Displaying 1 - 10 of 109

TOPIC : GM

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Coated Cam Bearings

GM now recommends any cam bearing replacement in a Gen IV V8 engine (LS series) to use coated cam bearings in all five positions.

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No OnStar

This bulletin applies to 2006-2014 GM passenger cars and trucks equipped with OnStar Gen 7, Gen 8, Gen 9 or FCP1. The OnStar system may not power up, with no LED illumination and/or no response from the OnStar button assembly. This issue may be accompanied by no communication with the scan tool as well.

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GM: Just Replace It

This bulletin applies to 2013 and prior GM passenger cars and trucks equipped with drum hat park brakes.

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Lifetime Axle Fluid?

This bulletin applies to 2006-2009 Hummer H3 and 2003-2009 Hummer H2 vehicles. While some owners of these vehicles may request a fluid change for the rear axles, the service information and owner’s manual do not show a service interval for the rear axles with or without G80 locking differential.

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Tow Can Mess Up GPS

This bulletin applies to all 2011-2012 GM passenger cars and light-duty trucks. In the event that an OnStar module had previously acquired a GPS signal with calibrated dead reckoning and is transported or towed at least 59 miles with the ignition off, the module may not re-acquire a current GPS location.

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Pay Attention to Wheel Nuts

When servicing 2012 and earlier GM vehicles that feature stainless steel-clad wheel nuts, using a shallow socket wrench can easily deform or crack that stainless steel cover.

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Easy Vette Fix

According to GM, a “very small number” of 2013 Corvettes may exhibit an abnormal exhaust noise, due to an improperly torqued exhaust joint after the catalytic converter.

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Ignore the DTC

This bulletin applies to 2011-2014 GM vehicles equipped with OnStar. While diagnosing a vehicle with an OnStar concern, technicians may find DTC B101D-37 in the OnStar module (VCIM) while checking for codes.

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BPI Named a Supplier of the Year by GM

For the second time, Brake Parts Inc (BPI) was named a 2017 GM Supplier of the Year by General Motors during its 26th annual Supplier of the Year awards ceremony held recently in Orlando, Fla. 

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Chevy Rattle

This bulletin applies to 2009-2010 Chevy HHR vehicles. According to GM, “in rare instances” a technician may comment that they hear a short, sharp rattle noise from the front of the engine at start-up. Codes P0011, P0014, P0016 or P0017 may also be set.

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