Is the 2015 Gmc SIERRA 2500 reliable?

The 2015 Gmc SIERRA 2500 has 100 complaints filed with NHTSA (1.9x the segment average). Our reliability verdict: below-average. Most common issue: LIGHTING problems.

What are common problems with the 2015 Gmc SIERRA 2500?

Top problems: LIGHTING (26 complaints, avg repair $500); FUEL SYSTEM (12 complaints, avg repair $500); ELECTRICAL (11 complaints, avg repair $500). Issues typically appear around 50K miles.

Are there any recalls on the 2015 Gmc SIERRA 2500?

Yes, there are 6 recall(s): SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES, AIR BAGS:FRONTAL, AIR BAGS:FRONTAL, SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES, AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR, AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR. Contact any Gmc dealer to verify if recalls have been completed on your specific vehicle.

How much does it cost to insure a 2015 Gmc SIERRA 2500?

Estimated US average full-coverage insurance for the 2015 Gmc SIERRA 2500 is approximately $1,508/year (sedan-midsize class). Actual quotes vary heavily by state, driver age, driving record, and credit — see the interactive insurance estimator on this page for state-specific pricing.

2015 Gmc SIERRA 2500

Problems, Recalls & Reliability Report

Below Average

Quick Summary

The 2015 Gmc SIERRA 2500 has 100 owner complaints filed with NHTSA — that's 1.9x the segment average of 52. The most common issue is lighting problems (26% of all complaints), specifically: vehicle low beam head lights have very poor coverage and brightness. when driving at night they barely light the road in front of the vehicle. coverage side to side is very weak. additionally when it is raining out, it is like driving with no headlights on at all. i have contacted the dealer and. There are 6 recalls issued for this model year. ⚠️ 7 fire reports filed.

7 fire reports 5 crash reports

100

Total Complaints

Recalls Issued

3/5

Safety Stars

1.9x

vs Segment Avg

Known Problems(top 5 of 8)

LIGHTING

26 complaints

26%

• VEHICLE LOW BEAM HEAD LIGHTS HAVE VERY POOR COVERAGE AND BRIGHTNESS. WHEN DRIVING AT NIGHT THEY BARELY LIGHT THE ROAD IN FRONT OF THE VEHICLE. COVERAGE SIDE TO SIDE IS VERY WEAK. ADDITIONALLY WHEN IT IS RAINING OUT, IT IS LIKE DRIVING WITH NO HEADLIGHTS ON AT ALL. I HAVE CONTACTED THE DEALER AND
• I HAVE THE TOW MIRRORS AND THEY HAVE LED LIGHTS IN THE MIRRORS FOR BLINKERS AND THEY ARE EXTREMELY BRIGHT! WHEN YOU USE YOUR TURN SIGNAL AT NIGHT THEY ARE SO BRIGHT THAT THEY MAKE IT SO YOU CAN NOT SEE ON COMING TRAFFIC VERY WELL FROM THE SIDES OF THE PICKUP WHILE AT A INTERSECTION OR WHEN YOU ARE
• WHILE DRIVING AT NIGHT ON RURAL HIGHWAYS, TOWING MY FIFTH WHEEL TRAILER, IN AZ, CA AND OR WITH NO OTHER LIGHT SOURCES NEARBY THE HEADLIGHTS WERE DIMMER THAN THOSE I AM USED TO MAKING WILD ANIMALS AND PEOPLE ALONG THE ROAD DIFFICULT TO SEE. THE INSTANCES WHEN I NOTICED THIS WERE ALL IN SEPTEMBER

Typical onset: 50K miles Est. repair: $500💥 1 crashes

“VEHICLE LOW BEAM HEAD LIGHTS HAVE VERY POOR COVERAGE AND BRIGHTNESS. WHEN DRIVING AT NIGHT THEY BARELY LIGHT THE ROAD IN FRONT OF THE VEHICLE. COVERAGE SIDE TO SIDE IS VERY WEAK. ADDITIONALLY WHEN IT IS RAINING OUT, IT IS LIKE DRIVING WITH NO HEADLIGHTS ON AT ALL. I HAVE CONTACTED THE DEALER AND”

— NHTSA complaint filing

When Problems Appear on the 2015 Gmc SIERRA 2500

Based on 64 owner complaints that included an odometer reading. Median mileage at time of complaint: 34K miles. Most complaints cluster in the 0-30K miles range.

Overall complaint distribution by mileage

0-30K

30-60K

60-100K

100-150K

150-200K

200K+

LIGHTING

In line with typicalmedian 8K mi · 17 reports

0-30K

30-60K

60-100K

100-150K

150-200K

200K+

VISIBILITY

In line with typicalmedian 56K mi · 6 reports

0-30K

30-60K

60-100K

100-150K

150-200K

200K+

OTHER

In line with typicalmedian 30K mi · 5 reports

0-30K

30-60K

60-100K

100-150K

150-200K

200K+

ELECTRICAL

High-mileage issuemedian 115K mi · 5 reports

0-30K

30-60K

60-100K

100-150K

150-200K

200K+

FUEL SYSTEM

High-mileage issuemedian 112K mi · 8 reports

0-30K

30-60K

60-100K

100-150K

150-200K

200K+

Mileage figures are self-reported by owners in NHTSA complaint filings. Peak bucket = the mileage range with the most complaints for that component; it reflects when owners noticed and reported problems, not necessarily when the fault first occurred.

Recalls (6)

SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES30/08/2018

General Motors LLC (GM) is recalling certain 2015-2016 Chevrolet Silverado 2500, 3500, 1500 Crew Cab Special Service, Tahoe Police Pursuit/Special Service, GMC Sierra 2500, and 3500 vehicles. The brake pedal pivot nut may loosen, causing the brake pedal to be loose or inoperative.

Risk: If the brake pedal becomes loose or inoperative, the driver may be unable to stop the vehicle by using the brake pedal. Additionally, a loose pedal may also interfere with the accelerator pedal. Either condition may increase the risk of a crash.

Fix: GM will notify owners, and dealers will add adhesive to the nut and reinstall the nut with increased tightness, free of charge. The recall began October 3, 2018. 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 18278. Note: The vehicles in this recall need this additional remedy despite being covered by recall 16V069 for brake pedal loosening.

Estimated Insurance Cost for 2015 Gmc SIERRA 2500

Estimate only, not a quote. Modeled from NAIC + HLDI averages for a hypothetical 35-year-old driver with clean record + full coverage. Your actual quote depends heavily on your age, driving history, credit, ZIP code, and insurer.

Your state (affects local premium average)

Full coverage / year

$1,508

Full coverage / month

$126

Liability only / year

$623

vs US avg

-10%

How this estimate is calculated

US base full-coverage premium$1674

× state (US)1.00x

× vehicle class (sedan-midsize)0.96x

× theft risk1.00x

× safety rating1.02x

× vehicle age0.92x

= Full coverage estimate$1508

Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.

Maintenance & Warranty

Recommended Gmc SIERRA 2500 Service Intervals

Oil change

8K mi / 12 mo

Tire rotation

8K mi

Brake fluid

36 months

Transmission fluid

45K mi

Engine coolant

150K mi

Spark plugs

100K mi

Cabin air filter

23K mi

Engine air filter

45K mi

Differential (AWD/4WD)

45K mi

Uses GM Oil Life System. Full-size trucks may have shorter differential and transfer case intervals if used for towing.

"Severe service" conditions (heavy towing, extreme temps, city stop-and-go) typically halve these intervals. Always consult your vehicle's owner's manual for the authoritative schedule.

Gmc New-Vehicle Warranty Coverage

Bumper-to-bumper (basic)

3 yr / 36K mi

Powertrain

5 yr / 60K mi

Hybrid/EV battery

8 yr / 100K mi

Corrosion (rust perforation)

6 yr / 100K mi

Roadside assistance

5 yr / 60K mi

These are the terms for a new Gmc. If you're buying a used 2015 SIERRA 2500, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Gmc dealer for VIN-specific remaining warranty.

Estimated Repair Costs

LIGHTING(~50K mi)

$500

FUEL SYSTEM(~50K mi)

$500

ELECTRICAL(~50K mi)

$500

TRANSMISSION(~50K mi)

$500

OTHER(~50K mi)

$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 100 owner complaints for this specific year, here's what to check or ask about:

☐
LIGHTING: VEHICLE LOW BEAM HEAD LIGHTS HAVE VERY POOR COVERAGE AND BRIGHTNESS. WHEN DRIVING AT NIGHT THEY BARELY LIGHT THE ROAD IN FRONT OF THE VEHICLE. COVERAGE SIDE TO SIDE IS VERY WEAK. ADDITIONALLY WHEN IT IS RAINING OUT, IT IS LIKE DRIVING WITH NO HEADLIGHTS ON AT ALL. I HAVE CONTACTED THE DEALER AND
Typically appears around 50K miles. Repair cost ~$500
☐
FUEL SYSTEM: THE HEADLIGHTS ON THE GMC 2500 HD ARE NOT BRIGHT ENOUGH. THE LIGHTS ARE NOT ABLE LIGHT ROADS WITHOUT STREET LIGHTS, MAKES IT VERY DANGEROUS. FUEL FILTER HAS BEEN REPLACED TWICE AND MY TRUCK ONLY HAS 12,000 MILES ON IT. WHEN I ASKED WITH THE LIFE OF A FUEL FILTER SHOULD BE I WAS TOLD BY THE GMC
Typically appears around 50K miles. Repair cost ~$500
☐
ELECTRICAL: WATER STEADILY DRIPPING THROUGH THE SUN VISOR BAR THAT MOUNTS TO INTERIOR OF ROOF ON THE DRIVERS SIDE WHEN RAINING/SNOWING TODAY. DOES NOT MATTER IF YOUR DRIVING OR SITTING STILL. ELECTRICAL WIRES RUN THROUGH THIS BAR POSING A FIRE HAZARD. GM REFUSES TO FIX EVEN THOUGH TRUCK IS UNDER WARRANTY. I HAV
Typically appears around 50K miles. Repair cost ~$500
☐
TRANSMISSION: TRANSMISSION CONTROL MODULE FAILURE; THE TRUCK AT 45 MPH DEVELOPED A COMPLETE LOSS OF ALL GAUGES(TACH, SPEED, FUEL, TEMP) AND THEN 10-15 SECONDS LATER TWO LOUD NOISES FOLLOWED BY THE VEHICLE COMING TO A RAPID DECELERATION. THIS RESULTED IN THE WHEELS LOCKING UP AND SLIDING SIDEWISE. THE TRUCK ROL
Typically appears around 50K miles. Repair cost ~$500
☐
RECALLS: Verify all 6 recalls have been completed — free at any Gmc dealer
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)