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Service bulletin PI1274

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 id10140354
Published by NHTSA2018-06-11
Manufacturer's numberPI1274
Manufacturer's date2014-07-07
NHTSA componentVISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW

NHTSA's summary

This PI provides information to update the BCM for a relay that can pulse rapidly causing a noise in the left fromt side of the instrument panel and poor performace of the rear window defogger.

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

Glass, wipers and mirrors, Heating and air conditioning

Vehicles listed
CHEVROLET SPARK2013, 2014
CHEVROLET SPARK EV2014 (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.

Other bulletins for the same vehicles and component
21-NA-0432025-02-12. Service bulletin. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
PI0754G2024-08-17. Service bulletin. This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal characteristic.
990139004E2024-02-12. Service bulletin. Air Conditioning Odor
PIT5099G2023-12-26. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
PIT5099A2023-12-11. Service bulletin. A/C Blows Warm Or Poor Performance.
PIC57432023-12-11. Service bulletin. A/C Performance Table.
PIC5715A2023-12-11. Service bulletin. AC Blows Warm Air Poor Performance.
13434C2023-12-11. Service bulletin. CSP-Air Conditioning System Inoperative or Cools Intermittently
13434A2023-12-11. Service bulletin. CSP-Air Conditioning System Inoperative or Cools Intermittently
990139004E2023-12-11. Service bulletin. Air Conditioning Odor