2018 Chevrolet Tahoe Service and Repair Manual

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Factory-Grade Data

2018 Chevrolet Tahoe 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

  • PPV Sport Utility 4-Door
  • Commercial Sport Utility 4-Door
  • Police Sport Utility 4-Door
  • SSV Sport Utility 4-Door
  • Premier Sport Utility 4-Door
  • LS Sport Utility 4-Door
  • Midnight Edition Sport Utility 4-Door
  • LT Sport Utility 4-Door

Engines covered

  • 5.3L 5328CC 325Cu. In. V8 FLEX OHV Naturally Aspirated
  • --
  • 6.2L 6162CC 376Cu. In. V8 FLEX OHV Naturally Aspirated
  • 5.3L 5328CC 325Cu. In. V8 GAS OHV Naturally Aspirated
  • 6.2L 6162CC 376Cu. In. V8 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

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Vehicle Safety Data

2018 Chevrolet Tahoe Recalls & Complaints

NHTSA #19V76100024/10/2019Component: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED

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

Consequence

Unintended activation of the driveline-protection system will cause unintended braking on

Remedy

GM will notify owners, and dealers will reprogram the EBCM, free of charge. The recall be

NHTSA #19V64500006/09/2019Component: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM

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

Consequence

As the vacuum level drops, the brake assist decreases, increasing braking effort, extendin

Remedy

GM will notify owners, and dealers will reprogram the Electronic Brake Control Module, fre

NHTSA #20V60300001/10/2020Component: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM

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

Consequence

A decrease in brake assist can increase the brake pedal effort and distance required to st

Remedy

GM will notify owners, and dealers will reprogram the Electronic Brake Control Module, fre

TSB #11032777

This PI provides diagnostic tips for diagnosing electric trailer brakes issues.

TSB #11032577

This Preliminary information communicates direction to find information at www.gmupfitter.com for Police and Special Service Vehicles.

TSB #11030974

This preliminary information communicates information about how to determine if a wheel and tires size change is available.

TSB #11030092

This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.

TSB #11030091

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

TSB #11028700

This preliminary information communicates an issue with aftermarket LED headlights causing IPC warning messages and MIL along with several low speed lan DTCs.

TSB #11027601

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

TSB #11026863

This Preliminary information communicates a diagnostic tip for an issue where the starter stays engaged after the engine starts. Dealers are to suspect/monitor the crankshaft position sensor.

Showing the 8 most recent of 1269 technical service bulletins on file with NHTSA.

20231101Component: UNKNOWN OR OTHERCrash reported1 injured

I had an accident in this vehicle where the airbags deployed upon impact (as they were designed). However, once airbags deployed, my vehicle was filled with smoke (from the airbag

20221023Component: SERVICE BRAKESCrash reported1 injured

While driving home, the the FAC, forward automatic crash, indicator light came on, I applied the brakes and watched to my dismay as my vehicle slowed down but would not stop. I app

20221023Component: FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKINGCrash reported1 injured

While driving home, the the FAC, forward automatic crash, indicator light came on, I applied the brakes and watched to my dismay as my vehicle slowed down but would not stop. I app

20200306Component: SERVICE BRAKESCrash reported1 fatalities

OVER THE LAST 6 MONTHS THE BRAKE PEDAL IS HARD TO PUSH AFTER THE TRUCK SITS OVER NIGHT. THE VACUUM BLEEDS OUT INDICATING A VACUUM LEAK IN THE SYSTEM. GM AND THE DEALER SAID THIS MO

Showing the 4 most serious of 124 complaints filed with NHTSA.

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