2015 Gmc SIERRA 3500
Problems, Recalls & Reliability Report
Quick Summary
The 2015 Gmc SIERRA 3500 has 40 owner complaints filed with NHTSA — that's 1.6x the segment average of 25. The most common issue is electrical problems (15% of all complaints), specifically: tl*the contact owns a 2015 gmc sierra 3500. the contact stated that a snow plow was installed by a dealer however, after the installation, the instrument panel was dim and the headlights failed to illuminate. the technician uninstalled the snow plow and the vehicle resumed to function as normal. the. There are 7 recalls issued for this model year. ⚠️ 1 fire report filed.
40
Total Complaints
7
Recalls Issued
—/5
Safety Stars
1.6x
vs Segment Avg
Known Problems(top 5 of 8)
ELECTRICAL
6 complaints- • TL*THE CONTACT OWNS A 2015 GMC SIERRA 3500. THE CONTACT STATED THAT A SNOW PLOW WAS INSTALLED BY A DEALER HOWEVER, AFTER THE INSTALLATION, THE INSTRUMENT PANEL WAS DIM AND THE HEADLIGHTS FAILED TO ILLUMINATE. THE TECHNICIAN UNINSTALLED THE SNOW PLOW AND THE VEHICLE RESUMED TO FUNCTION AS NORMAL. THE
- • THIS VEHICLE HAS HAD NUMEROUS ELECTRICAL ISSUE FROM THE FIRST FEW MONTHS OF OWNERSHIP. THE TRAILER BRAKE SYSTEM FAILED AND WAS REPLACED ON OCTOBER 2014. THE VEHICLE HAS HAD MANY RECALLS THAT HAVE BEEN CORRECTED BY OWNER AND SERVICE PROVIDER. THE SECOND SUMMER OF OWNERSHIP THE VEHICLE HAD RADIATOR IS
- • THE COMMUNICATIONS QUIT WORKING, I CAN NOT USE THE HANDS FREE ON MY PHONE
“TL*THE CONTACT OWNS A 2015 GMC SIERRA 3500. THE CONTACT STATED THAT A SNOW PLOW WAS INSTALLED BY A DEALER HOWEVER, AFTER THE INSTALLATION, THE INSTRUMENT PANEL WAS DIM AND THE HEADLIGHTS FAILED TO ILLUMINATE. THE TECHNICIAN UNINSTALLED THE SNOW PLOW AND THE VEHICLE RESUMED TO FUNCTION AS NORMAL. THE”
— NHTSA complaint filing
When Problems Appear on the 2015 Gmc SIERRA 3500
Based on 29 owner complaints that included an odometer reading. Median mileage at time of complaint: 43K miles. Most complaints cluster in the 30-60K miles range.
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 (7)
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 3500
How this estimate is calculated
Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.
Maintenance & Warranty
Recommended Gmc SIERRA 3500 Service Intervals
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
These are the terms for a new Gmc. If you're buying a used 2015 SIERRA 3500, 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
Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.
🔍 Pre-Purchase Inspection Checklist
Based on 40 owner complaints for this specific year, here's what to check or ask about:
- ☐ELECTRICAL: TL*THE CONTACT OWNS A 2015 GMC SIERRA 3500. THE CONTACT STATED THAT A SNOW PLOW WAS INSTALLED BY A DEALER HOWEVER, AFTER THE INSTALLATION, THE INSTRUMENT PANEL WAS DIM AND THE HEADLIGHTS FAILED TO ILLUMINATE. THE TECHNICIAN UNINSTALLED THE SNOW PLOW AND THE VEHICLE RESUMED TO FUNCTION AS NORMAL. THE
Typically appears around 50K miles. Repair cost ~$500
- ☐LIGHTING: THE NEW TOW MIRRORS ON THIS TRUCK HAVE LED BLINKERS THAT ARE SO BRIGHT YOU CAN'T TELL IF SOMEONE IS COMING TOWARDS YOU WHEN YOU HAVE THE BLINKER ON. IT'S FLASHING RIGHT IN YOUR FACE. *TR
Typically appears around 50K miles. Repair cost ~$500
- ☐ENGINE: WHILE DRIVING WHITE SMOKE BELLOWING OUT FRONT RIGHT TIRE WHEEL WELL. UPON INSPECTION, SMOKE COMING FROM EXHAUST PIPE CLAMP NEAR TURBO. SMELL SO BAD HAVE TO DRIVE WITH WINDOW OPEN. IT APPEARS ENGINE ON FIRE FROM THE AMOUNT OF SMOKE EMITTING FROM UNDER THE HOOD. AT IDLE IT GET WORSE. IT APPEARS S
Typically appears around 50K miles. Repair cost ~$500
- ☐OTHER: MY VEHICLE IS BEING HACKED AND CONTROLLED BY OTHER DRIVERS USING CELL PHONES TO GAIN ACCESS TO MY VEHICLE WHILE DRIVING! , AND WHEN PASSING OR SITTING IN TRAFFIC! THIS HAS BEEN GOING ON FOR OVER SIX MONTHS NOW, EVERY DAY! ALL DAY LONG!! HAVE CONTACTED GMC OVER AND OVER, HAVE BEEN TO THEIR SHOPS OVER
Typically appears around 50K miles. Repair cost ~$500
- ☐RECALLS: Verify all 7 recalls have been completed — free at any Gmc dealer
- ☐General: Get a pre-purchase inspection from an independent mechanic ($100-$200)
Gmc SIERRA 3500 — Year Comparison
How does 2015 compare to other years? Fewer complaints = more reliable.
NHTSA Safety Rating
No NHTSA safety rating available
At a Glance
- Complaints
- 40
- Recalls
- 7
- Fire reports
- 1
- Crash reports
- 1
- Injury reports
- 1
- Segment avg
- 25
Check a Specific VIN
See recalls for YOUR 2015 Gmc SIERRA 3500