DTC C0544 and/or U0415 Set and Will Not Clear – 2012-2013 Buick Chevrolet GMC

2013 Chevrolet Equinox

NHTSA ID Number: 10126211 Manufacturer Communication Number: PI0800D   Summary This preliminary bulletin provides a procedure to reprogram the power steering module to correct the customers concern of the MIL on and a drop in power steering assist.     Condition/Concern Malfunction Indicator Lamp (MIL) on and a drop in power steering assistance. DTC C0544 with fault … Read more

Engine Compartment Whistle Noise or Chirp Noise – 2013-2015 Buick Cadillac Chevrolet

2015 Chevrolet Cruze

NHTSA ID Number: 10155077 Manufacturer Communication Number: PI1297C   Summary This preliminary informational bulletin provides diagnostic tips that may be helpful in correcting a customer concern about a whistle noise heard from the engine area after the vehicle has warmed up, or for up to 10 seconds after the engine is shut off.     Condition/Concern Whistle … Read more

Cooling System Contaminated With Engine Oil – 2010-2021 Buick Cadillac Chevrolet GMC

2020 Buick Enclave

NHTSA ID Number: 10198879 Manufacturer Communication Number: 21NA108   Summary This service bulletin provides diagnostic information for the technician regarding a customer concern of engine overheating, cooling system contaminated with engine oil.     Condition Engine is overheating. One or more of the following conditions: Oil in the coolant overflow reservoir Coolant discharging from the coolant reservoir … Read more

Information on Engine Oil Consumption Guidelines – GM Passenger Cars & Gasoline-Powered Light Duty Trucks

General Motors

NHTSA ID Number: 10222734 Manufacturer Communication Number: 01-06-01-011M Summary This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.   All engines require oil to lubricate and protect the load bearing and internal moving parts from wear including cylinder walls, pistons and piston rings. When a piston moves down its cylinder, a … Read more

Tick Noise And/or Misfires On AFM Cylinders 1 4 6 And/or 7 – 2005-2015 Buick Cadillac Chevrolet GMC Pontiac Saab

2015 Chevrolet Camaro

NHTSA ID Number: 10113935 Manufacturer Communication Number: PIP4568S   Summary This Preliminary Information communication provides information to the technician that some vehicles may have a Service Engine Soon lamp, engine misfire on cylinder 1, 4, 6, or 7 and/or tick noise. Technician will follow service information diagnosis first. If service information diagnosis does not isolate the cause … Read more