16NA061

File in Section:
Bulletin No.:
Service Bulletin
Date:
16-NA-061
December, 2017
TECHNICAL
Subject:
Service Tire Monitor System/ Tire Pressures Display Dashes/ RKE Short Range/ No
Fob Detected Message
Attention: This Bulletin also applies to any of the models that may be Export from North America
vehicles.
Brand:
Model:
Cadillac
Model Year:
VIN:
from
to
ATS,
CTS, XTS
2014
2018
Cadillac
Escalade
Models
2015
2018
Chevrolet
Suburban,
Tahoe
2015
2018
GMC
Yukon
Models
2015
2018
from
Engine:
Transmission:
to
Condition
Some customers may comment on any of the following issues:
• One or more tire pressures display dashes
• Service Tire Monitor System Message
• Key fob poor range or inoperative (lock, unlock, remote start, etc.)
• “No Fob Detected” message or Passive entry system inoperative (if equipped)
Cause
The technician may find any of the following DTCs set in the BCM associated with the
vehicle tire pressure sensors: C0750, C0755, C0760 and/or C0765.
These concerns could be caused by a poor OR disconnected antenna connection for the
Remote Control Door Lock Receiver (RCDLR). The RCDLR antenna system consists of
the following four components:
Copyright 2017 General Motors LLC. All Rights Reserved.
Page 2
December, 2017
Bulletin No.: 16-NA-061
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4421592
1.
2.
3.
4.
RCDLR
Coax cable
Antenna Amplifier Module
Antenna (located in right rear glass)
Correction
Before any components are replaced for the conditions
listed above, please review the following information
and reconnect any disconnects and re-evaluate the
vehicle.
There are 3 locations that the RCDLR antenna system
can become disconnected:
1. Antenna Amplifier Module (3) disconnected from
antenna at the right rear glass (4)
2. Coax cable (2) disconnected at the Antenna
Amplifier Module (3)
3. Coax cable (2) disconnected at the RCDLR (1)
The closer the disconnect is to the RCDLR, the greater
number of symptoms will be noticed.
Bulletin No.: 16-NA-061
December, 2017
Page 3
Examples:
1. Antenna Amplifier Module disconnected from the
Antenna at right rear glass (4) - There may be little
to no noticeable issues, may receive a complaint
the RKE range is a little shorter than a like vehicle.
2. Coax cable disconnected at the Antenna Amplifier
Module - The RCDLR may have intermittent issues
receiving signals from the TPM sensors that are
farthest from the RCDLR (LF, LR, RF tires). The
DIC may display Service Tire Monitor System
message and dashes for these tire pressures. In
most cases, the signal from the right rear tire
sensor, which is the closest to the RCDLR, will not
have any issues. The RKE will have a shorter
range.
3. Coax Cable disconnected at the RCDLR - The
RCDLR may not receive any TPM sensor signals.
The Service Tire Monitor System message and the
tire pressures will show dashes in the DIC. The
RKE may work when the fob is inside the vehicle or
immediately outside the vehicle. May have Passive
entry/start issues like No Fob Detected message or
Passive entry inoperative. If the fob is put into the
fob pocket the vehicle will start.
After any repair, perform a Tire Pressure Learn.
Warranty Information
For wiring repairs covered under warranty, please refer
to latest version of Bulletin 10-00-89-005 for warranty
information on wire/connector repairs.
Version
2
Modified
December 19, 2017 – Added the 2017-2018 Model Years.
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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