The 2017 Enclave is the final year of the first generation with the LFY 3.6L V6 and the 6T75 6-speed automatic. Common issues include timing-chain wear (largely improved over 2008-2010 cars), wave-plate failure in the 6T75 transmission, and water-pump failure on the LFY V6.
Final-year first-gen Enclave is more refined than early builds. Transmission wave-plate and water-pump issues dominate.
Internal wave-plate cracks causing harsh shifts and limp mode. GM TSB PIP4783 documents the failure. Full rebuild or replacement transmission.
View P0700 Diagnosis →Internal water pump leaks; coolant disappears with no external sign. Common LFY V6 failure.
View P0118 Diagnosis →Improved over 2008-2010 but stretch still occurs. Listen for rattle at cold start.
View P0008 Diagnosis →Hydraulic power-steering pump leaks and whines.
Run free diagnosis →Low-mounted condenser is vulnerable to road debris.
Run free diagnosis →Screen freezes, lost backup camera. Software updates available.
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Only with documented transmission service. The 6T75 wave-plate failure is the biggest risk.
Mid-pack. Better than 2008-2012 but still inherits the 6T75 transmission risk.
Plan $800-$1,100/year by year 8. Budget $3,500 contingency for transmission wave-plate. Lifetime non-routine cost typically $5,000-$8,000 to 150K miles.
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If your 2017 Buick Enclave is throwing a check engine light, these are the codes most often associated with the problems above. Click any code for full diagnosis steps and typical repair costs.
Average. Better than the early first-gen cars but the 6T75 transmission and water pump are still concerns.
The 6T75 6-speed transmission wave-plate failure between 80K and 120K miles.
With proactive transmission service, 180,000 miles. Without, the wave plate often ends the cars life.
A 2018+ second-gen has a different powertrain and far fewer transmission issues.
Yes including Takata airbags and several smaller campaigns. Check VIN at nhtsa.gov.
No scheduled replacement. Listen for cold-start rattle around 90K-110K miles as the early warning.