What are the most common Buick Enclave problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2008-2016, 2018-2021 Buick Enclave has 10 documented issues. The most frequently reported are: 3-5-Reverse Clutch Wave Plate Can Fracture (Special Coverage 14404), Intermittent Loss of Steering Assist (Special Coverage 14329B), Cylinder-Head Porosity Can Contaminate Engine Oil (PIP5674). Of these, 5 are rated critical and should be addressed promptly.
Is the Buick Enclave reliable?
The 2008-2016, 2018-2021 Buick Enclave has 10 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 5 issues are rated critical: 3-5-Reverse Clutch Wave Plate Can Fracture (Special Coverage 14404) and Intermittent Loss of Steering Assist (Special Coverage 14329B) and Cylinder-Head Porosity Can Contaminate Engine Oil (PIP5674) and Premature Timing-Chain Wear (Special Coverage 11340C) and P2731 Software Anomaly Can Leave Only 1st or Reverse (18-NA-379). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
What year Buick Enclave is the most reliable?
Reliability varies across model years of the Buick Enclave. Based on documented issues, problems are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2008-2016, 2018-2021 Buick Enclave with 10 documented issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports.
What is the 2008-2009 Buick Enclave 3-5-Reverse Clutch Wave Plate Can Fracture (Special Coverage 14404)?
GM identifies some 2008-2009 Buick Enclave vehicles equipped with a 6T70/6T75 six-speed automatic transmission in which the 3-5-reverse clutch wave plate can crack or fracture. The documented result is loss of reverse, 3rd and 5th gears; drivers may also notice slip, flare or har… Severity: high.
What is the 2008-2011 Buick Enclave Intermittent Loss of Steering Assist (Special Coverage 14329B)?
GM Special Coverage 14329B identifies some 2008-2011 Buick Enclave vehicles that can develop power-steering pump wear. The wear can intermittently reduce hydraulic pressure, causing reduced or lost steering assist and much greater steering effort, particularly during low-speed ma… Severity: high.
What is the 2019 Buick Enclave Cylinder-Head Porosity Can Contaminate Engine Oil (PIP5674)?
GM PIP5674 applies to 2019 Enclave vehicles with the 3.6L LFY engine. Internal porosity near an outer cylinder-head bolt area can allow coolant to contaminate the engine oil, producing a ticking noise, coolant loss, very dark or sticky oil and a check-engine light with cam/crank… Severity: high.
What is the 2009 Buick Enclave Premature Timing-Chain Wear (Special Coverage 11340C)?
GM Special Coverage 11340C identifies certain 2009 Buick Enclave vehicles with a 3.6L V6 in which the timing chain could wear prematurely under certain driving conditions and the original oil-change intervals, illuminating the Service Engine Soon light. Severity: high.
What is the 2019 Buick Enclave P2731 Software Anomaly Can Leave Only 1st or Reverse (18-NA-379)?
GM Bulletin 18-NA-379 applies to 2019 Enclave vehicles with the 3.6L LFY engine and 9T65 M3W automatic transmission. A transmission-control software anomaly can illuminate the MIL, leave only 1st gear or reverse, prevent upshifts, limit the vehicle to about 25 mph or make the 1-2… Severity: high.
What is the 2008-2011 Buick Enclave Cold-Weather PCV Deposits Can Cause Reduced Power (PI0746)?
GM PI0746 covers 2008-2011 Buick Enclave vehicles with the 3.6L LY7 or LLT engine. After a cold start or low-ambient-temperature driving, condensation can freeze at the throttle-body base while engine vapors, fuel dilution and oil mist collect in the air-inlet duct. The condition… Severity: medium.
What is the 2008-2016 Buick Enclave A-Pillar Water Intrusion Can Cause Electrical Faults (08-08-57-003F)?
GM Bulletin 08-08-57-003F documents water entering the right A-pillar or right-front floor area on 2008-2016 Enclave vehicles. Water may reach the instrument-panel bussed electrical center, producing communication loss, a no-crank/no-start condition, an engine that continues runn… Severity: medium.
What is the 2018-2021 Buick Enclave Low-Speed Torque-Converter Clutch Shudder (18-NA-091 / PIP5608F)?
GM documents low-speed torque-converter clutch shudder on 2018-2021 Enclave vehicles with the 9T65 automatic transmission. Drivers may feel a slight shudder, surge, fishbite or chuggle during a light-throttle shift below 40 mph when the TCC reapplies. PIP5608F says 2019-2021 case… Severity: medium.
What is the 2008-2010 Buick Enclave Water-Pump Shaft Seal Can Leak (Special Coverage 13091)?
GM Special Coverage 13091 identifies certain 2008-2010 Buick Enclave vehicles with an LY7 or LLT HFV6 engine that may leak coolant from the water-pump shaft seal and experience water-pump failure. GM notes that operation with a low coolant level contributes to the leak and that m… Severity: medium.
What is the 2013-2016 Buick Enclave Rear A/C Evaporator Can Corrode and Leak (PIT5335A)?
GM PIT5335A applies to 2013-2016 Buick Enclave vehicles whose air conditioning blows warm with a very low or empty refrigerant charge. When normal diagnostics do not find the leak, copper-bearing brush dust from the rear blower motor may have accelerated corrosion of the rear eva… Severity: low.
