly down to 15 or 20 mph and the car severely brakes. This is NOT because someone is in front of us on the highway. It does it when no one is in front of us. Sometimes there are cars behind us and this type of severe breaking is very dangerous when traveling at 70 mph. Cars behind us have had to slam on their breaks to avoid rear-ending us. I have taken the vehicle to Morgantown Mercedes Benz twice complaining about this issue. They cannot find the problem.
First incident on I5 around exit 186 9 car was cruise control was on. Speed was set at 65. Car was accelerating from 60 to 65 but all of a sudden it slams on the brakes when no car was in front from 60ish to 45. Almost caused the car in the back to hit us. Multiple incident of cruise control on and while automatic lane change it would hit the breaks mid lane change when no other car is present ( especially when the interstate is curving). Going i5 north express lane. Cruise control on there was dotted lines for left exit. Car would was pushed heavily by lane keep to the left. But the intent was to continue on i5 N. The push was a lot stronger than normal. Almost crashed into meridian
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026