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Service bulletin PI1374

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10126226
Published by NHTSA2017-12-22
Manufacturer's numberPI1374
Manufacturer's date2014-12-09
NHTSA componentEQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

NHTSA's summary

This preliminary information provides a procedure to update the radio to correct the cutomers concern of no XM, radio locks up, slow response time, vertical lines between the clock and temp guage, and poor FM reception.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Equipment and accessories

Vehicles listed
BUICK LACROSSE2015
BUICK REGAL2015
CADILLAC ATS2015
CADILLAC CTS2015
CADILLAC ELR2015
CADILLAC SRX2015
CADILLAC XTS2015
CHEVROLET CORVETTE2015
CHEVROLET IMPALA2015
CHEVROLET SILVERADO 15002015 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002015 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002015 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 15002015 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002015 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002015 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20142162014-06-06. Accessories

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
20-NA-1322024-04-23. Service bulletin. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
17-NA-0522024-04-23. Service bulletin. This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.
PIC65412024-04-15. Service bulletin. This Preliminary information communicates to the technicians some additional diagnostic tips if they encounter a condition of a dead battery/parasitic drain.
20-NA-1322024-04-05. Service bulletin. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
PIT5401E2024-04-01. Service bulletin. Radio Inoperative with No Communication and DTC U0184
PIT5387B2024-04-01. Service bulletin. Radio HVAC IPC Blank Out When Operating A Snow Plow.
PIT5378C2024-04-01. Service bulletin. Radio Display May Momentarily Flicker When Vehicle Is First Started.
PIT53622024-04-01. Service bulletin. OnStar And XM Antenna Malfunction Setting.
PIT53592024-04-01. Service bulletin. Radio Back Lighting Stays On After Key Off.
PIT53582024-04-01. Service bulletin. Repetitive Popping Noise From All Speakers.