2023 GMC Sierra 1500 Service and Repair Manual
2023 GMC Sierra 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
- AT4 Crew Cab Pickup 4-Door
- Denali Ultimate Crew Cab Pickup 4-Door
- SLT Crew Cab Pickup 4-Door
- Denali Crew Cab Pickup 4-Door
- Pro Extended Cab Pickup 4-Door
- SLE Crew Cab Pickup 4-Door
- AT4X Crew Cab Pickup 4-Door
- Pro Crew Cab Pickup 4-Door
- SLE Extended Cab Pickup 4-Door
- Elevation Crew Cab Pickup 4-Door
- Elevation Extended Cab Pickup 4-Door
- Pro Standard Cab Pickup 2-Door
Engines covered
- 6.2L 6162CC 376Cu. In. V8 GAS OHV Naturally Aspirated
- 3.0L 2993CC 183Cu. In. l6 DIESEL DOHC Turbocharged
- 5.3L 5328CC 325Cu. In. V8 GAS OHV Naturally Aspirated
- 5.3L 5328CC 325Cu. In. V8 FLEX OHV Naturally Aspirated
- 2.7L 2720CC 166Cu. In. l4 GAS DOHC Turbocharged
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 2020-2023 Cadillac CT4 and CT5; 2021-2023 Buick Envision; and 2022-2023 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, Tahoe, GMC
DRLs that do not deactivate as intended may result in a glare, reducing visibility, and increasing t
The body control module software will be updated by a dealer, or through an over-the-air (OTA) updat
This Preliminary information communicates recovery procedure after return to dealer message.
This preliminary information is to inform technicians and customers that the voice command will be inoperative when trying to open applications. Engineering is investigating and this PI will be converted to a bulletin when a repair is avail
This PI shares with Technician that a DTC may occur P2002 LZ0 After OTA Update N25-251385
The document advise technicians after an engine repair involving removal of the camshaft actuators, the vehicle may set p1101 P0172 and or stalls when taken off idle. The technician is instructed to verify the intake and exhaust camshaft ac
This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.
This Preliminary information communicates recovery procedure after return to dealer message.
This Preliminary information communicates to dealers a procedure to reset the radio.
This Preliminary Information communicates direction for different audio issues with RPO UQA, UQF, UQS, or NKD
Showing the 8 most recent of 1222 technical service bulletins on file with NHTSA.
The vehicle has experienced repeated incidents of sudden reduced engine power and loss of acceleration while driving. On multiple occasions, while traveling at highway speeds, the vehicle failed to re
The vehicle has experienced repeated incidents of sudden reduced engine power and loss of acceleration while driving. On multiple occasions, while traveling at highway speeds, the vehicle failed to re
The vehicle has experienced repeated incidents of sudden reduced engine power and loss of acceleration while driving. On multiple occasions, while traveling at highway speeds, the vehicle failed to re
Vehicle's 10 speed transmission on numerous occasions has locked the wheels at high rates of speed on the highway, causing the vehicle to veer across several lanes and almost crash. Vehicle will not a
I just left the gas station from getting a beverage, I got onto the interstate and had gone roughly about 3 miles before setting super cruise a few minutes after that the interstate takes a turn to th
Showing the 5 most serious of 506 complaints filed with NHTSA.
