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Service bulletin 15521

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 id10247250
Published by NHTSA2023-12-18
Manufacturer's number15521
Manufacturer's date2015-12-01
NHTSA componentVEHICLE SPEED CONTROL; AIR BAGS; SEATS; EQUIPMENT

NHTSA's summary

In situations where your vehicle side doors will not open from INSIDE the vehicle due to low or no battery voltage, such as a discharged or disconnected battery, or if the vehicle is entered without the key fob or the fob is not working, the driver and passenger side doors can be opened from the inside of the vehicle by using the manual release levers located on the floor between the seats and the door openings.

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

Air bags, Equipment and accessories, Seats, Throttle and cruise control

Vehicles listed
CADILLAC CTS2011, 2012, 2013, 2014
CADILLAC ELR2014, 2015, 2016
CADILLAC XLR2004, 2005, 2006, 2007, 2008, 2009
CHEVROLET CORVETTE2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016

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

Recalls for the same vehicles and component
18V5950002018-09-07. SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER
20173422017-07-10. Airbag
17V4370002017-07-10. SEAT BELTS:PRETENSIONER; AIR BAGS:FRONTAL:SENSOR/CONTROL MODULE-INACTIVE; AIR BAGS:FRONTAL
20164392016-09-09. Airbag
16V6510002016-09-08. SEAT BELTS:PRETENSIONER; AIR BAGS:FRONTAL:SENSOR/CONTROL MODULE-INACTIVE; AIR BAGS:FRONTAL
14V5700002014-09-19. AIR BAGS
20144072014-09-18. Airbag
20143152014-07-29. Seats And Restraints
14V4460002014-07-23. SEATS
20142442014-06-20. Airbag

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
10-08-110-001L2025-02-11. Service bulletin. This service bulletin provides information on proper use of floor mats.
06-00-89-029V2024-05-16. Service bulletin. This service bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.
PI0572B2024-05-06. Service bulletin. Information on COAX Repair Kit Availability.
PI0488C2024-05-06. Service bulletin. Diagnostic Information for Transmission.
PI0476A2024-05-06. Service bulletin. Revised Installation Instructions for Accessory Windbreak.
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.
PIP5129B2024-04-22. Service bulletin. Engine Exchange Program for 2014 Model Year Has Ended.
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.
PIE0291A2024-04-08. Service bulletin. Engineering Information.