Several GM vehicle models may feature two distinctively different-looking per-cylinder valve-cover-mounted ignition coils. This is due to a supplier difference and, according to GM, does not affect performance or serviceability.
General Motors issues a recall on certain 2018 GMC Savana and Chevy Express vehicles with certain combinations of front tire and gross vehicle weight option codes. The tire pressure monitoring system may be incorrectly calibrated, causing the TPMS warning light to illuminate when tire pressure reaches 37 psi, not 41 psi.
Owners of a 2008-2013 GMC Savana equipped with a 4L60E, 4L65E or 4L70E transmission may comment that the transmission makes a squawk or grunt type noise when shifting from 2nd to 3rd gear.
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