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Service bulletin PIC-5734-B

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 id10051943
Published by NHTSA2013-04-22
Manufacturer's numberPIC-5734-B
Manufacturer's date2013-02-01
NHTSA componentPARKING BRAKE:DRIVELINE:HYDRAULIC; SERVICE BRAKES, HYDRAULIC

NHTSA's summary

CHEVROLET: WHILE AT STOP OR SITTING, PULSATION IS FELT WITH A SLIGHT DEPRESSING OF BRAKE PEDAL AND A DRUMMING/RINGING NOISE IS NOTICEABLE DURING LOW SPEED EV DRIVING OR WHILE IN PARK OR HEARD WHEN VEHICLE IS TURNED OFF. MODEL 2011-2013 VOLT. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Brakes, Parking brake

Vehicles listed
CHEVROLET VOLT2011, 2012, 2013

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
122662018-05-21. Service bulletin. 12266 - Service Update. During vehicle startup, the Electric Park Brake telltale and the Service Electric Parking Brake telltale may illuminate in error. Dealers are to reprogram the Electronic Parking Bracke Control Module.
PI1410B2018-05-21. Service bulletin. This preliminary informational bulletin provides information regarding the normal characteristic of instrument panel red brake light intermittently comes on.
99-04-20-002I2017-08-15. Service bulletin. This informational bulletin explains a normal condition for what and how the drive line can clunk.
PIC5734B2017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have a drumming/ ringing like noise after depressing the brake pedal or a pulsation felt through the brake pedal while sitting still with your foot slightly depressing the brake pedal. Technician will need to reprogram the Electronic Brake Control Module with the latest calibration in Tis-2-Web.
PI0796A2016-06-13. Service bulletin. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB-122662016-04-26. Service bulletin. SUMMARY TO BE PROVIDED ON A FUTURE DATE.