WenmarOpen by Wenmar Pro

Service bulletins for the 2008 GMC Yukon

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.

1423 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
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.
06-00-89-026L2017-08-15. Service bulletin. SERVICE BRAKES; EQUIPMENT:ELECTRICAL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; EQUIPMENT:APPLIANCE:AIR CONDITIONER; POWER TRAIN:AXLE ASSEMBLY; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. This warranty administration bulletin provide policy information on a revised customer concern not duplicated/verified labor operation numbers and how to submit CCND.
PIT4605D2017-08-15. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This Preliminary Information communication provides information to the technician about vehicles that have a cold air leak on the front passenger side while driving. Technician will need to use black RTV silicone and apply over the seam between the upper and lower Heater-Vent-Air Conditioning case halves.
PIT3330F2017-08-15. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This Preliminary Information communication provides information to the technician about customers may inquire about the availability of the passenger compartment air filter. Dealer should advise the customer starting in 2003 the passenger compartment air filter is no longer available as a factory option.
PIT52922017-08-15. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about vehicles that may have an air condition that has poor performance during high ambient temperatures. Technician will need to check the refrigerant charge and record the recovered amount on the repair order. Technician should recharge the system if needed. Technician will also need to verify if Global Diagnostic System 2 high side readings match a high side pressure gauge. If the readings vary greatly diagnostics will need to be performed.
PIT4211D2017-03-22. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE AN OUTSIDE AIR TEMPERATURE INOPERATIVE. TO PERFORM AN INSTANT UPDATE OF THE AMBIENT TEMPERATURE SENSOR, PRESS AND HOLD THE RECIRC BUTTON AND AIR CONDITIONING BUTTON ON THE HEATER-VENT-AIR CONDITIONING CONTROL HEAD SIMULTANEOUSLY. IT IS ALSO POSSIBLE TO PERFORM THIS BY USING A SCAN TOOL IN SPECIAL FUNCTION MODE AND SELECT INSTANT UPDATE.
PI-06952012-05-01. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR. GM: DIAGNOSE AND REPAIR HVAC BLOWER FUNCTION. MAY NOT BE ANY AIR FLOW FROM THE HVAC VENTS. ONE POSSIBLE OF THIS CONDITION MAY BE THE CONTACTS IN THE HVAC JUNCTION BLOCK(S) LOCATED AT THE RIGHT SIDE OF THE INSTRUMENTAL PANEL. *JS UPDATED 1/24/13. *PE
PI-06482012-04-07. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. CADILLAC/CHEVROLET/GMC: ORIGINAL STYLE BLOWER MOTOR ASSEMBLY IS NO LONGER AVAILABLE. A REVISED HVAC BLOWER MOTOR ASSEMBLY FOR FULL SIZE TRUCKS IS REQUIRED, WITH MODIFICATIONS, TO FUNCTION PROPERLY. *PE UPDATED 2/25/13. *PE

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