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5.1

fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
19,045 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2018 Chevrolet Suburban engine problems

engine problem

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2018 Chevrolet Suburban Owner Comments

problem #11

Nov 032023

Suburban

  • miles

A D V E R T I S E M E N T S

The Trailor brake system, engine light, stabilitrak control system and antilock brake system is on due to the wiring of this vehicle.

- Cincinnati , OH, USA

problem #10

Oct 172023

Suburban

  • miles
Car abruptly lost power while driving causing rapid deceleration and requiring immediate action to steer vehicle off the active roadway without hitting other vehicles or causing property damage. There were no warning lights or signs until this occured. The vehicle was later towed to chevrolet who informed us that this was a KNOWN ISSUE these cars have where their "lifters fail and sometimes even damage the camshafts" If this was a known issue why would it not have been addressed in a recall. After speaking with the dealer I searched the internet for the same issue and it is widespread across several GM cars including mine. GM now wants $3,100 to repair a dangerous manufacturer defect.

- Merrick, NY, USA

problem #9

Sep 292022

Suburban

  • miles
9/29/22 (123k miles) TECHNICIAN: - Test drove vehicle, inspected transmission operation & found gear train noise / L3, in approximately 1st through 3rd gears. Tach was jumping up to about 200 rpms when converter locked up and then would go back down. Monitored on scanner and found converter slipping in and out of lock up. - Scanned computer control modules & found no codes. - Inspected transmission fluid level & condition, found transmission fluid was full and red, note; customer noted fluid was changed recently and was dark and burnt with metal shavings in it during the change. (photo of metal shavings). - Inspected exterior of transmission for leaks & damage, found no leaks or damage. - Determined there is a lack of lockup pressure or hydraulic pressure and internal damage to the transmission assembly. - Recommends replacing the transmission assembly with a unit with an improved torque converter. (We replace).

- Sunriver, OR, USA

problem #8

Aug 152023

Suburban

  • miles

A D V E R T I S E M E N T S

While slowing down to make a left hand turn at an intersection, my vehicle suddenly lost power steering and the entire system completely shut down. There was no electronic function during that time. I had to put the vehicle in park, turn the key to the off position and then start it back up. It has happened multiple times, both at low speeds in drive and reverse. This would have caused a collision if there was oncoming traffic at the intersection at that time.

- Vilonia, AR, USA

problem #7

Dec 062021

Suburban

  • 115,000 miles
The contact owns a 2018 Chevrolet Suburban. The contact stated that while driving at an undisclosed speed, the vehicle jerked with the check engine warning light illuminated and the vehicle inadvertently lost motive power. The vehicle was taken to the dealer; however, the vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact stated that he was informed by the dealer that the failure could not be duplicated, and that there would be a fee for a diagnostic test. The manufacturer was not made aware of the failure. The failure mileage was approximately 115,000.

- Katy, TX, USA

problem #6

Dec 072022

Suburban

  • miles
Car has been at dealer 3 times for Wi-Fi issue. Mechanic took car home for longer drive to check. No found issues. Brought in for small noise that comes and goes. They Came back saying $10000 for cam shaft and lifters they are assuming.

- Stoughton, MA, USA

problem #5

May 022022

Suburban 8-cyl

  • miles

A D V E R T I S E M E N T S

Hello, To whom it may concern, My vehicle is a 2018 Chevy Suburban with a 5.3 motor. GM produced these motors made from inferior metal and defective lifters. My engine began failing in May 2022, I've taking my vehicle to several shops for work but the problem has not been resolved. I have links below explaining the problems with these motors. There are tens of thousands of individuals with families struggle with this same problem I'm having as well. This is world wide news, I'm asking for help for myself and so many other people in these challenging times. I've contacted GM headquarters. [XXX] and [XXX] with no success, just the run around. I went to a GMC dealer here in Clarksville, TN where I reside this month. [XXX] with GMC told me he was hearing my lifters and I need not drive my vehicle. Called me in his office and told me he couldn't get my vehicle in to be looked at, but gave me another dealership contact information. I called and spoke with a gentleman by the name of [XXX] he also informed me that they were backed up and couldn't see me until October 5th. All warning lights came on in May of 2022, engine and steering and traction. Please view these links below that explain in further detail. Thank you for your time and help! My Contact information [XXX] https://youtu.be/EwOQbnFcAOc https://pickuptrucktalk.com/2021/12/are-there-new-problems-with-gm-v-8-engine-lifters-lurking/ INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

- Clarksville, TN, USA

problem #4

Mar 192022

Suburban

  • miles
I had noticed an intermittent chirping noise coming from the vehicle, but no warning lights were on and it did not seem significant, I thought maybe it was a squeaky belt that I would have checked at our next routine maintenance. My husband drove the vehicle next for an approximately 12-mile round trip. He noticed the noise get more consistent and louder, and while pulling into our driveway, I observed that the sound was very loud and smoke was coming from the right side wheel well. As soon as he put the vehicle in park, coolant flooded the driveway. We had an independent mechanic come to our home to diagnose the vehicle. He stated that the water pump completely blew and the pulley was loose. The mechanic emphasized that a car this age should not have had a loose water pump/pulley and that this was a manufacturing issue. He was very concerned that if it had blown while driving, it would have shut off the engine entirely and could have caused a catastrophic accident. He recommended a new water pump and thermostat.

- Crofton, MD, USA

problem #3

Jul 272021

Suburban

  • miles
The vehicle began to shake as if it would shut down. Then, the engine light came on. Then I received three text message alerts. We were shown paperwork regarding the service history that was done at Philips Chevrolet. Now we-??re getting alerts regarding work that has to be completed within 7 days.

- Springfield , IL, USA

problem #2

Jan 152021

Suburban

  • 88,000 miles
I purchased this vehicle in Dec of 2019 used. 35,000 miles. Now has 88,000 and the transmission went out. Regular oil changes. No warning lights. No issues. Stopped running. After having someone look at it to see what the issue was, the mechanic said the entire transmission has to either be rebuilt or replaced.

- Fairview, TN, USA

problem #1

Jul 282018

Suburban

  • 6,500 miles
Check engine light and miss firing. Faulty fuel injector on cylinder #1.

- Freeland, WA, USA

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