Complaint volume
385 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
2023 GMC Sierra Complaints
385 consumer-submitted complaints on record for the 2023 GMC Sierra, grouped by component category.
385 Total complaints
5 Crash reports
2 Fire reports
1 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, structure, power train. Use those categories as a test-drive checklist instead of judging the vehicle from the total count alone.
Severity flags
Enriched records include 5 crash reports, 2 fire reports, 1 injury report, and 0 fatality reports. These fields come from complaint records and should be read in context.
Mileage clue
Mileage is available on 35 complaints, with an average reported failure mileage of 28,649 miles. Compare that with the mileage on the listing.
Questions to ask the seller
- Have you had any problems related to engine, structure, power train?
- 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 2023 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.
2023 GMC Sierra
Build buyer checklist Compare with other years Sends year, make, and model to pre-fill your checklist.
How severe are the 2023 GMC Sierra complaints?
5 Crash
2 Fire
1 Injury
0 Fatality
11 Towed
0 Medical attention
What are the most common 2023 GMC Sierra complaint categories?
ENGINE 120
STRUCTURE 44
POWER TRAIN 40
UNKNOWN OR OTHER 23
ENGINE AND ENGINE COOLING 18
ELECTRICAL SYSTEM 16
POWER TRAIN,ENGINE 14
ENGINE,FUEL/PROPULSION SYSTEM 7
FUEL/PROPULSION SYSTEM 6
EXTERIOR LIGHTING 5
385 total complaints on record
Latest complaints
| Date | Component | Summary | Severity | Mileage |
|---|---|---|---|---|
| May 2025 | ELECTRICAL SYSTEM,ENGINE | Driving on hwy at 60 mph on regular day going home and trucks all off sudden started rattling and engine knocking very loud , engine started crashing loosing power , has to merge to side of road and call tow truck | Crash: No Fire: No | Unknown |
| May 2025 | STRUCTURE | Top piece of grill trim tabs broken and trim piece coming loose | Crash: No Fire: No | Unknown |
| May 2025 | UNKNOWN OR OTHER | Gm has acknowledged there is a safety risk to continue driving my truck due to potential engine failure. I was prompted to take it to service to have the issue assesed which I did. The dealer said they would not inspect it because there is no resolution approved. I offered on 45/1/25 to pay them to check it out but they refused. This is dangerous and unacceptable, I hope you can help. | Crash: No Fire: No | Unknown |
| May 2025 | ENGINE | The 6.2 liter engine spun the #1 and #3 crankshaft bearings. This was confirmed by the selling dealership, Guess Motors, who performed the engine teardown. This complete engine failure was not foretold by any warnings whatsoever. I was able to drive vehicle to the dealership before it stopped running. The dealership has ordered a replacement entire engine from GM however no delivery date has been received and this occurred on 04-04-2025. On 04-24-2025 GM issued recall # N252494001 on this engine configuration. | Crash: No Fire: No | Unknown |
| May 2025 | POWER TRAIN,ENGINE | First GMC had my car 6 weeks for a problem with the coolant control valve which failed making the truck underivable. They couldn't fix it due to not being able to get the part with a national backorder. After a few weeks having the truck back I started having erratic bucking and shifting problems and once again the engine light came on and then truck went into limp mode. Felt like the truck got stuck in one gear and was dangerous to drive. I felt unsafe operating it even to limp back to the dealer. The incident with transmission happened at high speed on interstate 95. Kinda scary. They have told me they can't fix my truck for a minimum of 6-8 weeks, but I was told that would be a miracle. So service told me probably be 10-12 weeks if they can't get the parts. If they can! | Crash: No Fire: No | Unknown |
| May 2025 | SERVICE BRAKES | While driving on the highway warning lights for ABS, Check Engine, traction control and towing disabled came on. Also, the truck was limited to a speed of 62 mph. When attempting to apply the brakes the peddle went to the floor and the truck was extremely hard to stop. Power brakes were gone and manual braking was the only way to stop. After pulling over and restarting the truck the power brakes came back. The truck was taken to the dealer and they claimed the truck needed some updates and was fixed. About four months later this same problem occurred again while coming to a stop causing the truck to miss a stop sign and enter an intersection. The same lights came on and the trucks speed was reduced. After restarting the truck the power brakes started working again and the truck was dropped off to the dealership. The dealer looked into the problems and said the truck needed computer updates but found no other problems. Driving this truck has become nerve racking not knowing if the brakes will stop working again. | Crash: No Fire: No | Unknown |
| Apr 2025 | POWER TRAIN,ENGINE | I was driving down the highway on cruise control and all of the sudden i heard a squeal, banging noise with no power to accelerate so i pulled over to the side of the road and the engine said low oil pressure and shut down and would not restart. Multiple vehicles swerved to avoid hitting my vehicle creating a safety incident with possible injury and death. No symptoms prior to the failure and vehicle was maintained according to GMC specifications at the dealer with oil changes and tire rotations. Dealer has confirmed engine needs to be replaced but after several weeks they say they are unable to replace the engine because no parts are available and no estimated repair date. This is completely unacceptable and not a timely repair. I am without a truck and still paying for the loan of the truck with interest through GM financial. | Crash: No Fire: No | Unknown |
| Apr 2025 | ENGINE | I was with my two kids about to go on the highway as I accelerated at the speed of the 60 mph the truck completely shuts down I managed to move to the right shoulder my miraculously had to wait for a tow truck for 3 hours. Got truck towed to the dealership they told me it needed an engine and its back order took them 4 weeks to get ot done 2 days later check engine light came back on I was told only a misfire. I was without my truck for another 2 weeks. All this happened back in January of 2025 | Crash: No Fire: No | Unknown |
| Apr 2025 | ENGINE | While driving on the interstate at approximately 80 mph the engine sounded like it started revving to its max and then it lost power and would not go anymore so I had to try and get to the side of the highway before the momentum stopped. There was no warning lights, indications, or recall notices that this was going to happen. And then had to wait about 2 hours for a tow truck on the side of the interstate. Then the dealership said my engine was seized up and they put a new motor in which took about 2 weeks and they wouldn't give me a loaner vehicle so my husband had to drive approx 3 hours to pick up me and my daughter. I no longer have my invoice that the dealership gave me after the repairs were performed. So after that I was leary of that happening again and traded the vehicle and took a huge loss in trade value not too long after the incident. | Crash: No Fire: No | Unknown |
| Apr 2025 | ENGINE AND ENGINE COOLING | The contact owns a 2023 GMC Sierra 1500. The contact was notified of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The local dealer was made aware of the issue and confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available. | Crash: No Fire: No | Unknown |
| Apr 2025 | STRUCTURE | Upper grille came off and fractured windshield while going down the highway it is a non serviceable part by GM which I believe is strategic seeing that they’ve had issues with earlier models of the the truck you have to buy an entire replacement grille for one issue that shouldn’t be happening was never able to locate part, I assume plastic grille clips dry rotted noticed the part lifted a bit before the entire part failed thought someone was trying to break into my truck . The wind while going down the highway caused them to fail, I’ve seen multiple GMC sierras with the same grille issue, I uploaded before and after pictures of how the truck looked before and after pictures . | Crash: No Fire: No | Unknown |
| Apr 2025 | ENGINE AND ENGINE COOLING,ENGINE | The contact owns a 2023 GMC Sierra 1500. The contact stated that upon starting the vehicle, there was an abnormal ticking sound coming from the engine. There was no warning light illuminated. The contact discovered that the VIN was included in NHTSA Campaign Number: 25V274000 (Engine, Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The local dealer was made aware of the issue and confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The failure. mileage was approximately 100. VIN tool confirms parts not available. | Crash: No Fire: No | 100 |
| Apr 2025 | POWER TRAIN | Engine Cooling system We were stuck on side of freeway then told to drive to dealership but kept dying and saying it was overheating could only drive 7mph off freeway. Yes dealer confirmed with computer test that coolant flow control valve was malfunctioning. On approximately April 8th 2025 we were on vacation in Biloxi MS we got check engine light took to Dealership in Biloxi. Put on computer said it was coolant control valve they reset it but said parts on National back order but we were fine to finish our vacation and head home. Got to Albuquerque NM on April 22nd it overheated couldn’t go over 5 miles per hour got to Albuquerque dealership couldn’t go any farther they tried to reset but truck would drive more than 5 miles per hour. Told us we would have to leave it part was on back order no idea when it would be available. We had to rent a car to drive to our home in Az . | Crash: No Fire: No | Unknown |
| Apr 2025 | POWER TRAIN,ENGINE | Multiple occasions where the dash lights up while driving, the vehicle will slow down to 40 miles per hour while driving and notes on the dash the truck acceleration will be reduced. It has almost caused accidents while I’ve been driving on the interstate. The truck will jerk and shake and jolt. Multiple sensors have been replaced including drive shaft, crank shaft components and cooling valve components. I’ve also been complained about burning smells and my engine started smoking recently which caused my family to evacuate the vehicle. I believe my vehicle has same issues as the other recall on GMC Sierra 2021-2024 with engine issues | Crash: No Fire: No | Unknown |
| Apr 2025 | ELECTRICAL SYSTEM,UNKNOWN OR OTHER | 2023 GMC 1500 Sierra Denali Ultimate tailgate opens without being commanded. This has happened approximately three (3 ) times in the last two months while being driven with the most recent incident occurring today, 04/27/2025. There are no warning lights indicating when a tailgate opens while the vehicle is being driven. | Crash: No Fire: No | Unknown |
| Apr 2025 | ENGINE | We were driving to dinner on March 28, 2025, when our 2023 GMC Sierra truck with just over 22,000 miles started making a clanking sound with major hesitation while trying to accelerate. At highway speeds, the truck lost nearly all power. We made it to the dealership, which was closer than home. Upon pulling in the parking lot, the truck died and we were unable to start it. The truck was actively losing power on the freeway and hesitating, we were fearful it would die on the freeway in 6 pm traffic. On March 29, 2025, we spoke with a service manager who said it sounded like the motor was blown. On April 2nd, Autonation GMC Corpus Christi South confirmed the oil pan was full of metal shavings and they were ordering a new motor. Upon asking for an estimation of how long we would be without our vehicle, the service advisor said he wasn’t taking it out of the bay and we should have it back by April 15. The check engine light did not come on until 1/4 mile from exiting the highway. On April 12, 2025, we texted the service advisor to make sure the truck would be ready on April 15, 2025. He responded that the motor still hadn’t come in and he would let us know when it did. On April 17, 2025, I escalated his from the service advisor to the service manager for Autonation. I was informed the motor had not been ordered, but he would order it and have the motor broken down to meet GM’s requirement. April 24, 2025, motor has been ordered, but no ETA or location of the motor. | Crash: No Fire: No | Unknown |
| Apr 2025 | ENGINE | While driving the vehicle the vehicle stopped, and engine seized. I could not move the vehicle out of neutral nor restart the vehicle to get out of the road. It was towed to our local dealership's service department on 2/16/25 and has been there since. They are stating the vehicle needs a new engine and the engine is on backorder. OF COURSE! This seems to be an ongoing issue with the 6.2L V8 engine for GMC vehicles. | Crash: No Fire: No | Unknown |
| Apr 2025 | ENGINE | Had an engine seizure with no warning. The event occurred on 03/22/2025. The vehicle has been in the dealership since then, with no line of sight to a replacement engine. The vehicle had barely over 15k miles. When the engine seized, it went to neutral, there was not power stirring and no breaks. I was fortunate that it was in a residential area, and my speed was below 30 miles an hour when it happened. The dealer is going to replace the motor when they get it, but it sounds like the engine is back ordered, as this exact issue has been happening to multiple vehicles. Like I said, there were no warning lamps, or messages; the engine just stopped working. | Crash: No Fire: No | Unknown |
| Apr 2025 | ENGINE | GM needs to look at the excessive failures on their Engine Coolant Control Valve on the 3.0 Duramax Diesel engines. Mine failed at under 35K miles and it looks to be weeks or months before a part is available. | Crash: No Fire: No | Unknown |
| Apr 2025 | ENGINE | While my husband was driving on the NJ Turnpike at 65 mph, his truck just shut off!! . This was very dangerous, he had to try to get over from the left lane, all the way to the shoulder and park the truck. How has this not been taken care of yet? This needs to be looked into, he could have been in an accident. GMC is aware of this problem but has not recalled these trucks. Please make this known to the public, this is very dangerous!! To add insult to injury, we now are told that we have to pay to replace the engine and the truck is less than 2 years old. How is that right? The warranty is out (60k miles warranty) because my husbands drives a lot of highway miles (80k on truck) to and from work so they say it will cost us $9,000 dollars to replace. Since we still have payments on our truck, we have no choice but to get it repaired. Knowing this is an issue and it should be recalled, this is wrong! I am concerned this will happen again, if they replace it with the same engine. Please help! | Crash: No Fire: No | Unknown |
| Apr 2025 | ENGINE | My 2023 GMC Sierra 1500 AT4X with 25,000 miles equipped with the 6.2L V8 engine, has experienced engine issues and total failure. Dave Sinclair a GM dealer in St. Louis Missouri indicated that bearing failure and lower lifter defects led to engine seizure, engine failure and block damage. This resulting in the need for a new/ replacement engine. I brought my GMC into Dave Sinclair service center on 2-11-2025 due to engine knocking and loss of power, then on [XXX] experienced complete engine failure and total breakdown on [XXX] resulting in traffic risks and issues. No warning lamps or messages. I routinely have the vehicle maintained at Dave Sinclair per their recommend mileage/time. As of 4-18-2025 I've not receive a replacement engine. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) | Crash: No Fire: No | Unknown |
| Apr 2025 | ENGINE | On [XXX] I was traveling at highway speed south on [XXX] . I was driving my 2023 GM [XXX] The truck had 36,199 miles at the time of the incident. The engine is a 6.2 L EcoTec3 V8. While traveling at highway speed, without any warning, the engine shut down. The shift indicator displayed the vehicle being in neutral. When I tried to shift back into gear, a dashboard display stated "The current conditions are not suited for shifting." Fortunately I was able to coast onto the center median, off the traveled protion of the roadway without incident. I contacted the New Jersey State Police. They sent a tow operator to my location, and I was towed to Lester Glenn Buick-GMC in Tom's River, NJ The next day a representative from the service department informed me the vehicle suffered a catastrophic engine failure. The engine completely seized and the vehicle would need a complete engine replacement. The reason for the engine seizure has not been determined as of this time. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) | Crash: No Fire: No | Unknown |
| Apr 2025 | ENGINE | While driving on a mountain highway pulling a light duty trailer coasting downhill, the truck went into Nuetral and lost all power. There was no warning lights or messages prior to failure. The display showed "Unable to shift under current conditions". Luckily I was in the right lane and had enough momentum to be able to coast into a breakdown lane on a slight grade with my trailer. The electronics still worked, but the engine would no longer turn over or shift into gear. Had the vehicle towed to the dealer I bought it from and the tech said the engine will need to be replaced. I was lucky this did not cause a catastrophic failure while driving at highway speeds and was able to bring the vehicle (and trailer) to a stop safely. There is already an open investigation against this problem on the NHTSA website, and the claims look very similar to my experience. | Crash: No Fire: No | Unknown |
| Apr 2025 | ELECTRICAL SYSTEM,SERVICE BRAKES,ENGINE | Engine has seized twice, completely shutting down without electrical power or brakes. The vehicle also shut down in an intersection (no power, brakes, flashers). I was able to pull to the side on the 2 engine seizures but not during the electrical shutdown at the intersection in the turn lane. The engine was replaced the first time by Quality GMC in Albuquerque, NM. The 2nd engine is being replaced by Diamond GMC in Palmdale, CA. Warning lamps on the 1st engine seizure was tire pressure warning. The electrical shutdown was forward collision warning, emergency braking, etc. The 2nd engine seizure said something about engine needed to be restarted. | Crash: No Fire: No | Unknown |
| Apr 2025 | ENGINE | Engine failed and it is available for inspection upon request The engine started coasting down a major highway and it put myself and others on the road at risk. The dealer has confirmed that this 6.2 L engine has been giving the dealership problems with these GMCs. The vehicle has only been inspected by the Dealership. The Warning Message stated that I needed to restart the engine; however, you can't do that on a major highway due to pressing the break. The vehicle was already on; however, the engine was not connected. No other symptoms were happening prior to the incident. The engine trouble appears only at this incident. | Crash: No Fire: No | Unknown |