The Lemon IndexAll cars · GMC · GMC Sierra 2500HD/3500HD
2024 GMC Sierra 2500HD/3500HD problems, engines and recalls.
Owners filed 161 complaints with the government about the 2024 GMC Sierra 2500HD/3500HD, most often about electrical (30%).
Which engine is in it
159 of the 161 complaints have a VIN we could decode, which tells us the engine.
| Engine | Share | Complaints | What they name most |
|---|---|---|---|
| 6.6 Duramax L5P diesel | 82% | 130 | electrical 32%, transmission & drivetrain 27%, brakes 17% |
| 6.6 V8 gas (L8T) | 18% | 29 | too few to split |
Each diesel's page: Duramax L5P.
Nearby model years
What owners complain about
Share of this year's complaints that name each area.
When problems show up
Half of the owners who gave a mileage reported the problem between 2,900 and 48,000 miles; the middle report was at 18,410 miles (41 complaints with a mileage).
How serious
| Crashes | Fires | Injury reports | Death reports | Towed |
|---|---|---|---|---|
| 2 | 3 | 2 | 0 | 8 |
As reported by owners to NHTSA, not verified.
In owners' words
The control valve body failed. There are so many, that there was a shortage of parts. Had to take it in as it went into limp mode. 34,000 miles. There were dozens of trucks, same year, waiting for the same repair. Shop says probably every truck will need it. It is a known issue.
2024 GMC Sierra 2500HD/3500HD owner · NHTSA complaint 11759764
Transmission valve body failure contestant with Recall # N242454440. Dealer diagnosed valve body failure and corrective action of Valve body rebuild. I would like 2024 models to be included with this recall for proper repair per Special Coverage # N242454441.
2024 GMC Sierra 2500HD/3500HD owner · NHTSA complaint 11738513
IOK Radio Module failure. Inhibits hands free calling, total loss of all audio including safety chimes, dropped emergency call capability, multiple software updates have failed to resolve it. Vehicle is still under warranty.
2024 GMC Sierra 2500HD/3500HD owner · NHTSA complaint 11734424
Recalls 4
26V530000 Aug 2026 Tires
General Motors, LLC (GM) is recalling certain 2024-2025 Chevrolet Silverado 2500 and GMC Sierra 2500 vehicles equipped with the enhanced towing option and 20-inch accessory tire/wheel package. The tire information label may state the incorrect rear tire pressure, resulting in underinflated tires and preventing the tire pressure monitoring system (TPMS) from displaying a low tire pressure warning.
Fix. Dealers will inspect, update the engine control module (ECM) software, apply a tire label overlay, inflate tires to the correct pressure, and perform a tire pressure monitor system (TPMS) re-learn process as necessary, free of charge. Owner notification letters were mailed September 17, 2026. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782.
24V894000 Nov 2024 Latches/Locks/Linkages
General Motors, LLC (GM) is recalling certain 2024 Chevrolet Silverado HD 2500, 3500, and GMC Sierra HD 2500, 3500 vehicles equipped with power-unlatching tailgates. The tailgate's electronic gate-release switch may short circuit due to water intrusion, which can result in the tailgate inadvertently unlatching while the vehicle is in Park.
Fix. Owners are advised to check that the tailgate is closed and latched before driving. Dealers will replace the exterior touchpad switch assemblies, free of charge. Owner notification letters were mailed December 17, 2024. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is N242469160. This recall is an expansi
24V060000 Feb 2024 Latches/Locks/Linkages
General Motors, LLC (GM) is recalling certain 2020-2024 Chevrolet Silverado 2500, 3500, GMC Sierra 2500 and 3500 vehicles equipped with power-unlatching tailgates. The tailgate's electronic gate-release switch may short circuit due to water intrusion, which can result in the tailgate inadvertently unlatching while the vehicle is in park.
Fix. Owners are advised to check that the tailgate is closed and latched before driving. Dealers will replace the exterior touchpad switch assemblies, free of charge. Owner notification letters were mailed May 17, 2024. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is N232426400.
23V549000 Aug 2023 Steering
General Motors, LLC (GM) is recalling certain 2024 Chevrolet Silverado 2500, 3500, and GMC Sierra 2500, 3500 vehicles. The steering gear shaft may fracture and disconnect from the steering arm.
Fix. Dealers will inspect and replace the steering gear, if necessary, free of charge. Owner notification letters were mailed September 22, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is N232414720.
NHTSA recalls for this model year under every name these trucks are filed under. A recall that names an engine applies only to trucks with it. Free at any dealer: check the VIN.
Quick answers
Is the 2024 Sierra HD reliable?
We can't score it per truck (heavy-duty sales aren't reported apart from the half-ton). Owners filed 161 complaints about it, most often about electrical (30% of them). Compare the diesel generations on their engine pages.
What engine does the 2024 Sierra HD have?
By the VINs in owner complaints: 6.6 Duramax L5P diesel (82%), 6.6 V8 gas (L8T) (18%).
How many recalls does the 2024 GMC Sierra 2500HD/3500HD have?
4. Recall repairs are free at any dealer; check the truck's VIN at nhtsa.gov/recalls.
The whole-line score for 2024, mostly half-tons: 2024 GMC Sierra.
No Lemon Index score: automakers report heavy-duty pickup sales together with the half-ton (one F-Series, Ram or Silverado number), so there is no honest per-truck denominator. These are counts and shares of owner complaints, not failure rates. Complaints: NHTSA owner complaints filed under the truck's 2500/3500 (F-250/F-350) names, all years filed, one per complaint number. Engine: decoded from the complaint's VIN (position 8 is the engine code) with NHTSA's vPIC decoder. Complaints filed as just “Silverado” or “Sierra” are left out (they mix 1500s and HDs). Older trucks have had more years to collect complaints, and popular years draw more because more were sold.
Updated · Free to use with credit: Source: The Lemon Index (lemonindex.com)
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