Sierra

Coolant Leak, Coolant Consumption and/or Low Coolant Message Being Displayed On the Driver Information Center (DIC) – 2017-2023 Chevrolet Silverado & GMC Sierra

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2020 Chevrolet Silverado

NHTSA ID Number: 10222656 Manufacturer Communication Number: 18-NA-098 Summary This informational bulletin provides information for the technicians on where to look on the Duramax engine for coolant leaks.   Condition Some customers may comment on a coolant leak, coolant consumption and/or low coolant message being displayed on the driver information center (DIC).   Correction Use the illustrations … Read more

Diesel Exhaust System Configuration and DPF Soot Accumulation, Malfunction Indicator Lamp (MIL) Illuminated – DTC P2463 Set – 2017-2023 Chevrolet Silverado & GMC Sierra

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2020 Chevrolet Silverado

NHTSA ID Number: 10222654 Manufacturer Communication Number: 17-NA-374 Summary This informational bulletin advises the technician of how the Soot information has changed from grams to percentage.   Information The following is a list of topics below that are included in the bulletin explaining DPF Soot Accumulation: Reading The Soot Level In % Instead Of Grams Service Regeneration … Read more

Higher Than Expected Oil Consumption – 2017-2023 Chevrolet Silverado & GMC Sierra

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2020 Chevrolet Silverado

NHTSA ID Number: 10222652 Manufacturer Communication Number: 16-NA-376 Summary This informational bulletin provides information on higher than expected oil consumption.   Information on Engine Oil Consumption Guidelines for the 6.6L Duramax Diesel Engine All engines require oil to lubricate and protect the load bearing and internal moving parts from wear including cylinder walls, pistons and piston rings. … Read more

Information On Hitch Ball Movement on Gooseneck Drop-in Hitch – 2016-2020 Chevrolet Silverado & GMC Sierra

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2020 Chevrolet Silverado

NHTSA ID Number: 10163886 Manufacturer Communication Number: 17NA350 Summary This informational bulletin provides explanation of a normal condition of a loose fitting ball receiver in the gooseneck.   14 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 1500 2016-2018 CHEVROLET SILVERADO 2500 2019-2020 CHEVROLET SILVERADO 3500 2019-2020 GMC SIERRA 1500 2016-2018 GMC SIERRA 2500 2019-2020 GMC SIERRA … Read more

Shake and/or Shudder During Light Throttle Acceleration Between 25 and 80 MPH (40 and 128 KM/H) at Steady Speed – 2015-2019 Cadillac Chevrolet GMC

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2019 Chevrolet Corvette

NHTSA ID Number: 10163890 Manufacturer Communication Number: 18NA355 Summary This technical bulletin provides information for new transmission oil to use and a procedure for exchanging the old fluid and adding the new fluid to correct a shake/shudder during light throttle acceleration condition.   47 Affected Products Vehicles MAKE MODEL YEAR CADILLAC ATS 2016-2019 CADILLAC CT6 2016-2019 CADILLAC … Read more