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Service bulletins for the 2018 Chevrolet Suburban

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.

1255 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
PIT5411J2018-03-12. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, display, and Media Disc Players are placed on restriction through the General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
PIP4670E2018-03-12. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another. The Global Architecture electrical system associated with these vehicles does not allow controller swaps between vehicles.
PIP55532018-03-12. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY. This Preliminary information communicatesThe vehicle may have an ses lamp with any of the following DTC P06DA, P06DB, P06DC, P06B6, P06B7, P250A, P0300, P0340, P0341, P0335, P0336, P0641, P0011, P0010, P2088, P2089, and/or P2230. Possible crank no start or a stall. possible wiring jumper harness chaffed at the bolt at the X154 connector on lower left side of the frount cover.
PIP5226B2018-02-21. Service bulletin. ENGINE. This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change. Technician will gain access to the roller rockers to inspect them. Only replace the roller rocker that is missing needle bearings. Be sure to clean the oil drains to retrieve the needle bearings. Each roller rocker has 66 bearings.
PIP4138Q2018-02-21. Service bulletin. EXTERIOR LIGHTING. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Technician may find Diagnostic Trouble Codes P0300-P0308. If published Service Information diagnostics does not isolate the cause of this concern technician should check for a worn camshaft lobe and/or lifter roller, a sticking valve, valve leakage, a broken valve spring, and a collapsed active fuel management lifter.
PIP5498F2018-02-21. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicatesA vehicle may have a concern ofDTCP050D settingalongwith 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. CauseCoolant getting into the cylinders, and provides direction for the repair.
PIT3271H2018-02-21. Service bulletin. WHEELS. This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
PIT3665F2018-02-21. Service bulletin. SERVICE BRAKES. This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.
PIT5481C2018-02-21. Service bulletin. AIR BAGS; POWER TRAIN; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; STEERING; LANE DEPARTURE. This Preliminary Information communication provides information to the technician with additional information on the functionality of Lane Keep Assist.Starting with2016 model year Lane Keep Assist Regular Production Option Code (UHX) replaced Lane Departure Warning Regular Production Option Code (UFL). Lane Keep Assist is designed to assist the driver in keeping the vehicle from drifting out of a driving lane that has clearly identified markings. The electric power steering provides a gentle steering correction if a lane marking has been crossed and the driver has not actively responded.
PIT5233D2018-02-21. Service bulletin. WHEELS; SEAT BELTS; ELECTRICAL SYSTEM; STEERING; SERVICE BRAKES, HYDRAULIC; ELECTRICAL SYSTEM:IGNITION. This Preliminary Information communication provides information to the technician about vehicles that may have hard or unable to rotate ignition key concern. When the concern is present the steering wheel will need to be rotated in either direction to alleviate the pressure between the steering column lock pin and lock plate. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.
PIP5446A2018-02-21. Service bulletin. BACK OVER PREVENTION. This Preliminary Information communication provides information to the technician about vehicles that have a Harsh Shift 1/2 and 2/3 and Sputter Applying Throttle Between 0 and 30%, Rough idle. Technician may find Diagnostic Trouble Codes P0101, P0171, P0172, P0174, and or P0175. Technician should inspect for cast flashing near the Mass Air Flow sensor as seen below.
PIP5540A2018-02-21. Service bulletin. ENGINE. 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. That any of the listed DTC's may set with or without poor engine performance.
PIP5504A2018-02-21. Service bulletin. POWER TRAIN. This Preliminary Information communication provides information and definitionsto the technician about vehicles that have fishbite, chuggle, misfire,AFM disturbances or torque converter shudder/vibrationconcerns. Technician are advised to use PICO software to determine root cause of the concern. If torque converter shudder is confirmed and no debris is found in the transmission fluid pan the technicians are instructed to flush the transmission fluid three times. If debris is found in the transmission fluid pan the technicians are instructed to also replace the torque converter.
PIP5330C2018-02-21. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician about vehicles that have a coolant loss and/or coolant odor after driving the vehicle. Technician will need to test the cooling system looking for leaks at the outer head bolts. If coolant is found replace the head the concern is present on.
PIP5168F2018-02-21. Service bulletin. POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT; BACK OVER PREVENTION; FUEL SYSTEM, GASOLINE. This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a no crank concern. Technician will need to check the valve train for movement when the engine is cranked. If the valve train is not moving while the crankshaft is moving the front cover will need to be removed to inspect for a sheared cam sprocket locator pin. If the cam sprocket locator pin has sheared, replace the engine assembly. If the valve train is rotating during inspection, disconnect the Camshaft Position sensor and check if the engine will start. If the engine starts front cover will need to be removed to inspect for a sheared cam sprocket locator pin. If the cam sprocket locator pin has sheared, replace the engine assembly. If the engine does not start with the Camshaft Position sensor disconnected the follow published “Engine Cranks But Does Not Run” diagnosis in Service Information. Also perform an Engine Compression Test and Cylinder Leakage Test in Service Information documents all results. If the Service Information procedures above isolate an engine mechanical concern then removed to inspect for a sheared cam sprocket locator pin. If the cam sprocket locator pin has sheared, replace the engine assembly.
PIP5308B2018-02-21. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE; EXTERIOR LIGHTING. This Preliminary Information communication provides information to the technician about vehicles with the Service Engine Soon Malfunction Indicator Lamp on. Technician should follow published Service Information diagnostics that will lead to an oil pump replacement. Technician should replace the oil pump. If debris is found, the main and rod bearings should be inspected before engine replacement is considered.
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.

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