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Service bulletins for the 2018 Chevrolet Tahoe

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1273 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
PIT5245C2018-02-21. Service bulletin. ENGINE AND ENGINE COOLING; COMMUNICATION. This Preliminary Information communication provides information to the technician about vehicles that the blower motor may be noisy or vibrate when running. This concern will only occur when the temperatures is below 32 degrees Fahrenheit and if the blower motor is removed while still cold, ice may be found on the blower motor cage. This concern could be caused by water leaking or snow ingestion into the Heater-Vent-Air Conditioning case. Technician is to perform normal water testing diagnostics while the Heater-Vent-Air Conditioning is running, looking for water leaking past the plenum cover. If water is leaking past the cover remove the cover and install a 12x12 snow resistant screen to the fresh air intake. Reseal and install the plenum cover cap using Kent air dry sealer or equivalent.
PIP5130J2018-02-21. Service bulletin. ENGINE. This Preliminary Information communication provides information to the technician how to diagnose and repair a vehicle with an engine that runs with an intermittent crank no start with a Diagnostic Trouble Code P0011 or P00C6 current or history. The Camshaft Position Actuator Solenoid Valve may be sticking or binding causing the valve timing to be retarded. Dealer will need to cycle the Camshaft Position Actuator Solenoid Valve by energizing it using Global Diagnostic System 2.
PIT5552A2018-02-21. Service bulletin. COMMUNICATION; BACK OVER PREVENTION: CAMERA SYSTEM. This Preliminary information communicates repair information for therear vision camera or surround vision camera image being: - Yellow - Blurry -Distorted - Image scrolling - Image with NO gridlines - Screen is blue with gridlines - Screen is blue with Service Rear Vision System message
PIP55402018-02-21. Service bulletin. EQUIPMENT. This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components.
PIP5252B2018-02-21. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This Preliminary Information communication provides information to the technician about vehicles that the engine may run hot with the snow plow installed. Do not exceed 64 kilometers per hour / 40 miles per hour with a snow plow mounted to the vehicle even if equipped with VYU. The vehicle could overheat and be damaged.
PIT5576A2018-01-16. Service bulletin. STRUCTURE:BODY:HOOD:HINGE AND ATTACHMENTS; STRUCTURE:BODY:HOOD. This Preliminary information communicates and issue with the hood ajar message being displayed when the hood is not ajar. Inspect the body ground strap to insure it is connected in the proper locations and the strap eyelets are tight and do not rotate.
PIT5529A2018-01-16. Service bulletin. ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL. This Preliminary Information communication provides information to the technician about vehicles that have Trailer connection not recognized or “Check Trailer wiring” or “Service Trailer Brake” message. Technician may find Diagnostic Trouble Codes C1112, C1113, C1114, C111B, U1556, and/or U1505. Technician will need to inspect the battery and Trailer Brake Power Module connector for corroded terminals and replace as necessary.
PIC5650D2018-01-16. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this concern. If unable to duplicate the concern ask if the customer uses any Radio Frequency Identification Devices when the concern is present. Dealer should also direct their customers to the appropriate section in the Owner manuals that references that the device complies.
PIP4578B2018-01-16. Service bulletin. ENGINE AND ENGINE COOLING. This PI was superseded to update model years and add information concerning idle surge, reduced engine power mode, and/or DTCs P0068, P0121, P1516, P2101, P2119, and/or P2176 that may be experienced on high mileage vehicles. Please discard PIP4578.
PIT5354B2018-01-16. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary Information communication advises the technician how to determine if the vehicle is equipped with wireless fidelity. Technician should check the Regular Production Option Code list for (VV4).
PIC5491K2018-01-16. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that have an OnStar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. After the vehicle has powered down remove power to the OnStar module for five minutes. After the power has been removed for five minutes, if the OnStar system is working release the vehicle. If the OnStar system is still inoperative continue with published Service Information diagnostics.
PIT56042018-01-16. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary information communicates if the liftglass will not open using keyless entry to verify Valet Mode is not enabled.
PIT65042018-01-16. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary information communicates if the liftglass will not open using keyless entry to verify Valet Mode is not enabled.
PIP5498E2018-01-16. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates A vehicle may have a concern of DTCP050D setting along with a P0300 after a cold start up. White smoke and/or coolant odor may come from exhaust for an extended period of time at cold start as well. Cause Coolant getting into the cylinders, and provides direction for the repair.
PIT5341C2018-01-16. Service bulletin. STRUCTURE:BODY:DOOR. This Preliminary Information communication provides information to the technician about owners that want the auto door lock disabled. There is no avalible setting or Body Control Module calibration to turn off the auto door locks.
PIT5317B2018-01-16. Service bulletin. STRUCTURE. This Preliminary information communication provides information to the technician about vehicles with the rear body fuse block with a loose fuse connection. Technician will need to check terminal tension on the rear fuse block. Technician will need to replace the rear body fuse block if poor terminal tension is the issue. Technician will need to replace the appropriate terminated lead if something other than the main power buss bar has poor terminal tension.
PIT5325B2018-01-16. Service bulletin. ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS. This Preliminary Information communication provides information to the technician about the new 2015 - 2017 Tahoe Police Package Vehicle and Special Service Vehicle have four relay controlled circuits which can be utilized when installing special first responder equipment. Please reference the latest version of General Motors Upfitter Integration Bulletin 118 for additional information on these circuits.
PIC5839D2018-01-16. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about vehicles that may have a clock that is slow to update while driving when the clock auto set feature enabled. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
PIT5466B2018-01-16. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This Preliminary Information communication provides information to the technician to help converting vehicles to fleet key option Regular Production Option Code 6E2 or 6E8. Technician will need to check the Regular Production Option Code for 6E2 or 6E8. Technician will need to order the correct key part number per the Regular Production Option Code. Then the technician will need re-code the lock cylinders to match the Regular Production Option Code. Also replace the Body Control Module and normal Service Programming System to the Body Control Module will turn the vehicle to a common key.
17-NA-2442017-12-22. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides information on Information on How to Prevent Inadvertent Vehicle Starting from Key Fob or OnStar Mobile Application and where to locate the information for future use.
17-NA-2422017-12-22. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides to the tech the new version of SPS that will prompt warnings when trying to reprogram modules that have been already reprogrammed.
17-NA-2302017-12-22. Service bulletin. WHEELS. This informational bulletin provides information on mcgard wheel locks and if the key ever fractures that they will replace it via the website provided.
17-NA-1702017-12-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin explains the Road Force balancers and what they can do for customer concerns.
04-00-89-015P2017-12-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provide policy information on required operating procedures.
PIT4261E2017-12-14. Service bulletin. TIRES. This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities. This is a visual condition that will not affect durability, reliability or performance of the tires. Dealer should communicate to the customer that slight sidewall indentations are a common characteristic of radial tire construction.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.