2018 Chevrolet Silverado 1500 Service and Repair Manual
2018 Chevrolet Silverado 1500 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
- LS Extended Cab Pickup 4-Door
- LT Standard Cab Pickup 2-Door
- Custom Crew Cab Pickup 4-Door
- LT Crew Cab Pickup 4-Door
- WT Extended Cab Pickup 4-Door
- Custom Extended Cab Pickup 4-Door
- LTZ Extended Cab Pickup 4-Door
- LTZ Crew Cab Pickup 4-Door
- SSV Crew Cab Pickup 4-Door
- LT Extended Cab Pickup 4-Door
- High Country Crew Cab Pickup 4-Door
- LS Standard Cab Pickup 2-Door
- LS Crew Cab Pickup 4-Door
- WT Standard Cab Pickup 2-Door
Engines covered
- 4.3L 262Cu. In. V6 FLEX OHV Naturally Aspirated
- 5.3L 5328CC 325Cu. In. V8 FLEX OHV Naturally Aspirated
- 5.3L 5328CC 325Cu. In. V8 GAS OHV Naturally Aspirated
- 5.3L 5328CC 325Cu. In. V8 MILD HYBRID EV-GAS (MHEV) OHV Naturally Aspirated
- 6.2L 6162CC 376Cu. In. V8 GAS OHV Naturally Aspirated
- 4.3L 262Cu. In. V6 GAS 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
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
Unintended activation of the driveline-protection system will cause unintended braking on
GM will notify owners, and dealers will reprogram the EBCM, free of charge. The recall be
General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, GMC Sierra 1500, 2019 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500, and Sierra 3500 Crew C
A detached end cap or inflator rupture can allow compressed gas to escape and project the
Dealers will replace the left and right-side RRAB modules, free of charge. Owner notificat
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 a
As the vacuum level drops, the brake assist decreases, increasing braking effort, extendin
GM will notify owners, and dealers will reprogram the Electronic Brake Control Module, fre
General Motors LLC (GM) is recalling certain 2018 Cadillac Escalade, Chevrolet Silverado 1500 and Tahoe, GMC Sierra 1500 and Yukon vehicles equipped with either a 5.3L or 6.2L V8 e
A decrease in brake assist can increase the brake pedal effort and distance required to st
GM will notify owners, and dealers will reprogram the Electronic Brake Control Module, fre
This PI provides diagnostic tips for diagnosing electric trailer brakes issues.
This Preliminary information communicates direction to find information at www.gmupfitter.com for Police and Special Service Vehicles.
This preliminary information communicates information about how to determine if a wheel and tires size change is available.
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This preliminary information communicates an issue with aftermarket LED headlights causing IPC warning messages and MIL along with several low speed lan DTCs.
This PI Communications information on an alternative product dealers can use to perform 19-NA-255: Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting due to issue with getting product from current supplier listed in the bulletin.
This PI communicates the proper part numbers for transmission connectors and internal harness to prevent confusion when ordering
Showing the 8 most recent of 944 technical service bulletins on file with NHTSA.
A REAR TIRE BLEW CAUSING LOSS OF CONTROL AND THE VEHICLE STRUCK A SHALE WALL ON THE SIDE OF A HIGHWAY AND SOMEONE DIED IN THE VEHICLE.
A REAR TIRE BLEW CAUSING LOSS OF CONTROL AND THE VEHICLE STRUCK A SHALE WALL ON THE SIDE OF A HIGHWAY AND SOMEONE DIED IN THE VEHICLE.
TL* THE CONTACT OWNS A 2018 CHEVROLET SILVERADO 1500. WHILE DRIVING APPROXIMATELY 25 MPH, THE CONTACT STRUCK A DEER WITHOUT WARNING. THE VEHICLE FILLED UP WITH SMOKE. THE AIR BAGS
Motor vehicle accident 4/21/22. Vehicle stalled hit by 18 wheeler. Several times on several occasions after that on several days vehicle stalled in interstates with multiple 18 w
Showing the 4 most serious of 727 complaints filed with NHTSA.
