NHTSA ID Number: 10108617
Manufacturer Communication Number: 15-NA-051
TSB/Document Date: 2017-07-18
Summary
This technical bulletin provides a procedure to Install a low profile fuel pump relay to correct a customer concern on a no-start or stalling due to the rear seat bottom coming into contact with the rear electrical center (REC) cover.
File in Section:
Bulletin No.:
Service Bulletin
Date:
15-NA-051
August, 2016
TECHNICAL
Subject:
No Start/Stall - Seat Bottom Contacting Rear Electrical Center (REC)
Brand:
Model:
Model Year:
VIN:
from
to
Lucerne
2008
2011
DTS
2008
2011
from
Engine:
All
All
to
Involved Region or Country
North America and N.A. Export Regions
Condition
Some customers may comment on a no-start or stalling.
Cause
The rear seat bottom may come into contact with the rear electrical center (REC) cover.
The contact/interface results in varying amounts of deflection of the fuel pump relay
(FPR). The movement of the FPR causes potential wear of the male terminals on
the FPR.
Correction
•
•
Install a low profile fuel pump relay (DTS and
Lucerne).
Remove material from the rear seat bottom frame,
driver side mounting brackets (Lucerne Only).
Service Procedure
1. Open the rear door and remove the rear seat
bottom cushion.
2. Disconnect the battery.
3. Remove the fuel pump relay from the rear body
fuse block and discard. Refer to Relay
Replacement (within an Electrical Center).
4. Install the new low profile fuel pump relay to the
rear body fuse block and install the cover.
5. Connect the battery.
Copyright 2016 General Motors
LLC. All Rights Reserved.
Page 2
August, 2016
Bulletin No.: 15-NA-051
4294546
Bulletin No.: 15-NA-051
August, 2016
Page 3
4294548
6. For Lucerne only, with the rear seat cushion on a
bench, measure 5 mm (0.197 in) from each edge of
the right side seat mount bracket and mark with a
paint marker as shown (1).
Page 4
August, 2016
Bulletin No.: 15-NA-051
4294550
7. For Lucerne only, using a cut off wheel or
equivalent, carefully cut each side of the bracket as
shown (1). Check for any rough edges and file if
necessary.
8. Install the rear seat cushion and close door.
Parts Information
Description
Part Number
88953222
Warranty Information
Labor Operation
Description
Labor Time
5480178*
(Lucerne)
Replace Fuel
Pump Relay, and
Cut Rear Seat
Bracket
0.4 hr
5430510
(DTS)
Relay
Replacement
Use Published
Labor
Operation Time
*This is a unique Labor Operation for Bulletin use only.
Version
2
Modified
July 18, 2016 – Added Cadillac DTS.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these
technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper
service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a
job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your
vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the
information.
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TSB/Document ID: 15-NA-051
Replacement Service Bulletin Number:
MFR Communication Date: 2017-07-18
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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