Own a GMC Sierra 2500 in the Phoenix area? EZ Swap LLC repairs and maintains the GMC Sierra 2500 for model years 2007, 2009 to 2026. Our shop at 9050 N 9th St handles everything from routine service to diagnostics and major repairs.
To help Sierra 2500 owners know what to watch for, we reviewed public records from the National Highway Traffic Safety Administration (NHTSA). For these model years NHTSA has 1,323 owner complaints on file for the Sierra 2500 and 38 safety recall campaigns. The most-reported problem areas are electrical system (195), power train (189), air bags (166).
Most-Reported GMC Sierra 2500 Problems
These problem areas come up most often in NHTSA owner complaints for the Sierra 2500 (all model years combined). Complaint counts reflect reports filed, not the share of vehicles affected, so popular and older models naturally have more.
| Problem area (NHTSA component) | Complaints | Share | |
|---|---|---|---|
| Electrical System | 195 | 14% | |
| Power Train | 189 | 14% | |
| Air Bags | 166 | 12% | |
| Exterior Lighting | 155 | 11% | |
| Engine | 128 | 9% | |
| Service Brakes | 121 | 9% | |
| Structure | 101 | 7% | |
| Steering | 89 | 6% |
Electrical System
195 of the 1,323 complaints (14%) mention the electrical system. Electrical problems are made worse by desert heat, which ages batteries, cables and connectors. We test the battery, starter and charging system and trace faults to the actual part. See our battery replacement and starter & alternator repair pages.
Power Train
189 of the 1,323 complaints (14%) mention the powertrain. Powertrain complaints can range from rough shifting to loss of drive. We road test, scan for stored codes and inspect fluids before recommending any repair. See our auto repair page.
Air Bags
166 of the 1,323 complaints (12%) mention airbags and seat belts. Airbag and restraint issues are often tied to open safety recalls, which are repaired by the manufacturer at no cost to you. Check your VIN on NHTSA's recall lookup first, and we can help with related warning lights and diagnostics. See our auto repair page.
GMC Sierra 2500 Complaints by Model Year
The Sierra 2500 model years with the most NHTSA complaints on file are 2015, 2014, 2011. Older model years have had more time to collect reports, so use this table as a guide for what to inspect, not as a verdict on any one vehicle.
| Model year | Complaints on file | |
|---|---|---|
| 2007 | 83 | |
| 2009 | 68 | |
| 2010 | 59 | |
| 2011 | 106 | |
| 2012 | 60 | |
| 2013 | 85 | |
| 2014 | 131 | |
| 2015 | 147 | |
| 2016 | 65 | |
| 2017 | 98 | |
| 2018 | 35 | |
| 2019 | 32 | |
| 2020 | 79 | |
| 2021 | 52 | |
| 2022 | 44 | |
| 2023 | 33 | |
| 2024 | 106 | |
| 2025 | 28 | |
| 2026 | 12 |
Most Common GMC Sierra 2500 Check Engine Codes
Owners often put the exact trouble code in their NHTSA complaint. These are the codes cited most often for the Sierra 2500. The most-cited is P0747 (powertrain code), mentioned in 6 complaints. Counts reflect complaints that name a code, not every car on the road.
| Code | What it means | Complaints citing it |
|---|---|---|
| P0747 | Powertrain code A scan and test is needed to confirm what this code means for your vehicle. | 6 |
| P0700 | Transmission control system malfunction The transmission computer stored its own code. A scan of the transmission module shows the real fault. | 5 |
| P20B9 | Powertrain code A scan and test is needed to confirm what this code means for your vehicle. | 2 |
| U0101 | Lost communication with transmission control module Wiring, battery or module power fault. | 2 |
A code is a clue, not a diagnosis. The same code can have several causes, so we test before replacing parts. See our check engine light diagnostics, and read whether it is safe to drive with the check engine light on.
GMC Sierra 2500 Safety Recalls
NHTSA lists 38 recall campaigns for the Sierra 2500 in these model years, most often involving air bags, seat belts, service brakes, hydraulic. Recalls are repaired by the manufacturer at no charge to you, but each applies only to certain vehicles. Look up your VIN at nhtsa.gov/recalls.
- 2026 recall, Air Bags (campaign 26V611000): General Motors, LLC (GM) is recalling certain 2016 Chevrolet Silverado 2500/3500, GMC Sierra 2500/3500 vehicles, and 2016-2017 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles.
- 2026 recall, Air Bags (campaign 26V166000): General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, GMC Sierra 1500, 2019 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500, and Sierra 3500 Crew Cab vehicles.
- 2026 recall, Air Bags (campaign 26V325000): General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, GMC Sierra 1500, 2019 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500, and Sierra 3500 vehicles.
- 2026 recall, Power Train (campaign 26V083000): General Motors, LLC is recalling certain 2020 Chevrolet Silverado 2500, 3500, GMC Sierra 2500, 3500, and 2020-2022 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles that may have been repaired incorrectly under recall 24V797.
- 2026 recall, Tires (campaign 26V530000): 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.
- 2025 recall, Air Bags (campaign 25V432000): General Motors (GM) is recalling certain 2018 GMC Sierra 1500, 2019 Sierra 2500, 3500, Chevrolet Silverado 3500, and Chevrolet Silverado 2500 and 2018 Chevrolet Silverado 1500 Crew Cab vehicles.
Serious Incident Reports
Of the NHTSA complaints on file for the Sierra 2500, 61 involved a crash, 31 involved a fire, 60 reported injuries. These numbers are drawn from self-reported complaints and are not verified findings. If your vehicle has an open recall, get it repaired promptly.
Keeping a GMC Sierra 2500 Reliable in Phoenix
Arizona heat is the hardest test a GMC will face. Batteries, belts, hoses, tires and engine oil all wear faster here, and a Sierra 2500 that spends its life in stop-and-go Valley traffic needs maintenance earlier than the owner's manual's normal schedule suggests.
Our recommendation for Sierra 2500 owners: follow the severe-service schedule, test the battery before every summer, inspect brakes and tires twice a year, and have any warning light diagnosed instead of ignored. If you are shopping for a used GMC Sierra 2500, a pre-purchase inspection shows what the paperwork does not.
GMC Sierra 2500 Services at EZ Swap LLC
Get the details on our Phoenix GMC Sierra 2500 repair service, or choose a service below.
Battery Replacement
Test, replace and protect against Phoenix heat.
Details →Starter & Alternator Repair
Charging and starting system repair.
Details →Auto Repair
All makes and models, from domestic trucks to imports.
Details →Oil Change & Maintenance
Oil, filters, fluids, tires and scheduled service.
Details →Car A/C Repair
Phoenix heat demands cold air.
Details →GMC Sierra 2500 FAQ
What are the most common problems with the GMC Sierra 2500?
Based on NHTSA owner complaints, the most-reported problem areas for the GMC Sierra 2500 are electrical system (195), power train (189), air bags (166). Complaint counts reflect reports filed, not the share of vehicles affected.
Which Sierra 2500 model years have the most complaints?
The Sierra 2500 model years with the most NHTSA complaints on file are 2015, 2014, 2011. Older years have had longer to collect reports, so inspect any specific vehicle before buying.
What are the most common check engine codes on the GMC Sierra 2500?
In NHTSA owner complaints for the GMC Sierra 2500, the codes cited most often are P0747 (powertrain code), P0700 (transmission control system malfunction), P20B9 (powertrain code). A code points to a system, and testing confirms the actual failed part.
Does the GMC Sierra 2500 have any safety recalls?
NHTSA lists 38 recall campaigns for the GMC Sierra 2500 across model years 2007, 2009 to 2026. Each recall applies only to certain vehicles, so enter your VIN at nhtsa.gov/recalls to see if yours is affected.
Do you repair the GMC Sierra 2500 in Phoenix?
Yes. EZ Swap LLC repairs and maintains GMC vehicles including the Sierra 2500, at 9050 N 9th St in Phoenix. Call or text (602) 246-9063 for an appointment.
Is a pre-purchase inspection worth it for a used GMC Sierra 2500?
Yes. An inspection checks the engine, transmission, brakes, suspension, A/C and electrical system, and scans for stored codes, so you know the real condition before you buy.
How often should I service my GMC Sierra 2500 in Phoenix?
Follow the severe-service schedule in your owner's manual, since heat and stop-and-go driving count as severe use. Test the battery before summer and inspect brakes and tires regularly.
More GMC Models We Service
Source: public complaint and recall records from the National Highway Traffic Safety Administration (nhtsa.gov). Counts reflect reports filed and do not predict the condition of any individual vehicle.