Service bulletins for the 2021 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.
1240 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 22-NA-018 | 2024-07-12. Service bulletin. UNKNOWN OR OTHER. This service bulletin provides information for the Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S. Dealers Only). |
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| 18-NA-099 | 2024-07-12. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim. |
| 22-NA-182 | 2024-07-09. Service bulletin. POWER TRAIN. This service bulletin advises the technician to check if the transmission cooler lines are twisted to correct customer concerns of Harsh Shift, Shudder, Surge, Stall, Transmission Overheating and/or High Transmission Fluid Temperature. |
| 19-NA-218 | 2024-06-28. Service bulletin. ENGINE. This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine. |
| 18-NA-125 | 2024-06-28. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This service bulletin provides information for engine oil life monitor operation calculation. |
| 24-NA-098 | 2024-06-25. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information. |
| 21-NA-068 | 2024-06-22. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information requirements applicable to key fob replacement under the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2017-2022 and newer model year vehicles with RPO ATH and AVJ. |
| 20-NA-016 | 2024-06-22. Service bulletin. UNKNOWN OR OTHER. This Warranty Administration bulletin provides information on customer vehicles concern results in a manufacturer repurchase from the customer, GM depends on the dealership to host and administer the repurchase closing and intake of the returning vehicle. |
| 23-NA-032 | 2024-06-18. Service bulletin. ENGINE; ELECTRICAL SYSTEM. The informational bulletin advises the tech to use the glow plug bore cleaner to reduce the chance of soot building up on the glow plug causing a premature failure. |
| 23-NA-142 | 2024-06-18. Service bulletin. POWER TRAIN. This technical bulletin provides a procedure for the techs to replace the forward check ball and separator plate if found the cause of the customers concern of No Forward Gear When Shifting from Park to Drive and/or Reverse to Drive. |
| 23-NA-064 | 2024-06-10. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships. |
| 19-NA-136 | 2024-06-08. Service bulletin. POWER TRAIN. This service bulletin provides a diagnostic procedure to aid in correcting a customer concern of a Howling, Whining/Whirring Noise, Shudder/Vibration and/or Grinding Noise While in 4HI, 4HI Auto and/or During Parking Lot Maneuvers in Auto Mode. |
| 18-NA-125 | 2024-06-08. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This service bulletin provides information for engine oil life monitor operation calculation. |
| 16-NA-119 | 2024-06-07. Service bulletin. UNKNOWN OR OTHER. This warranty administration bulletin provides policy information to cover GMs policy on performing GM covered vehicle services and maintenance on vehicles originating/sold in Canada. |
| 08-07-30-035H | 2024-06-07. Service bulletin. POWER TRAIN. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid. |
| 22-NA-070 | 2024-05-31. Service bulletin. UNKNOWN OR OTHER. This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements. |
| 18-NA-067 | 2024-05-31. Service bulletin. WHEELS. This service bulletin provides information for cleaning brake dust off of aluminum or chrome wheels. |
| 09-00-89-008G | 2024-05-31. Service bulletin. UNKNOWN OR OTHER. This Warranty Administration bulletin provides retail and wholesale service personnel with the policies/procedures and the warranty transaction submission procedures that support the Personal Property Damage process. |
| 23-NA-154 | 2024-05-31. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only). |
| 22-NA-244 | 2024-05-30. Warranty extension. ELECTRICAL SYSTEM; EXTERIOR LIGHTING; STRUCTURE:BODY; UNKNOWN OR OTHER; SERVICE BRAKES. This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period. |
| 22-NA-106 | 2024-05-30. Service bulletin. WHEELS. This service bulletin provides information on GM Canada New Vehicle Tire Warranty Program for Original Equipment (OE) Tires and PDI installed Limited Production Option (LPO) Tires. |
| 22-NA-150 | 2024-05-28. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This technical bulletin provides a procedure to program the Reductant Control Module and Setup and Perform the Reductant Fluid Tank Level Reset. |
| 18-NA-361 | 2024-05-28. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the fuel system caused by a failed part. |
| 22-NA-248 | 2024-05-24. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This technical bulletin provides service information to correct a customer concern of HVAC Heat Intermittently Inoperative, DTCs B2B05 and/or B2B06 Set. |
| 23-NA-064 | 2024-05-16. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.