Service Engine Soon Lamp Illuminated and/or Service Power Brake Assist Message Displayed, with DTCs P0557 or P0558 Stored – 2017-2020 Buick Cadillac Chevrolet GMC Holden

2020 Cadillac XT6

NHTSA ID Number: 10178266 Manufacturer Communication Number: 20NA071   Summary This technical bulletin provides repair information to correct a customer concern of the Service Engine Soon Lamp illuminated and/or Service Power Brake Assist message displayed, with DTCs P0557 or P0558 Stored.   17 Affected Products Vehicles MAKE MODEL YEAR BUICK ENCLAVE 2018-2020 CADILLAC XT5 2017-2020 CADILLAC XT6 … Read more

Adaptive Cruise Control/ Lane Keep Assist Unavailable – 2016-2020 Buick Cadillac Chevrolet

2020 Buick LaCrosse

NHTSA ID Number: 10201305 Manufacturer Communication Number: PIC6265F   Summary This Preliminary information communicates that a vehicle may exhibit a Adaptive Cruise Control Unavailable and/or Lane Keep Assist Unavailable message. The technician may attempt to program the Active Safety Control Module (ASCM) and encounter a code E4399. The technician is advised if he encounters this concern to zero … Read more

SES Lamp ON With DTC P0324 – Engine Squeak Or Belt Noise – 2016-2020 Buick Cadillac Chevrolet GMC

2020 Chevrolet Blazer

NHTSA ID Number: 10178363 Manufacturer Communication Number: PIP5545C   Summary This Preliminary information communicates a possible noise from the water pump causing a DTC and the diagnostics for the repair.   41 Affected Products Vehicles MAKE MODEL YEAR BUICK LACROSSE 2017-2019 BUICK REGAL 2018-2020 CADILLAC ATS 2016-2019 CADILLAC CT6 2016-2020 CADILLAC CTS 2016-2019 CADILLAC XT5 2017-2020 CADILLAC … Read more

Diagnostic Tips For Direct Injected Engines Hard Start Cold – 2008-2020 Buick Cadillac Chevrolet GMC Saturn

2020 Chevrolet Camaro

NHTSA ID Number: 10178389 Manufacturer Communication Number: PIP5180C   Summary This Preliminary Information communication provides information to the technician about vehicles that have hard start, extended crank, or black smoke from the exhaust when starting. Technician will need to perform fuel quality test, spark test, and a compression test. Technician should also install a vacuum gauge prior … Read more

Passenger Side HVAC Blows Warm After Performing Bulletin 17-NA-293 – 2016-2017 Buick Envision

2017 Buick Envision

NHTSA ID Number: 10178393 Manufacturer Communication Number: PIT5760   Summary This preliminary information discusses the possibility of connectors being swapped during service and causing incorrect air delivery from the right side HVAC vents.   2 Affected Products Vehicle MAKE MODEL YEAR BUICK ENVISION 2016-2017     SEOCONTENT-START Bulletin No.: PIT5760 Published date: 07/29/2020 Preliminary Information PIT5760 Passenger … Read more