2015 Chevrolet Silverado 2500 HD Service and Repair Manual

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Covers all 2015 Silverado 2500 HD trims — WT Crew Cab Pickup 4-Door, LT Extended Cab Pickup 4-Door, High Country Crew Cab Pickup 4-Door +6 more ·
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2015 Chevrolet Silverado 2500 HD service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Wiring diagrams and electrical sections
  • Powertrain, brakes, steering, suspension, HVAC and more

Trims covered

  • WT Crew Cab Pickup 4-Door
  • LT Extended Cab Pickup 4-Door
  • High Country Crew Cab Pickup 4-Door
  • LT Standard Cab Pickup 2-Door
  • LT Crew Cab Pickup 4-Door
  • WT Extended Cab Pickup 4-Door
  • LTZ Extended Cab Pickup 4-Door
  • WT Standard Cab Pickup 2-Door
  • LTZ Crew Cab Pickup 4-Door

Engines covered

  • 6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
  • 6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated
  • 6.0L 5967CC 364Cu. In. V8 CNG OHV Naturally Aspirated
  • 6.0L 5967CC 364Cu. In. V8 FLEX OHV Naturally Aspirated

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams
NHTSA #18V57800030/08/2018Component: SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES

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 350

Consequence

If the brake pedal becomes loose or inoperative, the driver may be unable to stop the vehi

Remedy

GM will notify owners, and dealers will add adhesive to the nut and reinstall the nut with

NHTSA #17V43700010/07/2017Component: 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,

Consequence

A failure of the front air bags or seat belt pretensioners to deploy in the event of a cra

Remedy

GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had

NHTSA #16V65100008/09/2016Component: 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, C

Consequence

A failure of the front air bags or seat belt pretensioners to deploy in the event of a cra

Remedy

GM will notify owners, and dealers will reflash the SDM software. Vehicles that have had

NHTSA #16V06900005/02/2016Component: SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES

General Motors LLC (GM) is recalling certain model year 2015-2016 Chevrolet Silverado 1500, 2500, and 3500 heavy duty trucks manufactured October 1, 2013, to February 1, 2016, 2015

Consequence

If the brake pedal becomes loose or inoperative, the driver may be unable to stop the vehi

Remedy

GM will notify owners, and dealers will add adhesive to the brake pedal pivot nut and rein

NHTSA #21V50400001/07/2021Component: AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR

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

Consequence

A separated inflator end cap or inflator rupture can allow compressed gas to escape, resul

Remedy

Dealers will replace the left and right side RRAB modules, free of charge. Interim owner

No service bulletins No technical service bulletins on file with NHTSA for the 2015 Chevrolet Silverado 2500 HD.
20170601Component: AIR BAGSCrash reportedFire reported

TL* THE CONTACT OWNS A 2015 CHEVROLET SILVERADO 2500. WHILE THE CONTACT'S VEHICLE WAS STATIONARY, A SECOND VEHICLE TRAVELING APPROXIMATELY 40 MPH CRASHED INTO THE REAR OF THE CONTA

20170601Component: SEAT BELTSCrash reportedFire reported

TL* THE CONTACT OWNS A 2015 CHEVROLET SILVERADO 2500. WHILE THE CONTACT'S VEHICLE WAS STATIONARY, A SECOND VEHICLE TRAVELING APPROXIMATELY 40 MPH CRASHED INTO THE REAR OF THE CONTA

20190621Component: STRUCTURE:BODYCrash reported1 injured

THE VEHICLE HAD A HANDICAPPED DRIVER CONVERSION, WITH A GULL-WING DRIVER'S DOOR. THE DRIVER'S DOOR WAS ONLY HELD CLOSED WITH A MAGNET AT THE FRONT OF THE DOOR OPENING. THERE WAS N

20190621Component: LATCHES/LOCKS/LINKAGES:DOORS:LATCHCrash reported1 injured

THE VEHICLE HAD A HANDICAPPED DRIVER CONVERSION, WITH A GULL-WING DRIVER'S DOOR. THE DRIVER'S DOOR WAS ONLY HELD CLOSED WITH A MAGNET AT THE FRONT OF THE DOOR OPENING. THERE WAS N

Showing the 4 most serious of 244 complaints filed with NHTSA.

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