Information on Engine Low Oil Pressure Indicator on the Driver Information Center (DIC) – DTC P0521 Set – 2019-2020 Chevrolet GMC

2019 Chevrolet Suburban

NHTSA ID Number: 10198859 Manufacturer Communication Number: 20NA161   Summary This informational bulletin advises the technician to check for a possible stuck oil pressure relief valve.     8 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET 3500 2019 CHEVROLET EXPRESS 2019-2020 CHEVROLET SILVERADO 2500 2019 CHEVROLET SUBURBAN 2019 GMC SAVANA 2019-2020 GMC SIERRA 2500 2019   Condition …

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MIL illuminated with DTC P0521 – 2020-2021 Buick Encore GX & Chevrolet Trailblazer

2021 Chevrolet Trailblazer

NHTSA ID Number: 10206744 Manufacturer Communication Number: PIP5826B   Summary This Preliminary information communicates to the dealers information related to isolating a potential engine wiring harness issue causing a MIL on with P0521.     4 Affected Products Vehicles MAKE MODEL YEAR BUICK ENCORE GX 2020-2021 CHEVROLET TRAILBLAZER 2020-2021   Condition Some customers may comment that the …

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Engine Wire Harness Chafing / IPC Gauges Sweep / IPC Warning Message / SES/Check Engine/MIL / No Start / No Crank / Runs Rough / Stalls / Reduced Engine Power / Various DTCs – 2019-2021 Cadillac Chevrolet GMC

2020 Chevrolet Silverado 1500

NHTSA ID Number: 10224856 Manufacturer Communication Number: 21-NA-149 Summary This technical bulletin provides repair information to correct a customer concern of Engine Wire Harness Chafing.   Condition 1 This Condition pertains to vehicles equipped with engine 2.7L, L3B only. Some customers may comment on any of the following concerns: – SES MIL – No Start – No …

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Malfunction Indicator Lamp (MIL) Illuminated – DTCs P0521 and/or P06DD Set – 2020 Chevrolet Corvette

2020 Chevrolet Corvette

NHTSA ID Number: 10183195 Manufacturer Communication Number: 20NA179 Summary This service bulletin provides a service procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated – DTCs P0521 and/or P06DD Set.   Parts Information Causal Part Description Part Number Qty X RETAINER, O/ PMP FLOW CONT SOL VLV Request WPC857** 1 N/A BOLT, RR …

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6.0L L96 Low Oil Pressure And/Or P0521 – 2019 Chevrolet & GMC

2019 Chevrolet Silverado

NHTSA ID Number: 10163661 Manufacturer Communication Number: PIP5630A Summary This Preliminary information communicates A vehicle may have a concern of no oil pressure and/or P0521 set. the relief valve in the pump is sticking or the number 1 main bearing is damaged. Drop oil pan and confirm #1 main is spun or not.  If bearings are OK Then …

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