Chevrolet Suburban Complaints (2025)

32 consumer complaints on file.

#11700943November 22, 2025
VISIBILITY/WIPER
Heat blowing cold for all passengers and defrost fails to clear windshield as stated in FMVSS-103. After reviewing forums it seems that this is a known issue/common failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11698805November 11, 2025
ENGINE, POWER TRAIN, VEHICLE SPEED CONTROL
7/13/25: Car repeatedly jerking/shuddering/rough ride. A flashing check engine light came on for 10 or 15 minutes. After stopping car and restarting it, the check engine light went off. 9/15/25: Car jerking and another flashing check engine light. Took to dealership. They drove it and said no codes stored. Told it was probably the transmission "breaking in." Took home. Car continued to jerk/stumble. 8/28/25 to 9/15/25: Car jerking and flashing check engine light back on. Took to Autozone. A Random/Multiple Cylinder Misfire Code was detected (P0300). Took to dealership and confirmed P0300 Code stored. GM TAC engineers involved. Told they were unable to figure out why car was having multiple misfires. Returned car to me because no active code/light. 9/29/25: Car jerking and flashing check engine light back on. Got a warning of "reduced acceleration and drive with care." Car lost power. I have video of this and contacted On Star with report generated and P0300 code. On 10/1/25 on way to dealer, car making audible ticking noise. I have video of this. Took to dealer, the ECM was replaced and oil changed because it was "very dark" (in vehicle with 4,600 miles). Car continued to jerk/stumble. Told by dealer that problem would have to get worse before diagnosis could be made. 10/31/25: Jerking and another flashing check engine light with "reduced acceleration drive with care warning." Turned car off and engine light off. On Star report P0300. Took to dealer. The dealership was given the videos of check engine lights/reduced acceleration warnings and ticking noise video. All show problem happening around 1,200 rpms. Told by dealer on 11/11/25 that GM rep said they will not pay dealer for any work because no active engine light/codes. Told to pick up car. Asked dealer today for reason in writing, but no response. Very concerned about vehicle safety when repeatedly going into limp mode and flashing check engine lights with GM offering no solution.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11696802October 31, 2025
POWER TRAIN, ENGINE
Purchased the vehicle on April 7, 2025. On 7/15/25, the car had 6948 mi. and started running rough, had a loss of power, an odor from the engine, and then on the display: check engine, blinking green vehicle light, and a message stating that the car was lowering for stability control. Took the vehicle to the closest Chevrolet service. The service dept. determined that code found P0307 and P0300, cylinder seven had the most misfires above 500. After completing oil service, the vehicle began to click on the passenger side; however, it was not misfiring. They inspected and found potential lifter issue. Found ticking coming from cylinder 7 and verified misfires. Found 2 pushrods damaged. Heard noise coming from cylinder 4, removed valve cover, removed rocker arms, and found 1 pushrod damaged. They removed and replaced all lifters and 3 pushrods. They stated there was no more noise //after this repair. These repairs were completed on July 25, 2025. On 8/15/25 took back to service because it continued to run rough and made excessive noise and whistling when starting the vehicle. The dealer inspected and heard the noise, inspected the vehicle exhaust leak, checked exhaust manifolds, pipe connections, and determined there were no issues found. On 9/26/25 at 11,821 miles the car was making excessive noise, running rough, and was losing power. Drove home, and the vehicle was running rougher and losing power. No check engine lights or warnings were present. Drove home, and the vehicle was running rougher and losing power until it turned off. Towed in. Maintenance techs determined catastrophic engine failure, all bearings and engine rods seized. After this repair hen the catalytic converter failed. This car has been out of service due to engine failures for 43 days out of the 204 of ownership.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11690942October 2, 2025
ENGINE
Cause unknown, however, I have discovered that the engine in my Suburban, the Engine code LZO 3.0L Duramax, has damaged itself internally. I have been told that there is a large batch of engines that have this same problem, and the dealership I sent my car to has several cars in the same position. This problem is causing the engine to lock up or completely quit. This could be serious depending on when this failure happens. Currently, they are telling me that I am months away from getting a new engine due to a back order. Vehicle still in shop, so I do not have records yet, but I will be happy to give them once I have them.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11683457August 27, 2025
UNKNOWN OR OTHER, FORWARD COLLISION AVOIDANCE: WARNINGS
My Onstar system is not working properly. I first noticed the Forward Collision light then the Wifi hotspot features not working. Reached out to onstar they couldn’t help then referred to dealership. Visited dealership 8/12/2025 was told there’s no error code although they see what’s happening. Doing further investigation of my own i found out this is a very well known issue amongst General Motors, Onstar and the dealerships selling these vehicles. There are varying issues customers are having from wifi not working to vehicles completely shutting down in traffic. Once my visit to the dealership commenced i was informed the Telematic Control Module” is on back order with no estimate on deliveries as there’s “others waiting also” this is a scary situation. I am worried that my issue is going to progress into a bigger problem. I drive 23 miles to work and 23 back. I am scared that my module will eventually fail when i am on the highway…..this is terrifying! Over 80k to play roulette.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11675867July 24, 2025
ENGINE
The engine in 2025 Suburban (6.2L V8) has failed and the car is not drivable. It is currently in a Chevy dealership service department waiting for parts. The 2025 model is not listed under the recall. However it should be, I know of 3 2025 engines that have recently failed. I was passing a vehicle and as I took my foot off the accelerator the transmission shifted 2 times and then the engine shut off and the car was coasting. We had no indication that the engine shut off, just several messages on the screen. ( Press start button, and conditions not correct for shifting.)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11676013July 24, 2025
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
The contact owns a 2025 Chevrolet Suburban. The contact stated that the "Adaptive Cruise Control Temporarily Unavailable" message was displayed on the instrument panel. The vehicle was taken to a local dealer where the vehicle was diagnosed, and the contact was advised that the radar was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 23,686.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11668849June 24, 2025
UNKNOWN OR OTHER
Still, I don’t have a registration
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11666193June 10, 2025
SERVICE BRAKES
The brake system had a failure and the vehicle could not be slowed down. The brakes would come and go until I was able to stop. GM dealership diagnosed it with a failed master cylinder and the part is on national back order.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11661649May 17, 2025
ELECTRICAL SYSTEM
Main display, driver display, and HUD froze while driving. Speedometer froze as well. Main display goes back while the driver display freezes. NO blinkers worked. This happened 3x throughout the day. Only way to reset is unhooking the battery.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11660820May 14, 2025
ELECTRICAL SYSTEM, EXTERIOR LIGHTING
OnStar Module factory defaults/Malfunctioning - Power button don’t turn on so there’s no internet connection. This effect all the safety features in the car. Please recall. There has been numerous incidents reported online to this particular default.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11647861March 12, 2025
EXTERIOR LIGHTING
New vehicle purchase, the Dealer had installed a 3rd brake light that blinks 4 to 5 times when pressed. I'm concerned because according to what I've read a blinking brake light is against federal and state regulations.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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