WenmarOpen by Wenmar Pro

Service bulletins for the 2015 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.

1818 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with component: Heating and air conditioning are shown. Show all

Bulletins, newest first
PIT5425A2017-08-15. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:APPLIANCE:AIR CONDITIONER. This Preliminary Information communication provides information to the technician about vehicles that have a Heater-Vent-Air Conditioning system will not switch to floor mode. Technician will follow the repair procedure and illustrations associated with Mode Control Cam Replacement in Service Information and align the Mode Door Levers to the Mode Control Cam.
PIT55252017-08-15. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This Preliminary Information communication provides information to the technician about vehicles that have poor air conditioning performance above 80 Degrees Fahrenheit. Technician will need to ensure that the system charge is correct. Technician should be advised that engineering has determined that there may be two issues that could cause the concern. First the technician will need to monitor the High and low pressure with manual gauges and Global Diagnostic System 2 monitoring the AC Compressor Solenoid Commanded % in the ECM /HVAC data. If the pressures start to equalize but the Commanded Compressor % returns to 100%, turn off the Air Conditioning using the switch and then turn it back on or shut off the engine and restart it. If system begins to blow cold again and the gauges recover to normal, replace the Air Conditioning compressor. Second the technician should monitor and record the Heater-Vent-Air Conditioning readings. If it is found most of these readings are in specification but the low side pressure is at the low end of that specification and the Evaporator Air Temperature Sensor reads approximately 10 degrees or more higher than the technician should infrared thermometer measure the temperature of the 2 locations, about 2 inches in from the edge of the core of the condenser. f there a difference of more than 10 degrees Fahrenheit top to bottom, replace the condenser.
PIT53432017-08-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:APPLIANCE:AIR CONDITIONER. This Preliminary Information communication provides information to the technician about when starting the vehicle there is a lack of air flow through the Heater-Vent-Air Conditioning vents and that the indicators on the Heater-Vent-Air Conditioning controls are illuminated and the display may show Heater-Vent-Air Conditioning off. Technician should reprogram the Heater-Vent-Air Conditioning control module using Service Programming System with the latest calibration.
PI14402017-08-15. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This preliminary informational bulletin provides technicians with diagnostic tips for a customer concern of odor emanating from HVAC system.
PI14342017-08-15. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; SEATS; EQUIPMENT:ELECTRICAL. This preliminary informational bulletin details the systems operations Information on HVAC system, heated seat, and rear defogger operation during a remote vehicle start event.
PIT5322A2016-09-27. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES WITH A HEATER-VENT-AIR CONDITIONING THAT HAS A DELAY WHEN SWITCHING BLOWER SPEED. THIS IS A NORMAL OPERATING CHARACTERISTIC. NO REPAIRS OR PART REPLACEMENTS SHOULD BE PERFORMED FOR THIS CHARACTERISTIC OPERATION.
PIT53432016-06-17. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PIT53222016-06-17. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR. SUMMARY TO BE PROVIDED ON A FUTURE DATE.

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