NHTSA ID Number: 10115135
Manufacturer Communication Number: PIT5398A
Summary
This Preliminary Information communication provides information to the technician about vehicles that may have the rear vision camera system displaying “Rear Park Assist Symbols Unavailable” and the steering grid lines displayed do not show. If the vehicle is in reverse, the rear vision camera will display “Rear Park Assist Symbols Unavailable” and does not have Regular Production Option Code UD5 or UD7 the radio must be updated using Service Programming System to correct this concern. Some vehicles may not show steering guide/grid lines displayed in the Rear Vision Camera display. Dealer should communicate to the customer that steering guide/grid lines are not available with this base radio Regular Production Option Code (IO3). Some vehicles while in reverse and the rear park assist system detects an object, the warning triangle symbol is displayed on the wrong side of the radio display. Engineering is aware of the issue and updated radio/tuner calibrations will be released shortly.
Condition/Concern
Condition 1: While the vehicle is in reverse, the rear vision camera will display “Rear Park Assist Symbols Unavailable”. It will be noticed that the truck is not even equipped with rear park assist system (RPO UD5 or UD7).
Condition 2: No steering guide/grid lines displayed in the Rear Vision Camera display.
Condition 3: While backing up in reverse and the rear park assist system detects an object, the warning triangle symbol is displayed on the wrong side of the radio / ICS display. Example, If an object is detected on the left side, the warning triangle will be displayed on the right side of the screen
Recommendation/Instructions
Correction 1: Reprogram the radio/tuner with the latest calibration currently available in TIS2WEB.
Correction 2: None. Steering guide/grid lines are not available with this base radio (RPO IO3).
Correction 3: Engineering is aware of the issue and updated radio/tuner calibrations will be released shortly
The steering guide/grid lines are not available with this radio (RPO IO3) combination.
Customer Information
For Condition 3, please communicate to the customer that we apologize for this inconvenience and that General Motors
is working on a solution for this concern. Once a solution is available, this PI will be updated with additional details – allowing dealership personnel to contact the customer to schedule a service appointment and repair the vehicle.
16 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| CHEVROLET | SILVERADO 1500 | 2014 |
| CHEVROLET | SILVERADO 2500 | 2015-2016 |
| CHEVROLET | SUBURBAN | 2015-2016 |
| CHEVROLET | TAHOE | 2015-2016 |
| GMC | SIERRA 1500 | 2014 |
| GMC | SIERRA 2500 | 2015-2016 |
| GMC | SIERRA DENALI | 2015-2016 |
| GMC | YUKON | 2015-2016 |
| GMC | YUKON XL | 2015-2016 |
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5398A
Date: Nov-2015
Reprogramming
GM Diagnostic/Programming (TIS2Web)
Approved J2534 Device with TIS2WEB can reprogram 1996 and later All GM Modules.
To obtain the latest electronic controller calibration information for your vehicle, go to https://tis2web.service.gm.com/tis2web and enter the vehicle's 17 character Vehicle Identification Number (VIN) and select 'Get CAL ID’.
You can then compare the latest part number with the actual number installed on the vehicle to determine if a reprogram is needed.
The Service Programming System (SPS) application is part of the TIS2Web system. To program an ECU, the SPS application must communicate with the vehicle control modules using the proper J2534 programming interface tool.
The Tech 2 supports model years 1996 and beyond. With the addition of the CAN Diagnostic Interface (CANdi) module, Tech 2 is fully backward compatible with current Tech 2 functionality and operates transparently when diagnosing non-CAN-equipped vehicles.
Servicing the next generation Global A vehicles will require the diagnostic software, GDS2, Global Diagnostic System 2 running on a local PC device while the MDI is connected to the vehicle. The GM MDI is the Global Diagnostic tool for future vehicles starting with Global A vehicles.
The GM MDI was introduced in the fall of 2007 for Pass-Thru programming and offers faster programming speed. It can be used to perform Pass-Thru programming on all vehicles built since 1996 and into the future. Click here to view a list of GDS supported vehicles.
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SEOCONTENT-START
Bulletin No.: PIT5398A
Date: Nov-2015
Subject: Rear Park Assist Symbols Unavailable Message / No Steering Guide Lines / Rear Park Assist Warning Triangle Displayed Incorrectly Models: 2014 Chevrolet Silverado 1500
2015 Chevrolet Silverado, Suburban, Tahoe
2014 GMC Sierra 1500
2015 GMC Sierra
With Base Radio (RPO IO3)
With Rear Vision Camera (RPO UVC) This PI was superseded to update the Condition and Recommendation sections. Please discard PIT5398.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI. Condition/Concern
Condition 1: Some owners may comment while the vehicle is in reverse, the rear vision camera will display “Rear Park Assist Symbols Unavailable”. It will be noticed that the truck is not even equipped with rear park assist system (RPO UD5 or UD7).
Condition 2: Some owners may comment there are no steering guide/grid lines displayed in the Rear Vision Camera display.
Condition 3: Some owners may comment while backing up in reverse and the rear park assist system detects an object, the warning triangle symbol is displayed on the wrong side of the radio / ICS display. Example, If an object is detected on the left side, the warning triangle will be displayed on the right side o the screen
Recommendation/Instructions
Correction 1: Reprogram the radio/tuner with the latest calibration currently available in TIS2WEB. Correction 2: None. Steering guide/grid lines are not available with this base radio (RPO IO3).
Correction 3: Engineering is aware of the issue and updated radio/tuner calibrations will be released shortly
.
The steering guide/grid lines are not available with this radio (RPO IO3) combination.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation
Description
Labor Time 2810335 Radio Reprogramming with SPS Use Published Labor Operation Time * This is a unique labor operation for bulletin use only. It will not be published in the Labor Time Guide. Customer Information
1 For Condition 3, please communicate to the customer that we apologize for this inconvenience and that General Motors is working on a solution for this concern. Once a solution is available, this PI will be updated with additional details – allowing dealership personnel to contact the customer to schedule a servic appointment and repair the vehicle.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. 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. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
2
SEOCONTENT-END
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