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2014 GMC Sierra problems, recalls and owner complaints
What the 2014 GMC Sierra has been recalled for and what owners report, from official government data. Updated October 25, 2026.
- 11safety recalls
- 900owner complaints
- 33crash reports
- 10fire reports
- 26injuries reported
900 complaints, against an average of 456 for the other 14 GMC Sierra model years.
Every GMC Sierra model year with its number of owner complaints. Pick a year to compare.
What goes wrong with the 2014 GMC Sierra?
The components named most often in the 900 owner complaints. One complaint can name several, so the shares can add up to more than 100%.
What symptoms do 2014 GMC Sierra owners describe?
Found by reading the text of all 900 owner complaints. Tap a symptom for the answer, a real owner quote and any related recall.
- Why do the headlights or taillights fail on my 2014 GMC Sierra?102 owners · 11.3%
- Why does my 2014 GMC Sierra stall, lose power or shut off while driving?68 owners · 7.6%
- Why is the air conditioning not blowing cold in my 2014 GMC Sierra?45 owners · 5%
- Why does the power steering fail or feel heavy on my 2014 GMC Sierra?38 owners · 4.2% · Recall 17V414000
- Does the 2014 GMC Sierra have rust or paint problems?30 owners · 3.3%
- Why do the brakes feel soft, fail or make noise on my 2014 GMC Sierra?28 owners · 3.1% · Recall 19V761000
Has the 2014 GMC Sierra been recalled?
11 U.S. safety recalls. Repairs are free at a franchised dealer; some are done over the air.
Seat Belts: Front General Motors, LLC (GM) is recalling certain 2014-2016 Chevrolet Silverado 1500, 2015-2016 Chevrolet Tahoe, and 2014-2015 GMC Sierra 1500 vehicles that may have received an incorrect replacement tensioner cable assembly as part of a previous recall remedy or a subsequent repair. The flexible steel cable connecting the driver's seat belt to the outboard side of the seat may be repeatedly bent over the seat side shield as the driver enters and exits the vehicle causing the cable to fatigue and separate.
Risk: A broken pretensioner cable reduces the effectiveness of the driver's seat belt, increasing the risk of injury.
Fix: GM will notify owners, and dealers will replace the driver seat belt lap pretensioner, free of charge. The recall began on May 5, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020, and GMC customer service at 1-800-462-8782. GM's number for this recall is N212330040.
Air Bags: Frontal: Passenger Side: Inflator Module General Motors, LLC (GM) is recalling certain 2014 Cadillac Escalade, Escalade ESV, Chevrolet Silverado 2500, Silverado 3500, Suburban, Tahoe, GMC Sierra 2500, Sierra 3500, Yukon, and Yukon XL vehicles originally sold, or ever registered, in the states of AL, CA, FL, GA, HI, LA, MS, SC, TX, PR, AS, GU, the MP, and VI or "Zone A." Additionally GM is recalling certain 2011-2014 Cadillac Escalade, Escalade ESV, Chevrolet Silverado 2500, Silverado 3500, Suburban, Tahoe, GMC Sierra 2500, Sierra 3500, Yukon, Yukon XL and 2011-2013 Cadillac Escalade EXT, Chevrolet Avalanche, Silverado 1500, and GMC Sierra 1500 vehicles originally sold, or ever registered, in the states of AZ, AR, DE, DC, IL, IN, KS, KY, MD, MO, NE, NV, NJ, NM, NC, OH, OK, PA, TN, VA, and WV or "Zone B." Additionally, GM is recalling certain 2010-2014 Cadillac Escalade, Escalade ESV, Chevrolet Silverado 2500, Silverado 3500, Suburban, Tahoe, GMC Sierra 2500, Sierra 3500, Yukon, and Yukon XL and 2010-2013 Cadillac Escalade EXT, Chevrolet Avalanche, Silverado 1500, and GMC Sierra 1500 vehicles originally sold, or ever registered, in the states of AK, CO, CT, ID, IA, ME, MA, MI, MN, MT, NH, NY, ND, OR, RI, SD, UT, VT, WA, WI, and WY or "Zone C." These vehicles are equipped with non-desiccated passenger frontal inflators containing phase-stabilized ammonium nitrate (PSAN) propellant. These inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high temperature cycling.
Risk: An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.
Fix: GM will notify owners, and dealers will replace the front passenger air bag inflator with an alternate one, free of charge. Interim letters notifying owners of the safety risk were mailed on February 25, 2021. Second notification letters will be mailed once the remedy is available. Owner notification letters were mailed to 40 VIN owners on May 11, 2021. A second owner notification letter was mailed to all other owners on January 24, 2022. Owners may contact Chevrolet customer service at 1-800-222-1020; Cadillac customer service at 1-800-458-8006; and GMC customer service at 1-800-462-8782. GM's number for this recall is N212328800.
Service Brakes, Hydraulic: Antilock/Traction Control/Electronic Limited Slip: Wheel Speed Sensor/Tone Ring General Motors LLC (GM) is recalling certain 2015-2020 Chevrolet Suburban, Tahoe, and GMC Yukon, and 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 5.3-liter engine, a 3.08-ratio rear axle and four-wheel drive. If a wheel-speed sensor fails, while the vehicle is traveling between 41 and 60 mph in four-wheel or automatic mode, the Electronic-Brake Control Module (EBCM) software may activate the driveline-protection system.
Risk: Unintended activation of the driveline-protection system will cause unintended braking on the wheel on the opposite side of the failed sensor, causing the vehicle to pull to one side unexpectedly, increasing the risk of a crash.
Fix: GM will notify owners, and dealers will reprogram the EBCM, free of charge. The recall began December 11, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438 or GMC customer service at 1-800-462-8782. GM's number for this recall is N192261050.
Service Brakes, Hydraulic: Power Assist: Vacuum General Motors LLC (GM) is recalling certain 2015-2017 Cadillac Escalade, 2014-2018 Chevrolet Silverado, GMC Sierra, 2015-2018 Chevrolet Suburban, Tahoe, GMC Yukon vehicles. The amount of vacuum created by the vacuum pump may decrease over time.
Risk: As the vacuum level drops, the brake assist decreases, increasing braking effort, extending the distance required to stop the vehicle, thereby increasing the risk of a crash.
Fix: GM will notify owners, and dealers will reprogram the Electronic Brake Control Module, free of charge. The recall began October 8, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-458-8006 or GMC customer service at 1-800-462-8782. GM's number for this recall is N192268490.
Equipment General Motors LLC (GM) is recalling certain 2009-2014 Chevrolet Silverado HD and GMC Sierra HD, 2009 GMC Topkick 5000, 6000, 7000 and 8000 Series and Isuzu F Series, and 2009-2018 Chevrolet Express, and GMC Savana vehicles, equipped with certain Plastic-Handle Fire Extinguishers or Push Button 'Pindicator' Fire Extinguishers. These extinguishers may become clogged, preventing the extinguisher from discharging as expected or requiring excessive force to activate the extinguisher. Additionally, in certain models, the nozzle may detach from the valve assembly with enough force that it could cause injury and also render the product inoperable. For a full list of the affected fire extinguisher models visit: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17E062-5427.pdf
Risk: In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury.
Fix: GM will notify owners, instructing them to contact Kidde to get a replacement fire extinguisher, free of charge. The recall began June 11, 2018. Owners may contact Chevrolet customer service at 1-800-222-1020, GMC customer service at 1-800-462-8782, and Isuzu customer service at 1-866-441-9638. GM's number for this recall is 18146.
Fuel System, Gasoline: Storage: Auxillary Tank General Motors LLC (GM) is recalling certain 2011-2015 Chevrolet Silverado 3500 and GMC Sierra 3500 trucks equipped with dual fuel tanks. The low fuel level sensor for the front tank may stick causing the rear tank to overfill the front tank.
Risk: If the front tank overfills, the excess pressure may cause the front tank to expand and contact the driveshaft, possibly resulting in a hole in the tank. The hole will leak fuel, which in the presence of an ignition source, can increase the risk of a fire.
Fix: GM has notified owners, and dealers will replace the rear tank fuel pump or update the fuel-level sensor software, as well as inspect the front tank, replacing it as necessary, free of charge. The recall began December 11, 2017. Owners may contact GM customer service for Chevrolet 1-800-222-1020 or for GMC customer service at 1-800-462-8782. GM's number for this recall is 17399.
Air Bags: Frontal General Motors LLC (GM) is recalling certain model year 2014-2016 Buick Lacrosse and Chevrolet Spark EV, Caprice PPV and SS vehicles, 2014-2017 Buick Encore and Chevrolet Corvette, Silverado 1500 and GMC Sierra 1500 vehicles, 2015-2016 Cadillac Escalade and Escalade ESV, Chevrolet Tahoe, Trax, Suburban and Silverado 2500 and 3500 and GMC Yukon and Yukon XL vehicles, and 2015-2017 GMC Sierra HD 2500 and 3500 vehicles. While being previously remedied for recall 16V-651, the affected vehicles may not have received the complete software update necessary to remedy the recall condition. Without the update, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.
Risk: A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the driver and front passenger.
Fix: GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous air bag deployment will have the SDM replaced. These repairs will be performed free of charge. The recall began on August 4, 2017. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 17287.
Steering: Electric Power Assist System General Motors LLC (GM) is recalling certain 2014 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles. The vehicles may have a temporary loss of electric power steering (EPS) assist, especially during low-speed turning maneuvers.
Risk: If EPS assist is lost and then returns, the driver might lose temporary control of the steering wheel, increasing the risk of a crash.
Fix: GM will notify owners, and dealers will update the EPS module software, free of charge. The recall began on August 10, 2017. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-432-8782. GM's number for this recall is 17276.
Air Bags: Frontal General Motors LLC (GM) is recalling certain model year 2015-2017 Chevrolet Silverado 2500 HD, 3500 HD, Tahoe, Suburban, GMC Sierra 2500 HD and 3500 HD, GMC Yukon, GMC Yukon XL, Cadillac Escalade and Cadillac Escalade ESV vehicles and 2014-2017 Chevrolet Corvette, Silverado 1500, Trax, Caprice Police Pursuit Vehicle, GMC Sierra 1500, Buick Encore, and 2014-2016 Buick Lacrosse, Chevrolet Spark EV and SS vehicles. In the affected vehicles, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.
Risk: A failure of the front air bags or seat belt pretensioners to deploy in the event of a crash necessitating deployment increases the risk of injury to the driver and front passenger.
Fix: GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had a previous air bag deployment will have the SDM replaced. These repairs will be performed free of charge. The recall began on October 13, 2016. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 16007.
Seat Belts General Motors LLC (GM) is recalling certain model year 2014-2015 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks manufactured January 29, 2013, to January 21, 2015. While entering the vehicle, the seat belt tensioner cable may be positioned such that the driver slides over it. This movement may result in the fatigue and separation of the cable.
Risk: If the tensioner cable separates, the driver may not be properly restrained in the event of a crash, increasing their risk of injury.
Fix: GM will notify owners, and dealers will modify the vehicles to prevent the tensioner from being damaged. Any tensioner that has already been damaged will be replaced, free of charge. The recall began on August 11, 2016. 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 15822.
Engine And Engine Cooling: Exhaust System General Motors is recalling certain 2014 model year Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles, and 2015 model year Cadillac Escalade and Escalade ESV; Chevrolet Silverado HD; and GMC Sierra HD, Yukon, and Yukon XL, equipped with a 4.3L engine or 5.3L engine.
Risk: The overheated exhaust components may melt nearby plastic parts and may result in an engine fire.
Fix: General Motors will notify owners, and dealers will reprogram the engine control module, free of charge. The recall began on January 16, 2014. Owners may contact Chevrolet at 1-800-222-1020 and GMC at 1-800-462-8782. General Motors' number for this recall is 14008.
Is the 2014 GMC Sierra recalled in the UK or Europe?
Recalls issued by the UK's DVSA and through the EU's Safety Gate system that cover this model and build period. European models can differ from U.S. ones, and "years estimated" means the recall gave no build dates, so confirm your own car with your registration or VIN.
EU Safety GateThe propellant used in the passenger-side frontal airbag inflator may experience a material alteration over time due to degradation…The propellant used in the passenger-side frontal airbag inflator may experience a material alteration over time due to degradation occurring after prolonged exposure to high absolute humidity, high temperatures and high-temperature cycling. In the event of an airbag being deployed, the excessive internal pressure may cause the inflator body to rupture and metal fragments may pass through the cushion material causing injury to the occupants.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
What do 2014 GMC Sierra owners report?
12 of the 900 complaints, the most recent for the most-reported components, as the owners wrote them. NHTSA removes names and VINs; long reports are trimmed. CarHooq has not verified individual claims.
While stopped at at a light it turned green and I hit the gas and wouldn't move until I turned it off then back on again..
The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving at various speeds on several occasions, the vehicle lost power steering assist. While driving 55 MPH, the failure recurred, nearly causing a semi-truck to crash into the vehicle and causing the vehicle to veer off the ramp. The contact's dog jumped out of the vehicle into the bushes and sustained a minor injury. The Brake Assist, ABS, Stabili-trak, and power steering assist warning lights illuminated, and the message "Electronic Steering Failure" was displayed after the failure. The contact turned off and restarted…
At low speeds, and not 100% of the time, the power steering will go out while I'm turning. It just does it on its own and will correct itself in a few seconds, usually when I'm done with the turn. It's at very low speeds, like parking in a parking lot or turning around in front of my house. So far no issues turning at normal speeds in traffic. Very scary at the low speeds especially since my wife and my young daughter might drive it in a year when she gets her license. I can kind of still turn it, but I know they can't and a new driver will more than likely panic.
The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the vehicle jerked and pulled to the right. No warning lights were illuminated. In addition, the contact stated that while driving over a bump in the road, the vehicle lost automotive power and shut off. The contact restarted the vehicle. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 230,000.
Truck shut off and would not turn back on. Negative battery cable so hot it burned skin off. Would not start, tried to start clicking sound, radio blipped for a moment.
The vacuum pump has been recalled on same year, make and model vehicle, yet my particular VIN is falling to the wayside. IT HAS A VACUUM PUMP issue, causing the brakes to malfunction at slower rates of speed. A "computer programming recall" was applied to my VIN however it is the ACTUAL Vacuum pump that is the problem. This should have been covered in all year, make and models. BRAKES ARE IMPORTANT! Reprogramming did not solve the vacuum pump issue that is causing the brakes to fail! This is absolute negligence on behalf of General Motors.
6.2L Engine has well documneted problem with the valvetrane, I have had to fix it 2 times in 3 months. I have pictures and documents from servicing dealerships. Since my ownership, it has always been dealer-serviced. Unexpected catastrophic engine failure, which happened on a major interstate. GM service technicians know there is a valvetrane issue. This instance, the warning light came on under and overpass, and the truck coasted to a stop just past the end of the on-ramp. A GM (Chevrolet dealership currently has it) and a GMC dealership has serviced it since my ownership.
The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving approximately 45 MPH, the vehicle drove over a slight bump in the road. The contact stated that the vehicle bounced, and then there was an abnormal banging sound coming from the rear of the vehicle. The contact recently had work completed on the exhaust system. The contact took the vehicle back to the independent mechanic who had performed the exhaust repair. The mechanic raised the vehicle on the lift and became aware that the rear passenger’s and driver's side cross members, supports for the shock absorbers, and…
The contact owns a 2014 GMC Sierra 1500. The contact stated that the headlights were dim, reducing the contact's ability to see the roadway while driving. The dealer was notified of the failure and provided an estimate for the headlights' replacement. Additionally, the contact stated that the vehicle was experiencing excessive oil consumption, and there was smoke coming out of the exhaust pipes intermittently. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 370,000.
The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed; however, the vehicle failed to stop as intended. No warning lights were illuminated. The contact stated that the brake pedal was depressed to the floorboard. The failure also persisted while driving downhill. The vehicle was taken to an independent mechanic. The contact was provided information for NHTSA Campaign Number: 19V645000 (SERVICE BRAKES, HYDRAULIC). The vehicle was taken to the dealer; however, the vehicle was not diagnosed or repaired. The contact…
The contact owns a 2014 GMC Sierra 1500. The contact stated that while her husband was driving at various speeds, the front headlights failed to function as intended. The contact stated that the headlights were dim and foggy. The failure limited the driver's visibility, preventing the driver from safely operating the vehicle. There were no warning lights illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure recurred, and the contact was no longer driving the vehicle at night due to the safety concern. The failure mileage was…
The contact owns a 2014 GMC Sierra 1500. The contact stated while driving at an undisclosed speed, the vehicle lost power steering functionality, with the stabili-trak warning light illuminated. In addition, the contact stated that the vehicle had since lost steering functionality. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximate 207,900.
2014 GMC Sierra: questions owners ask
Is the 2014 GMC Sierra reliable?
NHTSA data alone cannot rate reliability, but it shows what owners reported. Owners filed 900 complaints with NHTSA about the 2014 GMC Sierra; the most common categories were exterior lighting (214, 23.8%), steering (170, 18.9%), service brakes (151, 16.8%). There are 11 safety recalls. 33 complaints mention a crash, 10 mention a fire, 26 injuries were reported.
What are the most common problems with the 2014 GMC Sierra?
Across 900 owner complaints filed with NHTSA, the categories mentioned most often are exterior lighting (23.8% of complaints), steering (18.9% of complaints), service brakes (16.8% of complaints), electrical system (16% of complaints), power train (9.3% of complaints). One complaint can name several components.
Does the 2014 GMC Sierra have any recalls?
Yes. NHTSA lists 11 recalls for the 2014 GMC Sierra; the most recent (campaign 21V245000, 2021-04-08) concerns Seat Belts: Front. Recall repairs are free at a franchised dealer; check your VIN at nhtsa.gov/recalls.
Why do the headlights or taillights fail on my 2014 GMC Sierra?
102 of the 900 owner complaints NHTSA has on file for the 2014 GMC Sierra (11.3%) describe headlights, taillights or brake lights failing or condensation in the lamps. One owner wrote: "The headlights are dangerously dim, can't drive the vehicle comfortably at night. There seems to be no solution for fixing them. A TSB has been issued concerning this, but does little to address fixing the problem." (NHTSA complaint 11583283, April 2024). If it happens to your car, check your VIN for open recalls at nhtsa.gov/recalls and report the problem to NHTSA; complaints are what trigger investigations.
Why does my 2014 GMC Sierra stall, lose power or shut off while driving?
68 of the 900 owner complaints NHTSA has on file for the 2014 GMC Sierra (7.6%) describe the engine stalling, losing power or shutting off while driving. One owner wrote: "Engine failed December 2024 at 140,274 miles. 2 cylinders failed due to lifter failure and had a total loss of power. Engine was replaced by a local shop." (NHTSA complaint 11696738, October 2025). If it happens to your car, check your VIN for open recalls at nhtsa.gov/recalls and report the problem to NHTSA; complaints are what trigger investigations.
Why is the air conditioning not blowing cold in my 2014 GMC Sierra?
45 of the 900 owner complaints NHTSA has on file for the 2014 GMC Sierra (5%) describe the air conditioning not cooling or failing. One owner wrote: "AC condenser has a leak I believe is to a bad welding on one off de lines this happen on June 29 on my 2014 gmc sierra 1500 whit only 55000 miles on it I been reading a lot complains only I wonder if this is going to come to a safety recall" (NHTSA complaint 11427108, July 2021). If it happens to your car, check your VIN for open recalls at nhtsa.gov/recalls and report the problem to NHTSA; complaints are what trigger investigations.
Why does the power steering fail or feel heavy on my 2014 GMC Sierra?
38 of the 900 owner complaints NHTSA has on file for the 2014 GMC Sierra (4.2%) describe power steering failing, locking up or turning heavy. A related recall exists: campaign 17V414000 (steering: electric power assist system). The fix: GM will notify owners, and dealers will update the EPS module software, free of charge. One owner wrote: "I am experiencing episodic loss of power steering assist without warning. This lasts for several seconds then power steering is restored. "StabiliTrak” message may be displayed during the event." (NHTSA complaint 11619635, October 2024). Recall repairs are free at a dealer; check your VIN at nhtsa.gov/recalls.
Does the 2014 GMC Sierra have rust or paint problems?
30 of the 900 owner complaints NHTSA has on file for the 2014 GMC Sierra (3.3%) describe rust, corrosion or peeling paint. One owner wrote: "We have a 2014 GMC sierra 4.3 V6 6 speed automatic.. with only 100k miles and the frame is rusted and cracked rear shocks mounts are rusted and broke and the leaf spring mounts are rusted and they broke.. this should be a recall issue.." (NHTSA complaint 11649197, March 2025). If it happens to your car, check your VIN for open recalls at nhtsa.gov/recalls and report the problem to NHTSA; complaints are what trigger investigations.
Why do the brakes feel soft, fail or make noise on my 2014 GMC Sierra?
28 of the 900 owner complaints NHTSA has on file for the 2014 GMC Sierra (3.1%) describe brakes feeling soft, failing, grinding or squealing. 2 related recalls exist: campaign 19V761000 (service brakes, hydraulic: antilock/traction control/electronic limited slip: wheel speed sensor/tone ring). The fix: GM will notify owners, and dealers will reprogram the EBCM, free of charge. One owner wrote: "Recall on brakes says it's fixed. My brakes fail alot suspension chunks all the time and steering feels like tire is falling off" (NHTSA complaint 11521790, May 2023). Recall repairs are free at a dealer; check your VIN at nhtsa.gov/recalls.
Check your own Sierra
Counts are a starting point, not a verdict: popular models collect more complaints because more of them are on the road, and NHTSA does not verify individual reports. To see whether a recall is still open on your car, enter your VIN at nhtsa.gov/recalls (U.S.) or your registration at check-vehicle-recalls.service.gov.uk (UK). Had a safety problem? Report it to NHTSA; complaints are what trigger investigations and recalls.
Data: NHTSA Office of Defects Investigation recall and complaint databases (public domain), EU Safety Gate alerts (© European Union), retrieved October 25, 2026. Model year 2014 only; combines NHTSA's entries for SIERRA 1500, SIERRA 2500 and SIERRA 3500.