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TOPIC : Buick

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Common Sense with Wheel Nuts

Many vehicles are equipped with wheel nuts that feature a stainless steel cap/cladding, such as those used on 2012 and prior GM vehicles. When removing or installing wheel nuts with stainless steel caps, using a shallow socket may crack the cap causing corrosion underneath the cap and nut.

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Avoid Air in Power Steering

This bulletin applies to 2008-2013 Buick Enclave, 2009-2013 Chevy Traverse, 2007-2013 GMC Acadia and 2007-2010 Saturn Outlook vehicles that require replacement of a power steering cooler. This bulletin outlines the procedure to prevent introducing a large amount of air into the system during service.

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Air Leak Doesn’t Mean Trouble

Input housing and shaft assemblies from transmissions have been incorrectly considered defective when air bubbles are observed coming from between the input shaft and the housing during an air check.

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False Buick MIL

Owners of 2014 Buick Enclave FWD vehicles may comment about the MIL on. Technicians may find DTC P069E set in memory.

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Pop Goes the Rear Mainseal

Some owners of 2011 Buick Regal vehicles equipped with a 2.4L engine may complain of an engine oil leak that appeared in extremely cold ambient temperatures (generally 0 degrees Fahrenheit or colder). They may also comment that they heard a single “pop” noise immediately before the oil leak started.

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Buick Rubbed the Wrong Way

This bulletin applies to 2013 Buick Enclave vehicles. The SES light may be on with misfires and any of the following injector-related codes:

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Buick Battery Control

This bulletin applies to 2012-2013 Buick LaCrosse vehicles. There may be an MIL on, battery Indicator or Service Charging System message on, with any combination of DTCs P1EAB, P1B33, P1B34, P1B35, P1B36, P1B37, P1B38 or P1B39.

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Buick Christmas Tree Lights

This bulletin applies to 2008-2011 Buick Enclave models. During normal diagnostics and/or repair, technicians may find that the ABS light, Traction Control and/or Stabilitrak indicators may be on with no DTCs displayed in the EBCM. This condition may be due to the EBCM requiring a full power-down to reset the diagnostic monitoring after a Clear All DTCs command has been performed with the Tech2.

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Coolant in Spark Plug Tube

This bulletin applies to GM vehicles equipped with HFV6 engines (3.0L and 3.6L LF1, LFW, LLT and LFX). Affected vehicles include 2010-2014 Buick Enclave and LaCrosse, Cadillac ATS, CTS, SRX and XTS, Chevy Camaro, Caprice, Equinox, Impala and Traverse and GMC Acadia and Terrain.

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Trans Woes

This bulletin applies to 2011 Buick Regal models equipped with the 6T40/45 automatic transmission, built on or before Jan. 15, 2011.

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