Owners of 2006-2011 Cadillac Escalades may complain about an oil leak shortly after a cold start when extremely low ambient temperatures are present. If an oil leak from the dipstick tube is noted, this is the result of a frozen PCV system and excessive crankcase pressure.
This bulletin applies to 2007-2012 Cadillac Escalade, Escalade ESV and EXT, 2007-2012 Chevy Avalanche, Silverado, Suburban and Tahoe, and 2007-2012 GMC Sierra, Yukon and Yukon SL vehicles with four wheel or all-wheel drive.
This bulletin applies to a number of GM vehicles including 2011-2013 Buick Regal and LaCrosse, 2010-2013 Cadillac SRX, 2010-2013 Chevy Camaro and Equinox, 2011-2013 Chevy Cruze and 2010-2013 GMC Terrain models.
Owners of 2010-2013 Cadillac SRX vehicles may comment that during brake application there is a snap or pop noise that can be heard and felt from the front of the vehicle. This can be duplicated while driving forward at around 30 mph to 35 mph.
Owners of various GM vehicles equipped with HFV6 engines (3.0L and 3.6L) may complain about an SES light. This may be accompanied by misfire codes or possible oil or coolant leaks.
Some owners of a 2004-2013 Cadillac CTS or SRX may complain about a SES light on with no drivability issues (gee, imagine a Caddy owner who complains). The technician may find DTC P2097 or P2099 set.
This bulletin applies to 2012-2014 Cadillac Escalade models (as well as 2010-2013 Chevy Avalanche, Silverado, Suburban and Tahoe; 2014 Chevy Silverado 2500/3500, 2012-2013 GMC Sierra and Yukon and 2014 GMC Sierra 2500/3500 and Yukon models). The MIL may be on with DTC P067C and/or P057D or a cruise and brake light operation service stability message with DTC C0161 and C0277 (check X205 connector).
Owners of 2009-2013 Cadillac Escalade vehicles equipped with a 6.0L or 6.2L engine may complain of a random bump, chuggle or “fishbite” sensation when crowding the throttle slightly with the TCC on while cruising at 35 to 60 mph. Generally, this is most apparent at 1,100 to 1,400 rpm but the rpm may vary slightly depending on axle ratio, operating conditions and road grade.
This TSB applies to 2011-2013 Cadillac Escalade, Chevy Avalanche, Silverado, Suburban and Tahoe, and GMC Sierra and Yukon vehicles equipped with 20-inch chrome clad wheels.
While performing diagnostics, a technician may notice DTC B2455 stored as a history code in the vehicle communication interface module (VCIM) when there is no issue with the microphone.
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