2018 CHEVROLET SUBURBAN Complaints

The contact owns a 2018 Chevrolet Suburban. The contact stated while the contact's husband was driving at an undisclosed speed, the accelerator pedal was depressed, however the vehicle failed to accelerate as intended. In addition, the contact's husband noticed an abnormal sound and the vehicle independently stopped. The contact stated that the instrument cluster displayed a blank screen. The contact's husband attempted to shift the gear shifter, however the gear shifter failed to shift as intended. The contact stated after several attempts, the gear shifter shifted as intended. The vehicle was driven to the residence. The vehicle was taken to an independent mechanic where it was diagnosed with a failed transmission. The contact's husband was informed that the transmission needed to be replaced or rebuilt. The vehicle was not repaired. The contact referenced an unknown recall; however, the VIN was not associated with a recall related to the failure. In addition, the contact was informed that the failure was a known failure with the vehicle. The manufacturer was made aware of the failure. The contact was informed that the failure was not covered under the unknown recall. The failure mileage was approximately 108,000.

My husband was driving our 2018 Chevy Suburban when it suddenly stopped accelerating and he could no longer shift gears. Luckily, this happened while he was driving down a gravel road (approx 25-30mph). If he would have been driving at highway speeds, it is likely that he could have lost control of the vehicle. Our Suburban had no issues to this point and had always run well. We take it in for routine maintenance. We had it towed to a local repair shop, and they informed us that something had happened with the transmission and that it would need to be replaced. I have found several GM transmission recalls and our situation sounds similar to reference N252536750. Again we had no warning signs and had been experiencing no issues with our vehicle. If this had been something that we had been noticing problems and hadn't gotten it looked at, I can understand that maybe this had been something on going for a while that we had just missed maintenance on. However, for the transmission to stop so suddenly, I believe there must be some sort of larger failure in the transmission system.

Odometer Fraud. The contact purchased a 2018 Chevrolet Suburban. The contact stated that while purchasing an aftermarket warranty coverage, the warranty company informed the contact that there was a mileage discrepancy based on the Carfax report. The vehicle was a dealer sale. At the time of purchase, the mileage was 123,959; however, the Carfax report listed the mileage at 129,000 one month prior to the purchase.

Transmission problems 124,994 miles . It's the same defects as the 2019-2025 defects.

The transmission just stopped working no warning just wouldn’t go into gear. Then I turned it off and back on and was able to limp home it’s slipping bad .

My 2018 LT Chevy suburban with 110000 miles has been giving me transmission and motor problems. I took it to chevy vannuys and they took 3 days and did nothing. I saw a recall on line for the same year. Explaining about transmission problems. Where can I go to have it fixed.

I am reporting a safety issue involving a Cybex Eternis S child car seat. The seat was manufactured on 02/28/2020 and has a printed expiration date of 02/25/2030, indicating a 10 year usable life. At approximately five years of use, the head impact foam failed and is broken into two separate pieces. The foam pieces are detached. This foam is a required safety component. Cybex customer service confirmed in writing that if the head impact foam is detached or broken into separate pieces, the seat does not meet safety requirements and should not be used. Cybex also confirmed that no replacement part is available and no repair or remedy is offered. As a result, the seat is unsafe and unusable halfway through its stated usable life, with no ability to repair or replace the failed safety component. This raises concerns about product safety support for child restraint systems marketed with extended usable lifespans.

The contact owns a 2018 Chevrolet Suburban. The contact stated that on several occasions, while the vehicle was parked and running, or while driving at undisclosed speeds, the vehicle lost motive power. There was no warning light illuminated. Occasionally, the vehicle was able to be restarted; however, on other occasions, the vehicle required towing. The vehicle was taken to the dealer, but was not diagnosed or repaired. The contact stated that the battery cable and ignition switch were replaced; however, the failure persisted. The dealer informed the contact that the vehicle was unsafe to drive; however, the failure could not be duplicated. The manufacturer was made aware of the failure. The approximate failure mileage was 208,257.

1.) January 29 2026 @6:00PM Vehicle was in use. Driver accelerated to avoid another vehicle and the engine loss all power. When pushing on the accelerator the tachometer would increase as if I was reving the engine however there was no power. SAFETY ISSUE: With power completly lost, I had to coast over to the should of highway 10 and sit on the shoulder. Vehicle had to be turned off and restarted in order for the vehicle to have power. ................................................................................................................................................................................................. 2.) March of 2021 - Vehicle was in use. Driver accelerated to merge with traffice and the engine experienced a loss of all power. When pushing on the accelerator the tachometer would increase as if I was reving the engine however there was no power. Driver contacted ON-STAR seeking assistance. ON-STAR rep advised that I pull over onto the shoulder of the highway, turn off the vehicle, then turn it back on which temporatily worked. SAFETY ISSUE: With power completly lost, I had to coast over to the should of highway 60 freeway and sit on the shoulder. Vehicle had to be turned off and restarted in order for the vehicle to have power. ACTION taken: Vehicle was taken to a GMC certified dealer and the "CONTROL CYLINOID VALVE & TRANSMISSION CONTROL MODUAL ASSEMBLY WERE REPLACED. First incident the repair was under warrenty and there was no expense to the owner Second incident the repair was not under warrenty and owner is required to pay repairs.

Transmission will not go into drive or reverse. This also happens when car is in drive going down the road it will all of a sudden lose power and not go when pressing gas pedal. Vehicle has to completely shut off several times before it will go back into gear. No warning before it started. This can be dangerous when it happens in traffic and I can’t move car out of the road. It has not been inspected yet. Also blind spot warning does not always says it needs serviced.