Model year report

2015 GMC Sierra 1500: what breaks, and at what mileage

What breaks on the 2015 GMC Sierra 1500

On the 2015 GMC Sierra 1500, the failure owners report most often is other brake problem, and the reports cluster around 57,000 miles. The earliest to appear is headlight failure or clouding, reported by a median of 1,000 miles. Overall it scores 71 out of 100, high risk for a 2015.

High risk for a 2015 — 153rd riskiest of the 273 2015 vehicles we can rate. 928 owner reports; fleet size estimated from this year's own recall paperwork.

What owners report breaking

Owners have reported 63 named failure modes on the 2015 GMC Sierra 1500, and the three most-reported carry 30% of everything filed, which is an unusually even spread for one model year.

Other brake problem leads with 158 reports, about 1.1 per 1,000 vehicles and with the middle half of reports between 44k to 75,000 miles.

Other steering problem follows with 62 reports, usually reported between 33k to 75,000 miles.

Other electrical problem follows with 61 reports, usually reported between 40k to 67,500 miles. 3 of those reports mention a fire.

By system, the reports fall mostly into brakes (221), lighting (94) and transmission (87).

When these failures get reported

587 of the reports on the 2015 GMC Sierra 1500 came with an odometer reading, and half of those were filed before 46,000 miles.

Cumulatively, 54% by 50,000 miles, 92% by 100,000 miles and 99% by 150,000 miles of the dated reports had been filed, with 2 filed above the top of the chart.

The busiest stretch is between 0 and 10,000 miles, which alone holds 19% of the dated reports.

37% of the dated reports were filed below 36,000 miles, which is early enough that a fair number of these cars were still under a factory warranty when the owner complained.

In the order they tend to show up: headlight failure or clouding around 1k, other lighting problem around 1k, other suspension problem around 8k and other wheel or tire problem around 15k.

Median

Other brake problem

57k
Other steering problem

63k
Other electrical problem

48k
Other powertrain problem

32k
Other lighting problem

1k
Other engine problem

49k
Air conditioning failure

56k
Headlight failure or clouding

1k
Loss of braking

60k
Master cylinder or brake booster failure

51k
Other body or interior problem

42k
Radiator or coolant leak

78k

Tick median reported mileage Solid middle half of reports Faint 10th to 90th percentile Colour how bad the failure is when it happens

Showing the 12 most-reported failure modes of 63. The full list is in the table below.

How reports accumulate

Share of reports filed by each mileage

half by 46k

Every report with an odometer reading, cumulative, from 0 to 200,000 miles. A further 2 reports came in above that, which is why the line stops short of the top. A curve that climbs early is a car with early problems, whatever its total.

Line share of reports filed by that mileage
Dashed the median reported mileage

How bad it is when it goes

Across the named modes, 27 mention a crash, 14 a fire and 5 an injury. Those are the words owners used in their own complaints, and NHTSA does not verify them, but they are the closest thing in this data to a measure of what a failure actually did.

The average severity weight across every report on this year is 3.86, where a stalled engine or a failed airbag weighs many times more than a rattling trim panel, and a figure this high means the reports are dominated by failures with safety consequences rather than annoyances. The weighting is set out in full on the methodology page.

What the top failures cost to put right, as editorial estimates for an independent US shop rather than figures from NHTSA: other brake problem at $300–$1,800, other steering problem at $350–$2,400, other electrical problem at $250–$2,000 and other powertrain problem at $400–$4,500. Dealer labour, a seized bolt or a part that is no longer made can push any of these past the top of its range.

21% of the reports on this year sit in the engine, transmission, drivetrain or cooling systems — the four where a repair bill is usually four figures.

Every reported failure mode

Mileage figures are percentiles of owner-reported readings. Click a column to sort.
Failure mode	System	Reports	With reading	25th	Median	75th	Per 1,000	Typical repair	Severity
Other brake problem	brakes	158	110	44k	57k	75k	1.1	$300–$1,800	High
Other steering problem	steering	62	34	33k	63k	75k	0.4	$350–$2,400	High
Other electrical problem	electrical	61	36	40k	48k	69k	0.4	$250–$2,000	Moderate
Other powertrain problem	transmission	57	36	7k	32k	73k	0.4	$400–$4,500	High
Other lighting problem	lighting	49	35	125	1k	13k	0.3	$120–$1,200	Moderate
Other engine problem	engine	43	23	34k	49k	83k	0.3	$300–$4,000	High
Air conditioning failure	hvac	39	32	44k	56k	80k	0.3	$400–$2,800	Moderate
Headlight failure or clouding	lighting	39	27	200	1k	14k	0.3	$150–$1,800	Moderate
Loss of braking	brakes	34	28	41k	60k	70k	0.2	$400–$3,000	Critical
Master cylinder or brake booster failure	brakes	22	21	39k	51k	62k	0.1	$450–$2,200	Critical
Other body or interior problem	body	22	15	19k	42k	64k	0.1	$200–$2,000	Moderate
Radiator or coolant leak	cooling	20	9	48k	78k	107k	0.1	$350–$1,900	High
Other visibility problem	glass	19	13	2k	34k	50k	0.1	$150–$1,400	Moderate
Complete transmission failure	transmission	15	8	1k	45k	110k	0.1	$2,800–$8,000	Critical
Other driver assistance problem	adas	14	9	32k	37k	60k	0.1	$250–$1,800	High
Lifter, cam or cylinder-deactivation failure	engine	12	1	—	90k	—	0.1	$1,800–$7,000	High
Other suspension problem	suspension	12	10	3k	8k	15k	0.1	$350–$2,000	Moderate
Infotainment screen failure	infotainment	11	7	—	5k	—	0.1	$400–$2,600	Low
Seat belt or retractor failure	airbag	11	6	—	26k	—	0.1	$200–$900	High
Other wheel or tire problem	wheels	11	11	9k	15k	28k	0.1	$200–$1,500	High
Stalling while driving	engine	10	6	—	63k	—	0.1	$300–$2,500	Critical
Torque converter failure	transmission	9	6	—	103k	—	0.1	$1,100–$3,200	High
Airbag inflator rupture	airbag	9	7	—	32k	—	0.1	$0–$0	Critical
Wiring harness or short circuit	electrical	8	5	—	60k	—	0.1	$400–$3,500	High
Control module (ECM/PCM/BCM) failure	electrical	8	7	—	58k	—	0.1	$700–$3,000	High
Instrument cluster or gauge failure	infotainment	8	2	—	60k	—	0.1	$350–$1,400	Moderate
Misfire or rough idle	engine	7	2	—	5k	—	0.0	$250–$1,600	Moderate
Loss of power steering	steering	7	4	—	55k	—	0.0	$600–$2,800	Critical
Steering rack, gear or tie rod failure	steering	7	6	—	39k	—	0.0	$700–$2,600	High
Tail light, brake light or signal failure	lighting	6	5	—	90k	—	0.0	$100–$900	Moderate
Fuel pump failure	fuel	5	4	—	20	—	0.0	$600–$2,600	High
Other fuel system problem	fuel	5	4	—	19k	—	0.0	$300–$2,200	High
No-start or intermittent start failure	engine	4	3	—	35k	—	0.0	$200–$1,800	Moderate
Other speed control problem	adas	4	1	—	11k	—	0.0	$250–$2,000	Critical
CV axle or driveshaft failure	drivetrain	3	2	—	31k	—	0.0	$450–$2,200	High
Differential or transfer case failure	drivetrain	3	1	—	15k	—	0.0	$900–$4,200	High
ABS module or sensor failure	brakes	3	2	—	46k	—	0.0	$500–$2,400	High
Parking brake failure	brakes	3	3	—	39k	—	0.0	$250–$1,300	Moderate
Paint peeling or clear coat failure	body	3	2	—	53k	—	0.0	$600–$6,000	Low
Rust or structural corrosion	body	3	0	—	—	—	0.0	$500–$6,000	High
Complete engine failure or seizure	engine	2	0	—	—	—	0.0	$4,500–$12,000	Critical
Overheating	cooling	2	2	—	41k	—	0.0	$400–$3,500	High
Transmission slipping	transmission	2	1	—	9k	—	0.0	$1,200–$5,500	High
Harsh or jerky shifting	transmission	2	1	—	23	—	0.0	$600–$4,000	Moderate
Fuel tank, filler or EVAP failure	fuel	2	0	—	—	—	0.0	$250–$1,800	Moderate
Alternator or charging system failure	electrical	2	1	—	80k	—	0.0	$450–$1,600	High
Airbag warning light or occupant sensor fault	airbag	2	0	—	—	—	0.0	$300–$1,600	High
Steering column or shaft failure	steering	2	0	—	—	—	0.0	$600–$2,500	Critical
Liftgate, tailgate or trunk failure	body	2	1	—	20k	—	0.0	$250–$1,500	Moderate
Exhaust leak or fumes in the cabin	emissions	2	0	—	—	—	0.0	$250–$2,000	High
Wiper or washer failure	glass	2	2	—	6k	—	0.0	$120–$800	Moderate
Turbocharger or supercharger failure	engine	1	1	—	41k	—	0.0	$1,500–$4,500	High
Transmission will not engage a gear	transmission	1	0	—	—	—	0.0	$1,500–$6,000	Critical
Shifter, linkage or stuck-in-park failure	transmission	1	1	—	45k	—	0.0	$250–$1,400	High
Fuel gauge or level sensor failure	fuel	1	1	—	16k	—	0.0	$300–$1,200	Moderate
Backup camera failure	infotainment	1	0	—	—	—	0.0	$250–$1,200	Moderate
Audio or connectivity failure	infotainment	1	1	—	74k	—	0.0	$150–$900	Low
Premature brake pad or rotor wear	brakes	1	1	—	47k	—	0.0	$300–$1,400	Moderate
Cruise control failure	adas	1	0	—	—	—	0.0	$200–$1,400	High
Parking sensor failure	adas	1	0	—	—	—	0.0	$180–$900	Low
Air suspension failure	suspension	1	1	—	69k	—	0.0	$900–$4,500	High
Tire blowout or tread separation	wheels	1	0	—	—	—	0.0	$200–$1,500	Critical
Sunroof failure or glass breakage	body	1	0	—	—	—	0.0	$700–$4,500	High
Unclassified problem	other	68	30	20k	53k	68k	0.5	—	Moderate

Rate per 1,000 uses a fleet-size estimate derived from recall paperwork for this exact model year. It is a lower bound. Repair costs are typical independent-shop ranges for the failure, not figures from these reports.

How often, against how many were built

Scaled by an estimate of how many of these cars exist, the 2015 GMC Sierra 1500 draws about 6.2 per 1,000 vehicles, which puts it in the 86th percentile of complaint rates among 2015 vehicles we can rate.

That denominator is the weakest number on the page and it is fair to say so plainly. Rate per 1,000 uses a fleet-size estimate derived from recall paperwork for this exact model year. It is a lower bound.

The working figure is 149,205 vehicles. If the true number is twice that, every rate on this page is half what it says; the ranking against other 2015 vehicles, which is what the risk score uses, is far more robust than the rate itself.

What owners wrote

Verbatim from NHTSA complaint narratives, trimmed for length. The odometer reading is the one the owner gave.

Recalls on the 2015 model year

NHTSA has issued 9 recall campaigns covering the 2015 GMC Sierra 1500, affecting an estimated 429,366 vehicles. A recall is a different kind of evidence from a complaint: it is the regulator and the manufacturer agreeing that something has to be fixed, and the fix is free for as long as the car exists.

The campaigns cover air bags:side/window:curtain:inflator, seat belts:front and electronic stability control (esc). Whether the work was actually done on the car in front of you is a question only the VIN can answer, and the manufacturer or NHTSA will answer it free.

One caution about reading these together: a recall usually raises the complaint count for the same part, because owners who read about it go and file. The mileages stay informative; the counts get noisy.

21V504000

AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR

410,019 vehicles 2021-07-01

Defect: General Motors LLC (GM) is recalling certain 2015-2016 GMC Sierra 1500, 2500, 3500, and Chevrolet Silverado 1500, 2500, and 3500 trucks. The roof-rail air bag (RRAB) inflator end cap may detach from the inflator, or the inflator sidewall may rupture.
Consequence: A separated inflator end cap or inflator rupture can allow compressed gas to escape, resulting in the end cap or other components being propelled into the vehicle, increasing the risk of injury or crash.
Remedy: Dealers will replace the left and right side RRAB modules, free of charge. Interim owner notification letters informing owners of the safety risk were mailed on August 18, 2021. Owners will receive a second notice when the remedy is available. Phase I owner notification letters were mailed on May 5, 2022. Phase II owner notification letters are expected to be mailed on May 31, 2022. Owners may contact GMC customer service at 1-888-988-7267 or Chevrolet customer service at 1-800-222-1020. This recall supersedes NHTSA recall number 20V-736. GM's number for this recall is…

21V245000

SEAT BELTS:FRONT

2,568 vehicles 2021-04-08

Defect: 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.
Consequence: A broken pretensioner cable reduces the effectiveness of the driver's seat belt, increasing the risk of injury.
Remedy: 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.

20V736000

AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR

9,279 vehicles 2020-11-25

Defect: General Motors LLC (GM) is recalling certain 2015-2016 GMC Sierra 1500 and Chevrolet Silverado 1500 and 2015 GMC Sierra 2500 and 3500, and Chevrolet Silverado 2500 and 3500 trucks. The roof-rail air bag (RRAB) inflator end cap may detach from the inflator.
Consequence: If the end cap separates from the inflator, the compressed gas will escape and the end cap can be propelled into the vehicle, increasing the risk of injury or a crash.
Remedy: GM will notify owners, and dealers will replace the RRAB modules on the left and/or right side, free of charge. Interim owner notification letters were mailed on December 22, 2020. Owners may contact GMC customer service at 1-888-988-7267 or Chevrolet customer service at 1-800-222-1020. Note: GM filed a new recall, number 21V-504 that supersedes this recall. All vehicles previously recalled under 20V-736 will now be repaired under the new recall number 21V-504. GM's numbers for this recall are N202309680, N202309681, and N202309682.

19V761000

ELECTRONIC STABILITY CONTROL (ESC)

652,967 vehicles 2019-10-24

Defect: 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.
Consequence: 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.
Remedy: 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.

19V645000

SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM

3,456,719 vehicles 2019-09-06

Defect: 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.
Consequence: 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.
Remedy: 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.

18V586000

STEERING:ELECTRIC POWER ASSIST SYSTEM

1,015,918 vehicles 2018-09-07

Defect: General Motors LLC (GM) is recalling certain 2015 Chevrolet Silverado 1500, Tahoe and Suburban, GMC Sierra 1500 and Yukon, and Cadillac Escalade vehicles. Electric power steering (EPS) assist may be lost momentarily, followed by a sudden return of EPS assist.
Consequence: If EPS assist is lost and then suddenly returns, the driver may have difficulty steering the vehicle, especially at low speeds, increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will update the EPS module software, free of charge. The recall began October 12, 2018. Owners may contact Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020 and GMC customer service at 1-800-462-8782. GM's number for this recall is 18289.

17V437000

AIR BAGS:FRONTAL

40,683 vehicles 2017-07-10

Defect: 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…
Consequence: 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.
Remedy: 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.

16V651000

AIR BAGS:FRONTAL

3,640,162 vehicles 2016-09-08

Defect: 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…
Consequence: 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.
Remedy: 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.

16V209000

SEAT BELTS

895,232 vehicles 2016-04-12

Defect: 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.
Consequence: If the tensioner cable separates, the driver may not be properly restrained in the event of a crash, increasing their risk of injury.
Remedy: 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.

Recall work is free at a franchised dealer regardless of the car's age. Check the VIN at nhtsa.gov/recalls before assuming it was done.

How it ranks in the 2015 field

The score at the top of the page, placed among its peers. The zones are the same thresholds the scorer applies, read out of the scorer itself, so the picture and the band word cannot disagree.

Risk score against the rest of the 2015 field

Scores are ranked within the model year, never across years, because an older car has had longer to accumulate reports.

Left fewer and less serious reports
Right more, or worse
Marker this vehicle

Where 2015 sits in the model line

High risk for a 2015 — 153rd riskiest of the 273 2015 vehicles we can rate. Every score on this site is a rank inside its own model year, which is what makes a 2004 and a 2019 comparable at all.

Across the 30 model years of this car that carry enough reports to score, 1997 comes out best at 60 and 2019 worst at 81, with 2015 itself at 71.

If the model year is negotiable, 1997, 1999, 2012, 2013, 2010, 1998 and 2001 score lower than 2015 by a margin worth acting on. Same body, same engines, different luck — usually a supplier change or a mid-cycle fix, which the complaint data can show but never explain.

Within the 2014–2020 generation specifically, 2014 is the strongest year at 68 and 2019 the weakest at 81.

Scores compare each year against other cars of the same model year, so a low number on an older car is a real result and not an artefact of age.

Risk score by model year, out of 100

Shorter is better. Years with too few reports to score are shown without a bar rather than as a zero, because no data is not good news.

Within the 2014-2020 generation, 2014 GMC Sierra 1500 scores best at 68 and 2019 GMC Sierra 1500 worst at 81.

What the numbers say to check

The mileages below are where the first quarter of reports for each mode had already been filed, which makes them the point at which a fault is worth looking for rather than the point at which it happens: other lighting problem from about 125, headlight failure or clouding from about 200, complete transmission failure from about 1k and other visibility problem from about 2k.

On a 2015 GMC Sierra 1500 with more miles than that on it, the useful question to put to a seller or a mechanic is whether other lighting problem has been dealt with, and if so with what parts and at whose expense. A car that has already had the repair is in a different position from one that has not.

Treat it as where to point the inspection, not as a prediction. A well-maintained example can sail past every mileage on this page, and a neglected one can fail well before the first of them.

Where these figures stop being useful

928 owner reports; fleet size estimated from this year's own recall paperwork. Every count on this page is therefore a floor: it is the number of owners who went to the trouble of filing with a federal agency, which is a small and self-selected fraction of the owners who had the fault.

Of those 928 reports, 587 carried an odometer reading, so the mileages here describe 63% of the sample rather than all of it. Owners also round: readings pile up on multiples of ten thousand, which is why this site publishes "about 90,000 miles" and not "91,438".

The failure modes are assigned by software reading the owner's own words, which is accurate in bulk and wrong in individual cases. A mode with a handful of reports may contain a misfiled one.

And nothing here predicts what one car will do. These are other people's complaints, filed years apart, on cars maintained by strangers. Read the page as a map of where this model year has previously gone wrong, then have the specific car in front of you inspected.

Questions this page answers

What are the most common problems with the 2015 GMC Sierra 1500?

The most-reported failures are other brake problem (158 reports, median 57,000 miles), other steering problem (62 reports, median 62,500 miles) and other electrical problem (61 reports, median 47,500 miles). Counts come from owner complaints filed with NHTSA, which are voluntary, so they show what owners bothered to report rather than every fault that occurred.

At what mileage do 2015 GMC Sierra 1500 problems start?

Headlight failure or clouding is the earliest failure mode to show up, with a median reported mileage of 1,000 miles and a quarter of reports before 200 miles. Across all failure modes on this year, the median report sits at 46,000 miles.

Is the 2015 GMC Sierra 1500 reliable?

It scores 71 out of 100 on our risk index, which is high — 153rd riskiest of the 273 2015 vehicles we can rate. The score is a comparison against other 2015 vehicles, not a prediction about any individual car, and it is built from complaint rates, severity and how early failures appear.

Which year of the GMC Sierra 1500 is best?

Within the 2014–2020 generation, 2014 scores best at 68 out of 100 and 2019 worst at 81. Same body, same engines, different luck.

Where this comes from. Every figure above is computed from NHTSA owner complaints and recall records for this exact make, model and year. Complaints are voluntary and self-selected, so treat counts as a floor. The methodology page writes out each formula, and the same numbers are available as JSON.

What breaks at my mileage Compare with another car

Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt 30 August 2026 Published by AtWhatMileage How every figure is computed