2025 Mercedes Benz GLE 450E 4MATIC problems

UNKNOWN OR OTHER

When operating at 65-70 MPH on a limited access highway and encountering a rough road surface, the vehicle seemed to rather dramatically "skip" to the side. The GLE450e moved laterally while maintaining the intended forward direction. During two of these events the vehicle departed the marked lane and in one of I had to immediately seize full manual control to avoid striking a vehicle in the adjacent lane. (In all events I was driving in the right lane.) This has occurred four times; three of the times adaptive cruise was set; one time not. In at least three of the cases the road appeared to have ripples in the asphalt. I am not sure of the road surface in the 4th case. Regardless, no "holes" were encountered. Notes: The date listed was the approximate first date of the described occurrence. This occurred in two states, OH and FL. There was less than 10,000 miles on the vehicle when the events occurred. A question: I wonder if the relatively great weight of the rear of the vehicle was a factor in these incidents. The battery is located rearward and the rear tires require unusually greater pressure -- much more than the front tires.

NHTSA complaint #11747726 — an unverified report by a vehicle owner.

SUSPENSION

When operating at 65-70 MPH on a limited access highway and encountering a rough road surface, the vehicle seemed to rather dramatically "skip" to the side. The GLE450e moved laterally while maintaining the intended forward direction. During two of these events the vehicle departed the marked lane and in one of I had to immediately seize full manual control to avoid striking a vehicle in the adjacent lane. (In all events I was driving in the right lane.) This has occurred four times; three of the times adaptive cruise was set; one time not. In at least three of the cases the road appeared to have ripples in the asphalt. I am not sure of the road surface in the 4th case. Regardless, no "holes" were encountered. Notes: The date listed was the approximate first date of the described occurrence. This occurred in two states, OH and FL. There was less than 10,000 miles on the vehicle when the events occurred. A question: I wonder if the relatively great weight of the rear of the vehicle was a factor in these incidents. The battery is located rearward and the rear tires require unusually greater pressure -- much more than the front tires.

NHTSA complaint #11747726 — an unverified report by a vehicle owner.

STEERING

Shortly after we took possession of the car, I noticed that the warning that I was not holding the steering wheel would light up when I was holding the wheel with both hands in the 10-2 position. Flipping my fingers while continuing to hold the steering wheel was sufficient to switch the warning off. Also I was frequently being advised that the steering assist was inoperative and that the stop and go assist was inoperative. On August 21, 2025 when I was driving in I95, the various warnings described above appeared on the screen. The hands warning sign would not go off although I was holding the wheel correctly. A warning chime began and then a message that the system was initiating an emergency stop. I accelerated briefly and the warning disappeared. On August 28, 2025 I took the car to the dealer for assessment. I was advised that the car required a software update (Invoice no. 118573). I picked the car up on September 2, 2025. The following morning I received a telephone call from Mercedes Benz advising me that “Germany” had indicated overnight that the steering wheel needed to be replaced and I would be advised when that was available. I took the car back on September 11 for the steering wheel to be replaced. The previously described problems recurred other than the warning that an emergency stop was being initiated and I took the car back on December 12, 2025. Another new steering wheel was fitted. The problems persisted and the car was taken back. On this occasion a software update was performed. In late March 2026 when I was driving an a busy two lane road, the typical problems recurred but flipping my fingers did not work and the initiating an emergency stop warning appeared. Acceleration was not an option and there was no immediate place for me to pull off. I removed both hands from the steering wheel and the warnings disappeared. I regard these two emergency stop warnings as representing a significant safety issue.

NHTSA complaint #11741555 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: WARNINGS

Shortly after we took possession of the car, I noticed that the warning that I was not holding the steering wheel would light up when I was holding the wheel with both hands in the 10-2 position. Flipping my fingers while continuing to hold the steering wheel was sufficient to switch the warning off. Also I was frequently being advised that the steering assist was inoperative and that the stop and go assist was inoperative. On August 21, 2025 when I was driving in I95, the various warnings described above appeared on the screen. The hands warning sign would not go off although I was holding the wheel correctly. A warning chime began and then a message that the system was initiating an emergency stop. I accelerated briefly and the warning disappeared. On August 28, 2025 I took the car to the dealer for assessment. I was advised that the car required a software update (Invoice no. 118573). I picked the car up on September 2, 2025. The following morning I received a telephone call from Mercedes Benz advising me that “Germany” had indicated overnight that the steering wheel needed to be replaced and I would be advised when that was available. I took the car back on September 11 for the steering wheel to be replaced. The previously described problems recurred other than the warning that an emergency stop was being initiated and I took the car back on December 12, 2025. Another new steering wheel was fitted. The problems persisted and the car was taken back. On this occasion a software update was performed. In late March 2026 when I was driving an a busy two lane road, the typical problems recurred but flipping my fingers did not work and the initiating an emergency stop warning appeared. Acceleration was not an option and there was no immediate place for me to pull off. I removed both hands from the steering wheel and the warnings disappeared. I regard these two emergency stop warnings as representing a significant safety issue.

NHTSA complaint #11741555 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

Shortly after we took possession of the car, I noticed that the warning that I was not holding the steering wheel would light up when I was holding the wheel with both hands in the 10-2 position. Flipping my fingers while continuing to hold the steering wheel was sufficient to switch the warning off. Also I was frequently being advised that the steering assist was inoperative and that the stop and go assist was inoperative. On August 21, 2025 when I was driving in I95, the various warnings described above appeared on the screen. The hands warning sign would not go off although I was holding the wheel correctly. A warning chime began and then a message that the system was initiating an emergency stop. I accelerated briefly and the warning disappeared. On August 28, 2025 I took the car to the dealer for assessment. I was advised that the car required a software update (Invoice no. 118573). I picked the car up on September 2, 2025. The following morning I received a telephone call from Mercedes Benz advising me that “Germany” had indicated overnight that the steering wheel needed to be replaced and I would be advised when that was available. I took the car back on September 11 for the steering wheel to be replaced. The previously described problems recurred other than the warning that an emergency stop was being initiated and I took the car back on December 12, 2025. Another new steering wheel was fitted. The problems persisted and the car was taken back. On this occasion a software update was performed. In late March 2026 when I was driving an a busy two lane road, the typical problems recurred but flipping my fingers did not work and the initiating an emergency stop warning appeared. Acceleration was not an option and there was no immediate place for me to pull off. I removed both hands from the steering wheel and the warnings disappeared. I regard these two emergency stop warnings as representing a significant safety issue.

NHTSA complaint #11741555 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

This has happened twice. They “fixed” it and returned it to me and it did it again. I was about to pull out into traffic, once on the interstate and another time on a 2 lane highway… right as I hit the gas to pull out the car lurches forward and dies. Comes to a complete stop. It won’t crank back up, it won’t go into neutral or drive or reverse. The electoral system goes crazy and all lights start going off. One car had to go in the median to avoid colliding with me. I’m waiting on a police report but this was so scary I’m terrified to drive my car. The first time 4 weeks ago they said total electrical failure and fixed it. I drove it another few weeks and it did it again. The cop told me that I could have killed aomeone because when it stopped it didn’t even roll. The break was locked. We couldn’t push it out of traffic. We had to call a wrecker.

NHTSA complaint #11718847 — an unverified report by a vehicle owner.

ENGINE

This has happened twice. They “fixed” it and returned it to me and it did it again. I was about to pull out into traffic, once on the interstate and another time on a 2 lane highway… right as I hit the gas to pull out the car lurches forward and dies. Comes to a complete stop. It won’t crank back up, it won’t go into neutral or drive or reverse. The electoral system goes crazy and all lights start going off. One car had to go in the median to avoid colliding with me. I’m waiting on a police report but this was so scary I’m terrified to drive my car. The first time 4 weeks ago they said total electrical failure and fixed it. I drove it another few weeks and it did it again. The cop told me that I could have killed aomeone because when it stopped it didn’t even roll. The break was locked. We couldn’t push it out of traffic. We had to call a wrecker.

NHTSA complaint #11718847 — an unverified report by a vehicle owner.

SERVICE BRAKES

This has happened twice. They “fixed” it and returned it to me and it did it again. I was about to pull out into traffic, once on the interstate and another time on a 2 lane highway… right as I hit the gas to pull out the car lurches forward and dies. Comes to a complete stop. It won’t crank back up, it won’t go into neutral or drive or reverse. The electoral system goes crazy and all lights start going off. One car had to go in the median to avoid colliding with me. I’m waiting on a police report but this was so scary I’m terrified to drive my car. The first time 4 weeks ago they said total electrical failure and fixed it. I drove it another few weeks and it did it again. The cop told me that I could have killed aomeone because when it stopped it didn’t even roll. The break was locked. We couldn’t push it out of traffic. We had to call a wrecker.

NHTSA complaint #11718847 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

While using adaptive cruise control, the car automatically applies brake in full force eventhough there is no object in front of the car. Almost cause couple accidents where there are cars behind me. This happened multiple times in one trip (500 miles trip)

NHTSA complaint #11658349 — an unverified report by a vehicle owner.

POWER TRAIN

When accelerating in hybrid mode, the vehicle loses power and forcefully reduces speed. A "Performance extremely limited" message appears on the driver console. Sometimes it goes into "turtle" mode, limiting performance until the car it is turned off. Sometimes the "check engine" light comes on, with or without the "turtle" light. This is a safety issue when you are trying to accelerate onto a highway and the car reduces speed, thus increasing the risk of being rear-ended in heavy traffic. There are times when the car loses power and there is no emergency lane to move into. The car has been taken to the dealership's service department multiple times and the issue has been confirmed. They tried updating the software but it did not resolve the issue. This occurred for the first time about 4 months after purchasing the new vehicle. It had 3500 miles on it. There are many reports of this happening to others. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11656939 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

When accelerating in hybrid mode, the vehicle loses power and forcefully reduces speed. A "Performance extremely limited" message appears on the driver console. Sometimes it goes into "turtle" mode, limiting performance until the car it is turned off. Sometimes the "check engine" light comes on, with or without the "turtle" light. This is a safety issue when you are trying to accelerate onto a highway and the car reduces speed, thus increasing the risk of being rear-ended in heavy traffic. There are times when the car loses power and there is no emergency lane to move into. The car has been taken to the dealership's service department multiple times and the issue has been confirmed. They tried updating the software but it did not resolve the issue. This occurred for the first time about 4 months after purchasing the new vehicle. It had 3500 miles on it. There are many reports of this happening to others. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11656939 — an unverified report by a vehicle owner.

FUEL/PROPULSION SYSTEM

When accelerating in hybrid mode, the vehicle loses power and forcefully reduces speed. A "Performance extremely limited" message appears on the driver console. Sometimes it goes into "turtle" mode, limiting performance until the car it is turned off. Sometimes the "check engine" light comes on, with or without the "turtle" light. This is a safety issue when you are trying to accelerate onto a highway and the car reduces speed, thus increasing the risk of being rear-ended in heavy traffic. There are times when the car loses power and there is no emergency lane to move into. The car has been taken to the dealership's service department multiple times and the issue has been confirmed. They tried updating the software but it did not resolve the issue. This occurred for the first time about 4 months after purchasing the new vehicle. It had 3500 miles on it. There are many reports of this happening to others. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11656939 — an unverified report by a vehicle owner.

POWER TRAIN

The vehicle loses power while driving and flashes "Performance Extremely Limited." We have had this happen in intersections and while getting on the highway almost causing an accident on more than one occasion. When this occurs the vehicle decelerates quickly, will not use the batter and basic functions like the air conditioning stop working.

NHTSA complaint #11656431 — an unverified report by a vehicle owner.

ENGINE

The vehicle loses power while driving and flashes "Performance Extremely Limited." We have had this happen in intersections and while getting on the highway almost causing an accident on more than one occasion. When this occurs the vehicle decelerates quickly, will not use the batter and basic functions like the air conditioning stop working.

NHTSA complaint #11656431 — an unverified report by a vehicle owner.

FUEL/PROPULSION SYSTEM

The vehicle loses power while driving and flashes "Performance Extremely Limited." We have had this happen in intersections and while getting on the highway almost causing an accident on more than one occasion. When this occurs the vehicle decelerates quickly, will not use the batter and basic functions like the air conditioning stop working.

NHTSA complaint #11656431 — an unverified report by a vehicle owner.

ENGINE

Coolant hose was rubbing on the drive shaft and at 4,931 miles the coolant hose failed and the vehicle lost all coolant from the system. Fortunately the hose failed after the car was driven into our garage and not on the open highway. We had just returned from a 1,000 mile trip to Nashville, TN from Winston-Salem, NC. This is a PHEV and the coolant also effects the temperature of the EV batteries. This was a improper installation of the coolant hose. I have attached a picture that I took of the hose showing the rubbing on the drives shaft. I have also included a copy of the repair to the car that is properly installed. The repair was done under warranty. The vehicle had to be towed and according to Mercedes service department was not drivable even though the EV battery was fully charged.

NHTSA complaint #11654267 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

GLE 450e Plug In-Hybrid. Car went into ‘Turtle Mode’ on Saturday March 8th for no known reason. Turtle Light and Check Engine warning lights came on and there was a warning message “Significant Reduction in Power”. My understanding this is a vehicle initiated precaution when something triggers the vehicle to go into reduced power mode. This all happened after the car had been driven on the highway for about 2.5 hours. It was running in gas engine mode since the battery power had been off for 1.5hrs. It was also about 30F in VT that day. The turtle mode came on as soon as we exited the highway. The vehicle was drivable, but there was almost no acceleration from 0-20mph. Once the car was above 25 mph and 2k RPM’s it could run 40-60mph but it had no brisk acceleration. When we stopped at lights, the poor acceleration continued all the way to our destination (so it ran 1.5 hours in Turtle Mode). But this is certainly a flow of traffic issue as the car pulls away from stops at a very slow and deliberate speed forcing other drivers to alter their driving. When we parked the car at our destination both the Turtle warning light and check engine light were still illuminated. Several hours later for our 4-hour return trip back from VT, when we started the car the check engine light was on but the Turtle warning indicator was off. The car appeared to run normally in ICE mode but we didn’t push it hard. Towards the end of our trip after we stopped for gas, the check engine light stayed off.

NHTSA complaint #11647506 — an unverified report by a vehicle owner.

ENGINE

GLE 450e Plug In-Hybrid. Car went into ‘Turtle Mode’ on Saturday March 8th for no known reason. Turtle Light and Check Engine warning lights came on and there was a warning message “Significant Reduction in Power”. My understanding this is a vehicle initiated precaution when something triggers the vehicle to go into reduced power mode. This all happened after the car had been driven on the highway for about 2.5 hours. It was running in gas engine mode since the battery power had been off for 1.5hrs. It was also about 30F in VT that day. The turtle mode came on as soon as we exited the highway. The vehicle was drivable, but there was almost no acceleration from 0-20mph. Once the car was above 25 mph and 2k RPM’s it could run 40-60mph but it had no brisk acceleration. When we stopped at lights, the poor acceleration continued all the way to our destination (so it ran 1.5 hours in Turtle Mode). But this is certainly a flow of traffic issue as the car pulls away from stops at a very slow and deliberate speed forcing other drivers to alter their driving. When we parked the car at our destination both the Turtle warning light and check engine light were still illuminated. Several hours later for our 4-hour return trip back from VT, when we started the car the check engine light was on but the Turtle warning indicator was off. The car appeared to run normally in ICE mode but we didn’t push it hard. Towards the end of our trip after we stopped for gas, the check engine light stayed off.

NHTSA complaint #11647506 — an unverified report by a vehicle owner.

FUEL/PROPULSION SYSTEM

GLE 450e Plug In-Hybrid. Car went into ‘Turtle Mode’ on Saturday March 8th for no known reason. Turtle Light and Check Engine warning lights came on and there was a warning message “Significant Reduction in Power”. My understanding this is a vehicle initiated precaution when something triggers the vehicle to go into reduced power mode. This all happened after the car had been driven on the highway for about 2.5 hours. It was running in gas engine mode since the battery power had been off for 1.5hrs. It was also about 30F in VT that day. The turtle mode came on as soon as we exited the highway. The vehicle was drivable, but there was almost no acceleration from 0-20mph. Once the car was above 25 mph and 2k RPM’s it could run 40-60mph but it had no brisk acceleration. When we stopped at lights, the poor acceleration continued all the way to our destination (so it ran 1.5 hours in Turtle Mode). But this is certainly a flow of traffic issue as the car pulls away from stops at a very slow and deliberate speed forcing other drivers to alter their driving. When we parked the car at our destination both the Turtle warning light and check engine light were still illuminated. Several hours later for our 4-hour return trip back from VT, when we started the car the check engine light was on but the Turtle warning indicator was off. The car appeared to run normally in ICE mode but we didn’t push it hard. Towards the end of our trip after we stopped for gas, the check engine light stayed off.

NHTSA complaint #11647506 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

EZS module and PTCU module failed and caused check engine light. Dealer was unable to read trouble codes and could only reset it. They replaced the modules. This is a safety issue for me and the dealer said I could only sell the car back, they refused to refund my full purchase of the vehicle. I lost about $14k just for owning this vehicle for 2 weeks.

NHTSA complaint #11644917 — an unverified report by a vehicle owner.

HYBRID PROPULSION SYSTEM

The contact owns a 2025 Mercedes-Benz GLE450E 4Matic. The contact stated that while driving at an undisclosed speed, the message "Fault Detected - Please Pull-Over", was displayed before the vehicle inadvertently lost motive power. The contact pulled over to the shoulder of the roadway, where the vehicle failed to restart. The blank warning light was illuminated. The hybrid battery warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the hybrid battery. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was 1,100.

NHTSA complaint #11641810 — an unverified report by a vehicle owner.

POWER TRAIN

Vehicle goes into Turtle mode with the error that says Performance Extremely Limited. It happens without any warning and has already happened 3 times right now. Last night (December 8th, 2024) it happened as my wife was merging into the freeway. All of a sudden, the power got cut out almost completely. The Check engine light turned on, the Turtle symbol came ON and the message Performance Extremely Limited came on. She was lucky there was no traffic, but this could happen where there is traffic at speed coming and they can easily rear end our vehicle. This condition can't be safe. While searching online, i see hundreds of people have the same issue happen to them as well, with Mercedes Benz having no answers to the issue at hand. This can't be safe.

NHTSA complaint #11629705 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

Vehicle goes into Turtle mode with the error that says Performance Extremely Limited. It happens without any warning and has already happened 3 times right now. Last night (December 8th, 2024) it happened as my wife was merging into the freeway. All of a sudden, the power got cut out almost completely. The Check engine light turned on, the Turtle symbol came ON and the message Performance Extremely Limited came on. She was lucky there was no traffic, but this could happen where there is traffic at speed coming and they can easily rear end our vehicle. This condition can't be safe. While searching online, i see hundreds of people have the same issue happen to them as well, with Mercedes Benz having no answers to the issue at hand. This can't be safe.

NHTSA complaint #11629705 — an unverified report by a vehicle owner.

ENGINE

Vehicle goes into Turtle mode with the error that says Performance Extremely Limited. It happens without any warning and has already happened 3 times right now. Last night (December 8th, 2024) it happened as my wife was merging into the freeway. All of a sudden, the power got cut out almost completely. The Check engine light turned on, the Turtle symbol came ON and the message Performance Extremely Limited came on. She was lucky there was no traffic, but this could happen where there is traffic at speed coming and they can easily rear end our vehicle. This condition can't be safe. While searching online, i see hundreds of people have the same issue happen to them as well, with Mercedes Benz having no answers to the issue at hand. This can't be safe.

NHTSA complaint #11629705 — an unverified report by a vehicle owner.