Buick TSB #18NA026

2018 Buick Envision

TSB Document:

Affected Component: POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES

Summary
This technical bulletin provides a procedure to install an oil cooler line fitting seal, including applying medium strength threadlocker (blue) to the retaining bolt to stop transmission fluid leaking from the transmission oil cooler line retaining bolt passage.

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Date Published
APR 17, 2018
NHTSA TSB #
10137576
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