General Motors Issued Cadillac Radiator Service Update
Owners of 2023-2025 Cadillac XT5 and XT6 models should check for a service fix to prevent cooling system leaks.
Updated on Sept. 20, 2026 in Car Maintenance
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General Motors has released a service update for 2023-2025 Cadillac XT5 and XT6 vehicles to address radiator coolant leaks. The procedure requires technicians to remove thermal break tabs that can induce stress on the radiator.
Why it matters
The thermal break tabs on these specific radiators cause structural stress, which can lead to coolant leaks. Addressing this issue now prevents potential engine cooling failures and long-term damage to the radiator assembly.
Service Update N262570770 applies to 2023-2025 Cadillac XT5 and XT6 models. The repair takes approximately 0.3 hours of technician time and requires no replacement parts.
The players
General Motors
The automotive manufacturer responsible for the production of Cadillac vehicles and the issuance of service bulletins.
Cadillac
The luxury vehicle division of General Motors that produces the XT5 and XT6 models.
The details
Technicians perform the fix by removing the air splash shield and pulling back the upper radiator air baffle to expose the thermal break tabs. Using side cutters, they remove four specific tabs located on the sides of the radiator to relieve the structural stress that leads to leaks. This service is available through the GM Global Warranty Management system.
Timeline
November 2025: Cadillac XT6 production ended.
September 30, 2028: Service bulletin N262570770 expires.
The Home Front
This update reflects a common manufacturer practice of refining component design post-production to improve long-term reliability. It aligns with standard maintenance workflows captured in the GM Global Warranty Management system.
If you own a 2023-2025 Cadillac XT5 or XT6, check your vehicle records or contact a local Cadillac service center to see if your car is covered under service bulletin N262570770. Since this repair requires removing components to access the radiator, schedule an appointment with a licensed technician to perform the procedure.
The takeaway
Proactive service updates like this one help prevent significant mechanical failures by correcting minor structural issues early. Keep your service records updated and verify if your vehicle qualifies for this bulletin by checking with an authorized GM service department.
Further reading
For more information on maintaining your vehicle's cooling systems, visit Car Maintenance.
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