Buick Regal: Symptoms - Cellular Communication
Note: The Following Steps Must Be Completed Before Using The Symptom
Table.
1. Perform The Diagnostic System Check - Vehicle Before Using The Symptom
Tables In Order To
Verify That All Of The Following Are True:
- There Are No Dtcs Set.
- The Control Modules Can Communicate Via The Serial Data Link.
2. Review The System Operation In Order To Familiarize Yourself With The
System Functions. Refer To Onstar Description And Operation (ue1 With Iob/io6) ,
Onstar Description And Operation (ui3) , Or Onstar Description And Operation
(ue1 Without Iob/io6).
Visual/physical Inspection
- Inspect For Aftermarket Devices Which Could Affect The Operation Of The
Radio/audio System.
- Inspect For Easily Accessible Or Visible System Components For Obvious
Damage Or Conditions
Which Could Cause The Symptom.
Intermittent
Faulty Electrical Connections Or Wiring May Be The Cause Of Intermittent
Conditions. Refer To Testing For Intermittent Conditions And Poor Connections.
Symptom List
Refer To The Applicable Procedure To Diagnose The Symptom:
- Bluetooth Malfunction (with IO5/IO6)
- Bluetooth Malfunction (without IO5/IO6)
- No Global Positioning System (GPS) Reception (without IO5/IO6)
- No Global Positioning System (GPS) Reception (IO5/IO6 without UE1)
- No Global Positioning System (GPS) Reception (IO5/IO6 with UE1)
- OnStar Microphone Malfunction (IO5/IO6/IOB)
- OnStar Microphone Malfunction (IOR/IOU/IOT/IOS)
- OnStar Audio Malfunction
- OnStar Button LED Malfunction
- OnStar Call Center Remote Function Requests Malfunction
- OnStar Button Malfunction
- Unable to Contact OnStar Call Center
- OnStar Voice Recognition Malfunction
- OnStar Steering Wheel Control Functions Malfunction
Symptoms - Entertainment
IMPORTANT: The following steps must be completed before using the
symptom table.
1. Perform the Diagnostic System Check - Vehicle before using the Symptom
Tables in order to
verify that all of the following are true:
- There are no DTCs set.
- The control modules can communicate via the serial data link.
2. Review the system operation in order to familiarize yourself with the
system functions. Refer to Radio/Audio System Description and Operation (IO6) ,
Radio/Audio System Description and Operation (IOB) , or Radio/Audio System
Description and Operation (IOS/IOT/IOU).
Visual/Physical Inspection
- Inspect for aftermarket devices which could affect the operation of the
Radio/Audio System. Refer to Checking Aftermarket Accessories.
- Inspect for easily accessible or visible system components for obvious
damage or conditions
which could cause the symptom.
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent
conditions. Refer to Testing for Intermittent Conditions and Poor Connections.
Symptom List
Refer to the applicable procedure to diagnose the symptom:
Refer to the applicable procedure to diagnose the symptom:
- Application Malfunction
- Auxiliary Audio Input Malfunction (IO5/IO6), Auxiliary Audio Input
Malfunction (IOB), or
Auxiliary Audio Input Malfunction (IOR/IOS/IOT)
- Bluetooth Malfunction (with IO5/IO6) or Bluetooth Malfunction (without
IO5/IO6)
- Digital Radio Poor or No Reception
- No Global Positioning System (GPS) Reception (without IO5/IO6), No
Global Positioning
- System (GPS) Reception (IO5/IO6 without UE1)No Global Positioning System
(GPS)
Reception (IO5/IO6 with UE1)
- Radio Controls Malfunction (IOB)
- Radio Information Display Malfunction (IOB), Radio Information Display
Malfunction
(IO5/IO6) or Radio Information Display Malfunction (IOR/IOS/IOT)
- Radio Poor Reception (IOB), Radio Poor Reception (IO6)Radio Poor
Reception
(IOR/IOS/IOT)
- Speaker Malfunction (UQ3 without NKC), Speaker Malfunction (UQ3 with
NKC)Speaker
- Malfunction (UQA with IO5/IO6)Speaker Malfunction (UQA without IO5/IO6)
Voice Recognition Malfunction (UE1) or Voice Recognition Malfunction
(without UE1)
READ NEXT:
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Refe
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Refe
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Refe
SEE MORE:
Removal Procedure
WARNING: Brake Dust Warning
WARNING: Brake Fluid Irritant Warning
1. Raise and support the vehicle.
2. Remove the tire and wheel assembly.
3.
Brake Pipe Fitting(1) - Disconnect.
4. Cap the brake pipe fitting to prevent brake fluid loss and contamination.
5.
Brake Hose Retainer
If the vehicle is involved in a
collision and it is damaged, have the
damage repaired by a qualified
technician using the proper
equipment and quality replacement
parts. Poorly performed collision
repairs diminish the vehicle resale
value, and safety performance can
be compromised in subsequent
coll