Complaint volume
587 consumer-submitted complaints are matched to this model year. Treat the count as a research signal, then read the actual summaries for repeated symptoms.
Complaint records
2019 GMC Sierra Complaints
587 consumer-submitted complaints on record for the 2019 GMC Sierra, grouped by component category.
587 Total complaints
12 Crash reports
3 Fire reports
7 Injury reports
Complaint data reflects consumer-submitted reports. A complaint is not proof
of a defect, recall, or manufacturer fault. Enriched severity fields come
from official bulk records when the complaint can be matched by ODI number.
Buyer interpretation
How to use these complaints before buying
Complaint records are most useful when they turn into inspection points, seller questions, and comparison checks against nearby model years.
Pattern to inspect
The most common categories are engine, power train, service brakes. Use those categories as a test-drive checklist instead of judging the vehicle from the total count alone.
Severity flags
Enriched records include 12 crash reports, 3 fire reports, 7 injury reports, and 0 fatality reports. These fields come from complaint records and should be read in context.
Mileage clue
Mileage is available on 206 complaints, with an average reported failure mileage of 36,124 miles. Compare that with the mileage on the listing.
Questions to ask the seller
- Have you had any problems related to engine, power train, service brakes?
- Can I see recent maintenance and repair records?
- Has the vehicle ever been towed, involved in a crash, or repaired for the same issue twice?
- Can we also check the recall record for this 2019 GMC Sierra?
Used-car checklist
Use these complaints before the test drive.
Build a buyer checklist to turn these issues into questions and inspection points.
2019 GMC Sierra
Build buyer checklist Compare with other years Sends year, make, and model to pre-fill your checklist.
How severe are the 2019 GMC Sierra complaints?
12 Crash
3 Fire
7 Injury
0 Fatality
50 Towed
1 Medical attention
What are the most common 2019 GMC Sierra complaint categories?
ENGINE 184
POWER TRAIN 75
SERVICE BRAKES 41
UNKNOWN OR OTHER 24
ELECTRICAL SYSTEM 18
POWER TRAIN,ENGINE 17
STEERING 14
ENGINE AND ENGINE COOLING 11
ELECTRICAL SYSTEM,SERVICE BRAKES 9
STEERING,ELECTRICAL SYSTEM,SERVICE BRAKES 9
587 total complaints on record
Latest complaints
| Date | Component | Summary | Severity | Mileage |
|---|---|---|---|---|
| Dec 2025 | ENGINE | We were driving down a farm to market road at about 50 mph pulling an empty cattle trailer when we had a severe power loss, lots of dash lights and warnings. I noticed white smoke coming from the tail pipe. We limped it back to the house and unhooked the trailer and idled it into the Chevrolet dealership in Portland TX. The dealership just called and they said the #5 cylinder failed, there is metal in the oil and it will need an engine replacement at a cost of over $11,000.00. The truck is a 2019 and has just over 54,000 miles on it. No engine should fail at 54,000 miles and no company should sell one that does. Pulling a loaded trailer at highway speeds with a total engine failure could easily cause death to passengers and livestock. 12122025 | Crash: No Fire: No | Unknown |
| Dec 2025 | POWER TRAIN | The contact owns a 2019 GMC Sierra 1500. The contact stated that in the first month that the vehicle was purchased, the vehicle intermittently hesitated before slamming into gear hard. No warning lights were illuminated. The vehicle was taken to the dealer, and the contact was informed that the manufacturer was aware of the failure and suggested that a triple fluid flush was needed, and the triple fluid flush was performed. The contact stated that the hard shifting persisted, especially while driving uphill. The vehicle was taken back to the dealer, where it was diagnosed and determined that the torque converter had failed and needed to be replaced. The vehicle was not repaired. The failure persisted, and the vehicle remained at the contact's parents' residence unrepaired. The manufacturer was not notified of the failure. The failure mileage was approximately 57,000. | Crash: No Fire: No | 57,000 |
| Dec 2025 | ENGINE | Main bearing failure | Crash: No Fire: No | Unknown |
| Dec 2025 | ENGINE | FOR THE LAST YEAR i BURN BETWEEN 2 - 3 QUARTS OF OILL BETWEEN OIL CHANGES. DEALER KEEPS TELLING ME THIS OS NORMAL. I KNOW IT IS NOT NORMAL AND I'M AFRAID OF ENGING FAILURE WHILE ENGINEERING RECALL IS IN PROCESS | Crash: No Fire: No | Unknown |
| Dec 2025 | ENGINE | GM installed a 2023 6.2L engine in my 2019 GMC. The engine locked up while I was driving it. It had about 54,000 miles on it. There is a recall on the vehicles with the 6.2 GM engines that were made between 2021 and 2024. However since they installed it in my 2019 they are telling me they won't warrant it because the recall just list the vehicle year and not the motor year. This is not right. | Crash: No Fire: No | Unknown |
| Dec 2025 | POWER TRAIN | The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the transmission unexpectedly hard downshifted. No warning lights were illuminated. The contact stated that the vehicle was hesitating while driving the rest of the drive. The vehicle was taken to the dealer; however, no cause for the failure was found. The dealer performed an 8-speed transmission fluid and filter replacement. The contact stated that the failure persisted. A month later, the contact stated that on a separate occasion, the transmission unexpectedly downshifted. No warning lights were illuminated. The vehicle was taken to the dealer; however, no cause for the failure was found. The contact stated that the failure persisted. The contact stated that a month later while her husband was driving on the freeway at an undisclosed speed, the engine seized and the rear-end locked and threw the driver into the steering wheel even though the seat belt was securely buckled. The contact stated that the transmission was stuck in drive(D), and the vehicle was unable to move forward. The driver shifted into reverse(R) and was able to pull off the freeway. The contact stated that the vehicle was then driven to an empty parking lot and left overnight. The vehicle was then picked up the following day and was driven to the dealer; however, no cause for the failure was found. The contact stated that the failure persisted. The manufacturer was notified of the failure. The contact hired a GMC engineer to inspect the vehicle and informed the engineer that the vehicle needed to be driven a minimum of three days and 300 miles before experiencing the failure. The contact stated that the engineer drove the vehicle for 100 miles. The contact stated that the GMC engineer and one of the employees at the dealer suggested replacing the PCM module because there was no fault code present during the failure. However, the contact was informed that there was no guarantee that replacing the PCM would fix the vehicle. The failure mileage was approximately 45,000. | Crash: No Fire: No Injuries: 1 | 45,000 |
| Dec 2025 | STEERING,POWER TRAIN,ELECTRICAL SYSTEM | The contact owns a 2019 GMC Sierra 1500. The contact stated while driving at an undisclosed speed, the vehicle jerked and failed to accelerate as intended while depressing the accelerator pedal. There was an abnormal sound coming from the transmission. The message "Reduced Engine Power” was displayed and the transmission warning light was illuminated. The vehicle was taken to the dealer and the transmission was repaired. The contact stated that the failure persisted. The vehicle was taken back to the dealer, and the transmission was replaced. The contact stated that on a separate occasion, the A/C failed to function as intended. The contact had to drive for fifteen minutes for cold air to come from the A/C vents. The vehicle was taken to Houston Cadillac and the vehicle was repaired. The contact stated that the failure persisted. The dealer diagnosed the vehicle and informed the contact that there was a short circuit. However, no cause for the short circuit failure was found. An unknown repair was done on the vehicle. The contact stated that the failure persisted. The check engine warning light was illuminated. The contact stated that on a separate occasion, there was an abnormal sound coming from the steering wheel. The vehicle was taken to Payne Rio Chrysler Dodge Jeep Ram, where it was diagnosed that one of the bolts found on the steering column was missing and the other bolt was loose. The vehicle was repaired. The contact was informed that the A/C condenser had failed. The vehicle was repaired. The contact stated that the failure persisted. No warning lights were illuminated. The vehicle was taken back to the dealer. The entire A/C assembly was replaced. The contact stated that the failure had occurred soon after the vehicle was purchased. The manufacturer was not notified of the failure. The failure mileage was unknown. | Crash: No Fire: No | Unknown |
| Dec 2025 | ENGINE | Just had my 2019 GMC sierra 1500 Denali engine fail. My truck has 75k miles oil changed regularly no codes, issues or dash lights. Recently had it at GMC I Folsom California for a rear window replacement. Full inspection with no issues and nothing found wrong. Sunday 12/7 with my girlfriend and son in the truck about to get on the freeway felt a weird shift as I got on the freeway on-ramp. As I went to accelerate I had my traction control lights come on, lost power, and flashing check engine lights limped the truck off the side of the freeway and exited to a gas station. My truck wasn’t leaking anything and oil pressure was good but it sounds like popcorn was being made in my engine when it was on. Had my truck towed to Folsom GMC and yesterday 12/8 got a call I need a new engine. Called GM corporate to talk to them and opened a claim. GMC dealership got an initial help with 15% of the bill telling me I would need to pay $13,315. Talked to the service advisor and they put in a request for help from GM. Today at 9:00 a.m. they offered 50% coverage and I was able to get a little more but it still has me paying $7,500 and it will be 2-3 weeks to get the repair done. The dealership also will be getting me a loaner vehicle. This dealership has not been great but with this they are trying and doing a lot. However 75k on a truck that does not haul or have heavy use and is 7 years old with no prior issues is crazy. I was told cylinder 8 showed a misfire. Once they opened it up there was damage to the pushrods, valves and lifters with significant metal throughout the motor. I’m still waiting for corporate GMC to get back to me and hoping they will help or offer more money off as this is still a very large bill for a single father of 2 around the holidays. I bought the truck used with about 32k on it in 2022 and have had no mechanical issues or codes related to the motor or transmission. | Crash: No Fire: No | Unknown |
| Dec 2025 | UNKNOWN OR OTHER | Experience water leaking 3rd brake light and rear window. Leaking in both areas. Also concerned about mold that could be caused by this. | Crash: No Fire: No | Unknown |
| Dec 2025 | BACK OVER PREVENTION | The contact owns a 2019 GMC Sierra 1500. The contact stated that the rearview camera displayed a black screen while the vehicle was in reverse(R). The contact stated that the failure obstructed driving visibility, preventing the driver from safely operating the vehicle. The vehicle was taken to the dealer; however, the contact was informed by the dealer that the part needed for the recall repair was not available. The vehicle was not repaired. The contact stated that the failure persisted. The manufacturer was not notified of the failure. The failure mileage was unknown. | Crash: No Fire: No | Unknown |
| Dec 2025 | ENGINE | Engine malfunction, had dealer look at truck and they said I needed a new engine, check engine light came on and a knocking noise appeared suddenly. Reading about 2021+ sierra with 6.2 engine that has a recall with the same problem as mine. Wondering why that recall wasn’t extended to my truck as well. | Crash: No Fire: No | Unknown |
| Dec 2025 | POWER TRAIN,ENGINE | Engine failure on 12/1/2025 16,253 miles and 591.9 hours on vehicle. Vehicle has the 6.2l engine. Towed to dealership | Crash: No Fire: No | Unknown |
| Dec 2025 | ENGINE AND ENGINE COOLING | The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving approximately 60 MPH, the vehicle started shuddering. The check engine and stabilizer warning lights were occasionally illuminated. The contact pulled over into a nearby gas station, and the vehicle was later towed to a local dealer. The vehicle remained at the local dealer, where it was diagnosed and determined that the engine needed to be replaced. The vehicle was not repaired due to the cost. The local dealer informed the contact that the failure was related to NHTSA Campaign: 25V274000 (Engine and Engine Cooling); however, the VIN was not included. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 49,000. | Crash: No Fire: No Towed | 49,000 |
| Dec 2025 | ENGINE | The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving at various speeds, the vehicle hesitated and failed to properly accelerate while the accelerator pedal was depressed. No warning light was illuminated. In addition, the contact was aware of excessive oil consumption and the vehicle was previously taken to a local dealer. An appointment with the same local dealer was scheduled to inspect the vehicle. The vehicle was not yet repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 87,000. | Crash: No Fire: No | 87,000 |
| Dec 2025 | ENGINE | Engine oil cooler lines leaking from crimp joints. "Oil Pressure Low Turn Vehicle Off" display showed on dashboard. Oil is present all over the bottom of my truck as well as a trail along the road and the parking lot where I parked it. I have not brought it to the dealership yet. There has been a Customer Service Program notice about this issue, I got my truck after the issue was sent out so I did not get the letter or supposedly this truck is not part of it even thought it is the exact issue. Customer Service Program number N212326940. | Crash: No Fire: No | Unknown |
| Nov 2025 | FUEL SYSTEM, GASOLINE | The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving 62 MPH, the vehicle lost motive power. There was no warning light illuminated. The vehicle was towed to the dealer, where it was diagnosed and determined that the fuel pump module sensor had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 82,000. The VIN was not available. | Crash: No Fire: No Towed | 82,000 |
| Nov 2025 | ELECTRICAL SYSTEM,ENGINE | Complete engine failure. I was driving approximately 55 miles an hour, then all of a sudden the cruise control automatically shut off and a series of alarms are triggered. When pressing the accelerator pedal, the engine vibrated excessively in Cleary indicated catastrophic engine failure. I was lucky enough to make it to the nearby dealer who confirmed a complete engine failure. I ended up buying a new vehicle that day to avoid being stranded. | Crash: No Fire: No | Unknown |
| Nov 2025 | ENGINE | Around June 2025 under normal driving my truck displayed engine oil low which I promptly checked the oil to find that it was in range. The light later went off but I still brought it to the dealership to which they could find no issues. From there over the next month or so the truck developed a low end popping sound on start up and at my next oil change at the dealership in August of 25 I asked them to listen to see if they heard it and could recommend a course of action. They reported not hearing anything. On October 19th I had my family in the truck with me and during normal acceleration the engine had a loud pop sound and lost power. Every warning light came on and I pulled over promptly when safe. I had it towed to the dealership and their initial diagnosis was a failure on cylinder 4 with a suspected failure of either the cam shaft or lifter. Given the poor design of the lifter I didn’t want to go back with the OEM lifter so I had it towed to an aftermarket shop. It is there now and they are in the process of tearing down the engine. After watching a video on YouTube I fear my truck is part of the connecting rod bearing failure under PE25-001. My understanding is there is an official investigation into the trucks outside the initial recall. I wanted to submit this for your review as the truck only had 74,000 miles. Freeman GMC in Grapevine, Tx has performed all the maintenance and should have documentation. | Crash: No Fire: No | Unknown |
| Nov 2025 | ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM | my engine went out with no lights or warnigns prior to engine going out. Now we still making payments for the truck,expensive truck and we haven't use it because we dont have the money to fix it. | Crash: No Fire: No | Unknown |
| Nov 2025 | POWER TRAIN,ENGINE | Less then 47 000 miles on truck, Used for only city driving, no off road driving or rigorous travel. - engine malfunction and could have had catastrophic failure while traveling causing injury to myself or others. -Car is inoperable, dealer recommend not to drive it due to safety concerns. -I have metal shavings in the oil, misfires, and a P0011 code. These match the known GM lifter/camshaft failure pattern. Vehicle started skipping check engine light turned on for cam shaft interrupter magnet. GM has open recall for 2021-2025 engine However 2019 vehicle is still under investigation. | Crash: No Fire: No | Unknown |
| Nov 2025 | ENGINE | While driving my Sierra AT4, my engine shut off with no previous indication of a problem. The dash simply said to restart the vehicle. Unable to do so, I coasted the vehicle into a parking lot. Once it was diagnosed to be a defective engine, I replaced it with a new GM long block assembly paid out of pocket as the vehicle had 210,000 miles on it and was well out of warranty coverage. The first replacement engine lasted 15,000 miles before developing a spun bearing in the engine. GM did cover replacement of the engine assembly. The 2nd replacement engine was installed 12/2022 and lasted until 2/2025. Same engine seizure problem as the original due to the bearing failures that plague this engine series. Engines have always run 0-w20 Mobil1 synthetic as recommended by GM. Vehicle is currently waiting for GM to make a decision to cover it or not. | Crash: No Fire: No | Unknown |
| Nov 2025 | ENGINE | Informant system tells me that the engine oil is low every time right at about 1,000 miles after I change the oil. There have been times where the engine has hesitated to accelerate shortly after receiving the message. I've taken truck to be serviced with no oil leaks found. I purchased this truck with 21,000 miles on it, and it's been doing this ever since I've had it. | Crash: No Fire: No | Unknown |
| Nov 2025 | ENGINE | 2019 GMC Sierra that was not on recall list for engine, had same exact issue as the recalled engines. We were driving, light came on and it wouldnt work properly. We immediately took it for diagnoses and it was same reason as the recalls, however our engine wasnt on the list. We just had to pay 14K cash for our truck engine and repair. We purchased 5/24 with 78K miles and it stopped at 94K miles. We didnt have the truck for 5 months because of the motor recalls were backed up. GMC refusing to reimburse us even tho there is still issues with that motor | Crash: No Fire: No | Unknown |
| Nov 2025 | ENGINE | The starter started dragging about a year ago and on November 12 the 2019 GMC truck would not start. We had it towed to Harper GMC in Minden, La. They told us the motor was locked up. This vehicle has a little over 40,000 miles on it. Has always been parked in a carport out of the weather and still looks brand new. I see where 2021 GMC trucks have a recall on the motor and this is the same problem with our 2019. | Crash: No Fire: No | Unknown |
| Nov 2025 | SERVICE BRAKES | While driving in my uncongested neighborhood, my brakes totally failed. Dash indicated multiple brake failure warnings. I managed to get my truck stopped and returned home by engaging my low range, four wheel drive. If I had been in on the open road, going down a hill, negotiating a curve, or in traffic a crash would have ocurred, potentially fatality. My vehicle was towed to a GMC dealership. They diagnosed the problem in the electronic braking module with a software update needed. My vehicle Is a 2019, but had only 23,283 miles at the time of the braking failure. | Crash: No Fire: No | Unknown |