This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
full bulletin at NHTSA ↗2025 Buick Enclave engine problems
moderate 3 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering engine on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This bulletin provides a procedure to verify a noise and replace the oil pump shaft assembly if the gears of the pump and balance shaft are found the issue of the customers concern.
full bulletin at NHTSA ↗This bulletin provides a procedure to replace the oil pump due to a loose drive pump gear not pressed on the pump shaft.
full bulletin at NHTSA ↗The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
full bulletin at NHTSA ↗This bulletin provides a procedure to locate and repair a possible cooler galley plug if found the cause of the customers concern of an oil leak from front of vehicle.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 1 most recent
What component or system failed or malfunctioned, and is it available for inspection upon request? The engine and/or powertrain system catastrophically failed while the vehicle was in motion on the freeway. The vehicle lost power, shut down, and became disabled. The vehicle is currently in the possession of the Buick dealership and is available for inspection upon request. How was your safety…
Common questions
How serious is the engine problem on the 2025 Buick Enclave?
It's a documented issue but not catastrophic. 3 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.