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

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

Duramax Intermittent High Idle Or Elevated Idle Descriptions – 2010-2016 Chevrolet & GMC

2016 Chevrolet Silverado 3500

NHTSA ID Number: 10111705 Manufacturer Communication Number: PIP4912E   Summary This Preliminary Information communication provides information to the technician on vehicles that may have an intermittent high idle. If a technician has duplicated, or the customer description aligns with the speeds mentioned in the idle speed description tables, the idle speed should be considered a normal characteristic … Read more

Special Coverage Adjustment 16188 – Brake Lamp Malfunction – 2004-2012 Chevrolet Pontiac Saturn

2012 Chevrolet Malibu

NHTSA ID Number: 10126014 Manufacturer Communication Number: GCUS-9-3664 Summary 16188 Special Coverage. Some vehicles may have a condition where increased resistance in the body control module (BCM) connection system can result in voltage fluctuations or intermittency in the brake apply sensor (BAS) circuit that can cause brake lamp malfunction. Specifically, the brake lamps may either illuminate without … Read more

Intermittent Map Disc Read Error – 2012 Buick Chevrolet GMC

2012 Buick Enclave

NHTSA ID Number: 10111822 Manufacturer Communication Number: PIT5157B Summary This Preliminary Information communication provides information to the technician about vehicles that may have intermittent map disc read error when using the navigation radio. Technician will need to inspect the Map Disc for scratches. If the disc has a ring on the outside area the disc and radio … Read more

Power Liftgate Does Not Stay Fully Open Or Drifts Down A Few Inches – 2010-2013 Chevrolet Equinox & GMC Terrain

2013 Chevrolet Equinox

NHTSA ID Number: 10112936 Manufacturer Communication Number: PIT5072D Summary This Preliminary Information communication provides information to the technician about vehicles that after opening the power liftgate, it will not stay in the full open position and may drift down a few inches before coming to a rest. Technician will ensure the vehicle does not have the incorrect … Read more