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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
19NA1042019-07-29. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. This informational bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area.
18NA1032019-07-29. Service bulletin. FUEL SYSTEM, GASOLINE. This Bulletin provides information to correct a customer concern of a siren or whine noise from the in-tank fuel pump at temperatures below -6C or 20F, accompanied by start and stall, no start, loss of power and MIL illuminated. Technicians may find DTCs P0087, P018B, P228A, P228B or P2635 set in ECM.
16NA3382019-07-29. Service bulletin. POWER TRAIN. This Bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns.
19NA0072019-07-29. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. This technical bulletin provides a procedure to replace the surge tank if found the cause of the customers concern.
16NA2222019-07-29. Service bulletin. EQUIPMENT. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
PIT56962019-07-08. Service bulletin. SERVICE BRAKES. This preliminary information discusses potential for a code C0010.5A to store in the brake controller which appears to be setting falsely and advises engineering is investigating the concern.
PIT5324B2019-07-08. Service bulletin. ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL. This Preliminary Information communication provides information to the technician about installing an aftermarket Trailer Brake Controller. Technician will find that that vehicle is not equipped with Trailering Package Regular Production Option Code Z82, there are also blunt cut wires at the spare tire for the trailer connector. Technician will install the aftermarket Trailer Brake Controller to the blunt wires behind the lefts side kick panel. Technician will install the trailer connector to the blunt wires under the vehicles near the spare tire.
PIP4670G2019-07-08. 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.
PIT5074L2019-07-08. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking tension or probing the .64 series terminals. The test probe terminal has been released in the terminal repair kit (J-38125-620H) located in Lear Tray 7 part number 963716-2. There are 5 terminated leads in a package part number is 13505346, which can be ordered through your normal General Motors Customer Care and Aftersales parts channel.
120851002J2019-07-01. Service bulletin. STRUCTURE; EQUIPMENT. This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information and repair procedures.
080730035D2019-07-01. Service bulletin. POWER TRAIN. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
19NA1072019-07-01. Service bulletin. STRUCTURE. This technical bulletin provides repair information to correct a customer concern of the extended cab rear door ajar indicator illuminated intermittently.
19NA0942019-07-01. Service bulletin. STRUCTURE. This technical bulletin provides a procedure for installing screws to the center pillar upper trim panel structure on the affected sides to eliminate the ticking type noise.
18NA1272019-07-01. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This informational bulletin provides information to check and verify that no leaks are found and clean the flux build up using a good brush.
16NA3832019-07-01. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This informational bulletin advises of a new fuel injection kit used for decarbonizing the intake valves, and explains how toptier fuels should be used to reduce carbon build up.
16NA3802019-07-01. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. This informational bulletin provides a procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.
16NA1192019-07-01. Service bulletin. EQUIPMENT. This warranty administration bulletin provide policy information to cover GM's policy on performing GM covered vehicle services and maintenance on vehicles originating/sold in Canada.
080089014E2019-07-01. Service bulletin. EQUIPMENT. This informational bulletin provides information for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S. Technical Assistance (TAC).
000310006N2019-07-01. Service bulletin. TIRES. This informational bulletin provides information for dealers/technicians on Tire Radial Force Variation (RFV).
18NA3552019-07-01. Service bulletin. POWER TRAIN. This technical bulletin provides information for new transmission oil to use and a procedure for exchanging the old fluid and adding the new fluid to correct a shake/shudder during light throttle acceleration condition.
18NA2662019-07-01. Service bulletin. ELECTRICAL SYSTEM. This technical bulletin provides repair information to correct a customer concern of an intermittent blank or flickering driver information center (DIC).
PIT5323B2019-06-10. Service bulletin. EQUIPMENT. This Preliminary Information communication advises the technician about the narrowing of the bedrails. When installing a bed rail accessory the concern is made visible. This is a characteristic of the sleek design of the vehicle and no repair is necessary. Please communicate to the customer this condition is a normal design characteristic of their vehicle.
PIP5632A2019-06-10. Service bulletin. EQUIPMENT. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
PIT5492B2019-06-10. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have the battery is discharged overnight. Technician will need to inspect X301 for bent pins as shown below. Repair or replace terminals as needed.
PIT56882019-06-10. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING. This preliminary information was released to advise of an alternate means of purging the air from the cooling system.

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