2019 GMC Sierra 1500 · symptom sheet
Check engine light or misfire
- 94owner reports
- 74,000median miles
- $10,490median quote
- 0involved a crash
Newest report Sep 21, 2026 · checked Oct 2, 2026
393 of the 646 complaints on this car are about the engine. 94 of those describe misfire.
Narrower sheets: Engine misfire (30 reports)
Tick what matches of 94 reports
Misfire on other Sierra 1500 years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2014, 2015, 2016, 2017, 2018, 2025, 2026.
What this problem usually is
These reports start with the check engine light. Many describe the engine running rough or shaking at idle, a P0300-series code, or a catalytic converter code. A worrying number say the light was flashing. Owners often list ignition coils or spark plugs already replaced, and the light coming back afterward.
What got replaced
Owners who name the part that was replaced mention the spark plugs (5 reports), the injectors (5 reports), the sensor (4 reports) and the ignition coils (3 reports).
Recalls and investigations
One recall on the engine covers the 2019 model year. A recall on the same system isn't always the same failure, so read the defect text.
The battery positive (B+) cable rings may have been manufactured with excessive glue, potentially causing an intermittent electrical connection between the B+ cable and alternator.
All 10 recalls on the 2019 GMC Sierra 1500, with the owner complaints on each recalled system
NHTSA investigations into the engine on the Sierra 1500
Loss of motive power due to engine failure post recall remedy. Open.
Loss of motive power due to engine failure post recall remedy. Closed aug 20, 2026.
Loss of motive power due to engine failure. Open.
Loss of motive power due to engine failure. Closed oct 23, 2025, led to recall 25V-274.
Pedestrian alert sounds. Closed aug 7, 2023, led to recall 22V-063.
Non-crash engine compartment fires. Closed sep 8, 2008, led to recall 08V-441.
Non-crash engine compartment fires. Closed jun 12, 2008.
What owners paid
17 of the 94 reports quote a price. Each dot is one quote. The middle half runs $1,708 to $12,500.
When it happens
The middle half of failures fell between 40,000 and 100,000 miles, from the 43 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 52 service bulletins or notices for the 2019 GMC Sierra 1500 that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
Certain vehicles, may have a condition that could cause the Catalytic Converter to fail. If this failure occurs, the Malfunction Indicator Light (Check Engine Light) will illuminate, and a diagnostic trouble code will set.
This bulletin advises the tech that the Exhaust Roller Follower may be the issue with the engine Ticking noise, misfire or rough run and what to replace if found the cause.
This technical bulletin provides repair information to correct a customer concern of Evaporative DTCs P0442, P0446, P0455 or P0449, Caused by Dust Intrusion into the Evaporative Canister.
This service bulletin provides repair information for Engine Wire Harness Chafing to correct customer concerns of IPC Gauges Sweep, IPC Warning Message, SES/Check Engine/MIL, No Start/ No Crank, Runs Rough, Stalls, Reduced Engine Power, Various DTCs.
48 more on the 2019 GMC Sierra 1500 page.
What owners wrote
“Engine ceased while driving and shutdown. Towed to dealership. Dealership ran diagnostic test and code P0016 came up. Its 6.2 engine has recall on other years with similar issues”
Filed May 1, 2026
“Lifter failure cylinder #8, this is a 2019 GMC Sierra Denali 4x4. It has a 6.2L engine. With 92823 miles on it. It would be nice if GM would do a recall on this year motor as well.”
Filed Apr 16, 2026 · 92,823 miles
“My vehicle is at the dealership now - it wasnât starting properly, started always getting low on oil which I took to the dealership for them to monitor- and then the check engine light came on- once that came on just last Thursday I did not drive the vehicle except to the dealership to be inspected - which my appt was Monday and they found metal shavings in the oil and said the whole engine needs replacement!”
Filed Apr 2, 2026
“cylinder #1 had misfire and this was because the liftt malfunctioned which inturn caused it to grind on camshaft”
Filed Feb 10, 2025
Should you keep driving it?
This page can't tell you that. 0 of 94 reports involved a crash and 1 people were hurt. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Which lights mean pull over now? Warning lights by color and urgency
Other problems on this car
- Engine failure, knocking or rod bearing 157 reports
- Brakes grind, pulse or wear early 112 reports
- Engine stalls or loses power while driving 105 reports
- Transmission shudders, slips or shifts hard 63 reports
- Infotainment, screen or backup camera fails 41 reports
- Engine rattles or ticks 30 reports
- Power steering cuts out or goes heavy 26 reports