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Service bulletins for the 2018 GMC Canyon

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.

1246 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
PIT5479B2019-03-18. Service bulletin. SERVICE BRAKES. This Preliminary Information communication provides information to the technician about fluid leaking from the brake caliper piston area found during a service of the vehicle. The substance is actually excess assembly grease from the caliper boot and piston installation. This grease can be cleaned off and the rest of the service completed.
PIP5545B2019-03-18. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates a possible noise from the water pump causing a DTC and the diagnostics for the repair.
PIP5540B2019-03-18. Service bulletin. ENGINE AND ENGINE COOLING. 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.
PIP4925B2019-03-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This preliminary information document communicates a tip on the way to diagnose possible induction or exhaust air leaks using the evaporative emission cart smoke machine and ultrasonic leak detector tools.
18NA1772019-03-18. Service bulletin. POWER TRAIN. This technical bulletin is providing a diagnostic information and a procedure to flush the transmission system and replace transmission filter.
PIT5493A2019-03-11. Service bulletin. FUEL SYSTEM, GASOLINE. This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have a fuel gauge that does not read below half a tank. Technician will gain access to the fuel pump and inspect to see if the level sender contacting the side of the fuel tank. The fuel tank fuel pump module fuel level sensor will need to be replaced for this concern.
PIT5516B2019-03-11. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. This Preliminary Information communicates the steps on diagnosing the concern of the accessory off road lamps are inoperative after installation.
PIP4021D2019-03-11. Service bulletin. POWER TRAIN. This Preliminary Information communication provides information to the technician that a whine noise heard from the automatic transmission fluid pan hear with the the key on and engine off, or for up to one minute after the vehicle has been shut off should be deemed a normal characteristic.
PIP5540D2019-03-11. Service bulletin. ENGINE AND ENGINE COOLING. 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.
PIP56282019-03-11. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
PIT5444D2019-03-11. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication provides information to the technician about the text messaging feature on some newer General Motors infotainment systems. Pair the iPhone to the system then enter the Bluetooth settings menu, select the ?i? icon next to the vehicle name in the device and enable show notifications. The text messaging feature will be available on the next ignition cycle. However with iPhones text messages cannot be responded to when using the infotainment system, they can only be received. For android devices pair the phone to the system during the pairing process the phone will ask you to allow the vehicle to access the device contacts. A second question will pop up on the device asking to allow the vehicle to access the message access profile. Both have to be allowed for the text messaging feature to work.
18368-012019-03-11. Service bulletin. ENGINE AND ENGINE COOLING. 18368 - Customer Satisfaction Program. Certain Chevrolet Colorado and GMC Canyon vehicles equipped with the 3.6L LGZ engine may experience a loss of engine oil caused by high oil pump pressure in cold weather start conditions. High oil pump pressures under these conditions may cause various components to fail, including the engine oil cooler (EOC), EOC lines, or the oil pump itself, resulting in a loss of lubrication in the engine. If this condition occurs, the Driver Information Center will display an oil can light and multiple warning messages (Oil Pressure Low, Turn Vehicle Off, or Engine Power is Reduced), depending on the state of the engine. If the vehicle continues to be driven with low oil despite the appearance of these warnings, the vehicle?s engine may seize, resulting in a stall or loss of propulsion. Only applies to vehicles in Canada or currently registered or previously registered in the state of Alaska. Dealers will replace the oil pump.
183682019-03-11. Service bulletin. ENGINE AND ENGINE COOLING. 18368 - Customer Satisfaction Program. Certain Chevrolet Colorado and GMC Canyon vehicles equipped with the 3.6L LGZ engine may experience a loss of engine oil caused by high oil pump pressure in cold weather start conditions. High oil pump pressures under these conditions may cause various components to fail, including the engine oil cooler (EOC), EOC lines, or the oil pump itself, resulting in a loss of lubrication in the engine. If this condition occurs, the Driver Information Center will display an oil can light and multiple warning messages (Oil Pressure Low, Turn Vehicle Off, or Engine Power is Reduced), depending on the state of the engine. If the vehicle continues to be driven with low oil despite the appearance of these warnings, the vehicle?s engine may seize, resulting in a stall or loss of propulsion. Only applies to vehicles in Canada or currently registered or previously registered in the state of Alaska. Dealers will replace the oil pump.
PIT56442018-12-17. Service bulletin. ELECTRICAL SYSTEM. This preliminary information describes a concern where the temperature gauge may fluctuate or possibly read higher than expected. Engineering is working towards a fix
PIT5340C2018-12-17. Service bulletin. STRUCTURE:BODY:HOOD. This Preliminary Information communication provides information to the technician about vehicles that have a hood that may shake or flutter while driving. Technician will need to adjust the hood bumpers for this concern.
PIT5353C2018-12-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Preliminary Information communication provides information to the technician about what XM offerings are available for vehicles. A dealer or customer can access the website listed below for vehicle specific XM offerings and availability.
PIT5625A2018-12-17. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:APPLIANCE:AIR CONDITIONER. This preliminary information is to alert the service technician of a potential A/C evaporator freezing concern , engineering is investigating.
PIT5420F2018-12-17. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:HEATER CORE; ENGINE AND ENGINE COOLING. This Preliminary Information communicates information to the technician about vehicles that may have a water rush or gurgle type noise from the center dash area. Engineering is aware of the concern and it is under investigation. Inspect the system for coolant leaks and proper coolant level. No other repairs are to be performed at this time.
PIP56012018-11-13. Service bulletin. EQUIPMENT. This Preliminary information communicates
PIT5605A2018-11-13. Service bulletin. SEATS. This preliminary information shows how to inspect for and correct a rattle from the rear seat latches.
PIP5416C2018-11-13. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communicates to the technician the potential areas of concern in which the engine wiring harness may chafe. It describes in detail what to look for.If you encounter any of these specific described chafes, inspect, repair (as necessary) and route the wiring harness away from these possible chafe points.
PIT56352018-11-13. Service bulletin. SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY. This preliminary information suggests the technician verify a noise from the rear is or isn't coming from the rear leaf springs before a service on the springs is performed.
PIT5099D2018-11-13. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
PIP5486F2018-11-13. Service bulletin. ENGINE. This Preliminary information communicates possible concerns and a diagnostic strategy to locate and repair various noises within the engine as well as some misfire causes.
PIP55972018-11-13. Service bulletin. ENGINE; EQUIPMENT:OTHER:LABELS. This Preliminary information communicates to the technician where to find the engine identification tag and what information on that tag to use during programming of someengine control modules.

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