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 |
|---|---|---|---|---|
| Nov 2025 | ENGINE | Truck cut out going across the road almost got hit due to the vehicle stalling then about a mile down the road the check engine light came on parked it took it to my mechanic and after the incident it was throwing a cylinder misfire code. Cylinder one when the mechanic got in there was completely shot and I had to have a new motor. No warning no lights could have potentially caused a major accident. | Crash: No Fire: No | Unknown |
| Nov 2025 | ENGINE AND ENGINE COOLING,ELECTRICAL SYSTEM,ENGINE | The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving at 25 MPH and making a turn, the vehicle lost motive power. There were several unknown warning lights illuminated after the failure. Upon investigation, the failure was related to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The vehicle was towed to an independent mechanic, where it was diagnosed with lifter failure and camshaft damage. The vehicle was repaired. The local dealer was not contacted. The manufacturer was contacted and opened a case, and referred the contact to the local dealer for assistance. The failure mileage was approximately 86,960. | Crash: No Fire: No Towed | 86,960 |
| Nov 2025 | POWER TRAIN | Transmission problem I have had 3 transmission replacement. I was told that these trucks have a faulty transmission from the sales representative to the mechanics. After these transmission replacement now I have an engine problem where the lifters need to be replaced and camshaft. I have had all service done on time never missed a service. Now the dealership is telling me that this could be a reason why my transmission keeps going out. And can’t really give me a reason why I keep having the same problem. Truck has 97k miles on it when I purchased it had 45k I can’t even enjoy the vehicle because it’s always at the dealership with the same problem and they don’t know why it’s keeps happening, at this point it is a safety concern for me this is my daily driver where I drive my kids to school now I never know when it will just stop running. It jerks I’m afraid when I’m stop at a stop sign I might hit the car I front of me. | Crash: No Fire: No | Unknown |
| Nov 2025 | ENGINE | Engine problems (Oil, crankshaft, loss of propulsion) similar to that of recalls in 2021-2024 models. | Crash: No Fire: No | Unknown |
| Nov 2025 | ENGINE | It is the same issue with 2021-2024 6.2L engines that have already been recalled. I have to replace lifters and cam because of the issue. | Crash: No Fire: No | Unknown |
| Nov 2025 | POWER TRAIN | The original engine (6.2L L87) had to be rebuilt by GM because of lower engine knocking in June 2024, with 57,873 miles. The rebuilt engine had to be replaced with a remanufactured engine in October 2024, but had to wait until the completed work in December 2024. The remanufactured engine started knocking, and that engine was replaced in October 2025. All part of the L87 6.2L engine failures. Problem documented by dealerships. Components were brought to GM's attention. No warning lights or messages - just lower engine knock. | Crash: No Fire: No | Unknown |
| Nov 2025 | ENGINE | Driving at night when the low oil light came on then engine failed. Engine is now blown and will not run. Engine L87. | Crash: No Fire: No | Unknown |
| Nov 2025 | ENGINE | The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, several unknown warning lights illuminated, and the engine seized. The vehicle was taken to an independent mechanic, where it was diagnosed with a misfire in cylinder #3 and engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact referenced an unknown recall with a similar failure; however, the VIN was not associated. The manufacturer was not made aware of the failure. The failure mileage was approximately 101,000. | Crash: No Fire: No | 101,000 |
| Nov 2025 | POWER TRAIN | Transmission experiences shuddering while accelerating. Impact on driving performance which is a safety issue. Problem has been confirmed by the dealer. No warning lights are present during this problem. | Crash: No Fire: No | Unknown |
| Nov 2025 | ENGINE | My truck had a ticking, knocking on the bottom end of the engine as I was driving home with my children. When i pulled into my driveway, the low oil pressure light came on and the truck began to stall while the back of the truck was till in the roadway. Several cars had to come to a complete stop to avoid hitting us, right where my children were seated in the back. I was able to limp the truck into my driveway. The following day I attempted to start the truck. It started hard and immediately gave me a low oil pressure light. I shut the truck off and called the dealership. The dealer wanted $3000 to just diagnose the problem. I had to pay out of pocket to get the truck towed to a private shop. The private shop started the truck and attempted to drive it to reproduce the issue. The truck engine seized and I had to pay to have it towed back to the shop. I then had to purchase a brand new crate engine from GM and pay to have it installed. The seized engine would not even roll over, so the cost of labor was increased due to them not being able to unbolt the torque converter on the engine. My engine is a 6.2l and GM told me based on by truck being a 2019, that it was not included in the recall. So far, the engine replacement has cost me $19,000. | Crash: No Fire: No | Unknown |
| Nov 2025 | ENGINE | Was driving at about 55 mph and vehicle popped up with warning and said shift into neutral to restart. I tried to and all power turned off. This was at around 8 p.m. so no headlights or anything. Luckily got it stopped without hitting anything. Had vehicle towed and motor was locked up. Spun bearing they said. Same issue apparently as other 6.2 liter engines have been having. | Crash: No Fire: No | Unknown |
| Nov 2025 | ENGINE | Engine suddenly lost power at highway speed. Truck was still running so I was able to get off the highway. Engine failure was caused by bent lifter. Lifter failure also caused damage to the camshaft. Vehicle was at dealership for significant time with a large repair bill that GM is not willing to cover due to the vehicle being 5 weeks out of warranty | Crash: No Fire: No | Unknown |
| Nov 2025 | ENGINE | Engine Failure. 1. The lifter in cylinder 5 failed (dropped) this prompted me to bring the truck in initially. 2. Upon further inspection all the cam bearings were scored and out of spec. Waited 4 months for an engine replacement from GM. Eventually I cut my losses and sent the block to a machine shop. This was all paid out of pocket. Truck had 74,000 miles on it. | Crash: No Fire: No | Unknown |
| Nov 2025 | STEERING | Without any notice, I lost my power steering while driving. The wheel jerked to the side, and when I corrected I realized that I no longer had power steering. I was still able to "steer" my vehicle, but not without brute force. If it were someone of lesser ability (e.g. elderly) it may have led to a devastating outcome. I have yet to get the issue diagnosed, as it just happened yesterday, but it certainly is concerning! I just wanted to bring this to the attention of the NHTSA, as I've since learned that I'm not the first GM Sierra owner to suffer this malfunction. | Crash: No Fire: No | Unknown |
| Nov 2025 | ENGINE | I keep getting low oil warning even after oil change | Crash: No Fire: No | Unknown |
| Oct 2025 | ENGINE | Sudden lost of power while driving. I was driving on the i95 and out of nowhere the vehicle shut off in the middle of the highway. It was a scary moment because I could of been in serious accident. All the engine signs were displayed on the dashboard. | Crash: No Fire: No | Unknown |
| Oct 2025 | POWER TRAIN | The engine started making ticking sounds, then the check engine light came on on and it began running very rough. GMC dealer replaced camshaft, all 16 lifters and guides and one bent push rod. The repair (not including transportation - I had to leave in GallupNM when I was enroute to Minnesota) cost was $7,832.81. The vehicle has 93,000 miles | Crash: No Fire: No | Unknown |
| Oct 2025 | ENGINE | At approximately 61,500 miles, the engine malfunctioned while cruising on a 4-lane highway at 45 MPH. The problem was diagnosed by an independent mechanic as a crankshaft rod bearing failure. This failure happened despite all recommended maintenance being performed with specified parts. This failure caused a safety concern as the vehicle was in motion at the time of the failure, increasing the potential for a collision due to the vehicle becoming disabled on a highway. The engine was replaced at a cost of approximately $13,500 parts and labor. Vehicle was out of service for two months due to a waiting list on replacement L87 engines. | Crash: No Fire: No | Unknown |
| Oct 2025 | ENGINE | Defective out cool oil return line on v8 6.2L engine. Causing the truck to lose oil immediately due to being under pressure. Caused complete engine failure and required a new engine. That took 4-5 months to complete. Located in park city Utah a cold weather location. Not part of the 2019 recall for the same failure that gmc did in Canada and Alaska for a defective cool oil return line. When I called gmc to talk about it they referenced my vin and said it had no open issues and that they couldn’t talk about it. | Crash: No Fire: No | Unknown |
| Oct 2025 | ENGINE,FUEL/PROPULSION SYSTEM,BACK OVER PREVENTION | While towing a trailer on Highway 77 in northern Wisconsin, my 2019 GMC Sierra 1500 experienced a sudden engine failure. The dashboard lit up with alerts for the engine, transmission, ABS, and traction control. I safely pulled over in a 55 mph zone with narrow shoulders and heavy truck traffic due to nearby road construction. The truck lost all power, and I had to block the driving lane to transfer the trailer to another vehicle, creating a hazardous situation. There were no prior warnings or issues. The truck had regular service at independent shops, and I had checked and topped off the oil that morning. Lahti Towing & Service recovered the vehicle, changed the oil (no metal shavings), and replaced the camshaft sensor, but the truck still wouldn’t start. They then towed it to Rhinelander GMC, where a broken timing chain was diagnosed, requiring a full engine replacement. The vehicle is currently at Rhinelander GMC and available for inspection. I have photos of the dashboard alerts and data from the GM app documenting the incident. | Crash: No Fire: No | Unknown |
| Oct 2025 | ENGINE | My engine has a loud knocking/ticking noise. I have had one mechanic look at it. He has me taking my truck to a dealership this week. He believes the known issue with GMC's 6.2 engine is taking place in the engine in my 2019. From a verbal conversation with the dealership, they believe the same. I was advised to complete this form ASAP. | Crash: No Fire: No | Unknown |
| Oct 2025 | ENGINE | Pulled up to a stop sign, the engine shutoff and would not restart. Had the vehicle towed to the dealership. Received a call that the engine will need to be replaced. The code is a P0016. Same code as the other 6.2 L87 GM motors, but is not currently under the recall. They found no metal in the oil pan and the engine only has compression on cylinders 2 & 8. Make no mechanical sense. Before this, I had no engine lights, I had no oil burning, I had no smell of oil and the truck ran fine. No loss of power or any other issues. | Crash: No Fire: No | Unknown |
| Oct 2025 | ELECTRICAL SYSTEM | This truck needs 2500.00 in work to replace Electrical Harness after months of problems and evaporating leaks. | Crash: No Fire: No | Unknown |
| Oct 2025 | STEERING | The contact owns a 2019 GMC Sierra 1500. The contact stated that occasionally, while driving approximately 57 MPH, the vehicle violently shuddered, causing the steering wheel to become difficult to turn in either direction. No warning light was illuminated. The vehicle was taken to a local dealer, where it was determined that the driver’s and passenger’s side front tires needed to be replaced. The vehicle was repaired; however, the failure reoccurred. The vehicle was taken back to the same local dealer where it was diagnosed; however, the cause of the failure was not yet determined. The manufacturer was made aware of the failure. The failure mileage was approximately 13,000. | Crash: No Fire: No | 13,000 |
| Oct 2025 | ENGINE | I have a loss of power in the motor with engine codes diagnosed by the dealership of P0016, P0017. These are the same codes and symptoms that are included in the 2021 through 2024L 87 6.2 L motor recall. My motor is a 2019 edition but having the exact same issues. I know these are the same motors and is having the same issue. started having loss of power in May 2024 with engine codes coming in September 2025. | Crash: No Fire: No | Unknown |