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Service bulletins for the 2021 GMC Yukon XL

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.

1234 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
18-NA-1252024-06-28. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This service bulletin provides information for engine oil life monitor operation calculation.
24-NA-0982024-06-25. 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-0682024-06-22. 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.
23-NA-0322024-06-18. 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-0642024-06-10. 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.
18-NA-1252024-06-08. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This service bulletin provides information for engine oil life monitor operation calculation.
22-NA-2442024-05-30. 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-1502024-05-28. 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-3612024-05-28. 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-2482024-05-24. 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-0642024-05-16. 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.
13-08-116-001J2024-05-16. Service bulletin. ELECTRICAL SYSTEM. The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
23-NA-1252024-05-16. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides information for dealers/technicians on Over The Air (OTA) and In Market Enhancement (IME) FAQs.
18-NA-2792024-05-15. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This service bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.
24-NA-0702024-05-08. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. This bulletin provides a procedure to program the ECM if the DTC is set and/or the start/stop doesn't restart after a stop.
23-NA-0642024-05-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. 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.
21-NA-1552024-04-23. Service bulletin. ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC; EQUIPMENT. This informational bulletin advises the technician to check for faults that may be caused by the trailer otherwise found by a possible faulty trailer connector.
20-NA-1322024-04-23. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
PIT6015A2024-04-15. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. This Preliminary information communicates Diagnostic Tips When Having Difficulties Programming Or Adding Key Fobs / Transmitters.
24-NA-0622024-04-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This technical bulletin provides repair information to correct a customer concern of the E88 Front Floor Console Bin Lamp Inoperative.
22-NA-2582024-04-09. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This technical bulletin provides a procedure to program the TCM and replace the control valve body if the conditions are found to be the cause of the failure of the valve body.
24-NA-0622024-04-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This technical bulletin provides repair information to correct a customer concern of the E88 Front Floor Console Bin Lamp Inoperative.
20-NA-1322024-04-05. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
10-08-45-001H2024-04-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.
24-NA-0602024-03-29. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides repair information to correct a customer concerns of Radio Software issues.

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