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Service campaign N262546590

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService campaign
NHTSA id11030466
Published by NHTSA2026-04-01
Manufacturer's numberN262546590
Manufacturer's date2026-04-01
NHTSA componentFUEL/PROPULSION SYSTEM

NHTSA's summary

Certain vehicles listed above, may have a condition where coolant leaks from the radiator hose quick connect at the radiator inlet. This special coverage covers the condition described above for a period of 5 years or 60,000 miles (100,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after April 1, 2026, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to April 1, 2026, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (“Customers”) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to remove the inlet hose and replace the seal. The repairs will be made at no charge to the customer.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Fuel system

Vehicles listed
BUICK ENCLAVE2025, 2026
CHEVROLET TRAVERSE2024, 2025, 2026
GMC ACADIA2024, 2025, 2026

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
N2525422002026-03-16. Service campaign. Service Update. Certain vehicles listed above may have contamination inside the high-pressure fuel pump spill valve assembly. Dealers will replace the high pressure fuel pump.
N2625448502026-02-09. Service campaign. Service Update. Certain vehicles listed above may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power control module.
24-NA-1392025-06-07. Service bulletin. This service bulletin provides a procedure to replace the FPDCM if found to cause customers concerns of Crank No Start, Stalling, Malfunction Indicator Lamp (MIL) Illuminated – DTC P023F or P129F Set.
PIP60612025-05-19. Service bulletin. This Preliminary information communicates there could be an electrical connection concerns at the high pressure fuel pump, and may set any combnation of diagnostic trouble codes, P0089 P0090 P00C6 P163A and / or P228C. The technician should inspect the terminals and manipulate the harness to see if any of the codes can be duplicated. Replace or repair connector or terminals as needed.
25-NA-0652025-04-24. Service bulletin. This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.
24-NA-2442025-04-11. Service bulletin. This bulletin provides a procedure to replace the fuel injectors and perform a pcm software update to confirm if the issue of cold start rough idle has subsided.
PIT5985G2024-12-17. Service bulletin. This Preliminary information communicates diagnostic tips on how to resolve a issues with vehicles that will not power up after a can bus 2 issue, lightning strike, or a failed over the air update.
PIP5993C2024-12-04. Service bulletin. This Preliminary information communicates when diagnosing P050D cold start misfire runs rough, if any fuel injectors need to be replaced, all the fuel injectors must be ordered and replaced at the same time due to fuel injector flow rates being matched.
05-06-04-022V2024-09-05. Service bulletin. This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
16-NA-3832024-07-16. Service bulletin. This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.