Yukon

Diagnostic Tip – Diesel Exhaust Fluid System Contamination – 2010-2023 Chevrolet & GMC

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Chevrolet GMC Cadillac

NHTSA ID Number: 10222781 Manufacturer Communication Number: 19-NA-237 Summary This informational bulletin explains how to identify possible DEF contamination.   Condition Some customers may comment on one or more of the following conditions: Exhaust fluid quality poor message on the Driver Information Center (DIC). Diesel exhaust fluid warning lamp on. Other exhaust fluid quality related concerns.   … Read more

Service Update 28770 4WD IPS Drift DTC C0398 – 4HI Lock-Up – 2015-2016 Cadillac Chevrolet GMC

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2016 Chevrolet Suburban

NHTSA ID Number: 10130547 Manufacturer Communication Number: GCUS-3-804   Summary 28770 – SUB A “Service 4WD” message may be displayed on the Driver Information Center and DTC C0398 may be set. Concurrently, the vehicle is permanently locked in 4HI and cannot be shifted shift out of it while the code is present. If the code is cleared, … Read more

Normal Characteristic – No Remote Detected / Place Key in Transmitter Pocket / Press Brake To Restart DIC Messages – 2015 Cadillac Chevrolet GMC

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2015 Chevrolet Suburban

NHTSA ID Number: 10125987 Manufacturer Communication Number: PIT5300 Summary This Preliminary Information communication provides information to the technician about vehicle that may have a “No Remote Detected” message will display on the DIC and the engine will not crank or while trying to shut the vehicle off, a “No Remote Detected Press Brake To Restart” message will … Read more

Poor A/C Performance During High Ambient Temperatures (New A/C Refrigerant Charge Amount) – 2015 Cadillac Chevrolet GMC

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2015 Chevrolet Tahoe

NHTSA ID Number: 10112242 Manufacturer Communication Number: PIT5292B Summary This Preliminary Information communication provides information to the technician about vehicles that may have an air condition that has poor performance during high ambient temperatures. Technician will need to check the refrigerant charge and record the recovered amount on the repair order. Technician should recharge the system if … Read more

Whistle Noise From Inside Vehicle – 2014-2019 Cadillac, Chevrolet & GMC

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2019 Chevrolet Suburban

NHTSA ID Number: 10151830 Manufacturer Communication Number: PIT5272B Summary This Preliminary Information communication provides information to the technician about vehicles that may have a whistle noise in the vehicle from the driver or passenger side. Technician will need to inspect for voids in the body sealer on the left or right side A-pillar. Technician should also inspect … Read more