NHTSA ID Number: 11027694
Manufacturer Communication Number: PIT5993F
TSB/Document Date: 2026-01-19
Summary
This Preliminary information communicates an issue with high resistance in the glass breakage loop that could cause a dead battery or unwanted theft alarm. Dealers are to inspect the glass breakage loop.
Bulletin No.: PIT5993F
Service Bulletin
Date: January, 2026
PRELIMINARY INFORMATION
Subject:
Brand:
No Crank Due To Dead Battery / Battery Draw / Unwanted Alarm
Model:
Model Year:
from
VIN:
to
from
Engine:
to
Escalade
2021 - 2026
All
All
All
All
Escalade
ESV
2021 - 2026
All
All
All
All
Suburban
2021 - 2026
All
All
All
All
Tahoe
2021 - 2026
All
All
All
All
Yukon
2021 - 2026
All
All
All
All
Yukon XL
2021 - 2026
All
All
All
All
Involved Region or Country
North America
Additional Options (RPO)
Theft-deterrent alarm system RPO UTT Or UTR
Condition
Some customers may comment on a low or dead battery, no crank due to a dead battery
or unwanted alarm.
Cause
These concerns could be caused by high resistance in the glass breakage loop, which is
shown below with a dotted red line. The glass breakage loop consists of the rear window
defogger grid and each rear quarter glass, which are all connected in series. Normally,
the complete glass breakage loop should have less than 20 ohms of resistance to
ground. If there is high resistance or a break at any place in this series circuit, it could
cause the condition.
Note: In some cases, the battery draw can only be duplicated if the vehicle is completely
closed up (all doors and hood latches tripped) and the vehicle is locked, but in other cases the vehicle does not need to be closed and locked up.
Copyright 2026 General Motors
. All Rights Reserved.
Page 2
January, 2026
Bulletin No.: PIT5993F
6304616
Correction
Note: A low battery or battery disconnect can cause DTC B192A to set current in the BCM and for the DTC to clear
the BCM must run and pass its diagnostic for the DTC. The BCM runs the diagnostic when the theft system is
armed. To arm the theft system, perform the following: exit the vehicle with all the fobs and close all doors, liftgate
and hood. Then lock the vehicle with the fob and allow it to set for several minutes so the theft system arms. During
this time the BCM will test the glass breakage loop and if the loop is complete the DTC will go to history and if so
then no further repairs are needed.
To test the glass breakage loop, disconnect the battery and the BCM X4 and X7 connectors. Using the correct test
probe EL-35616-58 (BK) check for proper terminal tension at the BCM X7 terminal 27. If terminal tension is good,
then use an ohmmeter to check the resistance of the glass breakage loop to the BCM ground. Do this by connecting
one lead of the ohmmeter to the BCM ground at connector X4 terminal 24 or 25 and the other ohmmeter lead to
terminal 27 of the BCM X7 connector. Measure the resistance.
If the resistance to ground is greater than 20 ohms, then inspect the glass breakage loop for poor connections,
which could occur at any point in the series circuit, shown above. The most common areas seen are the connections
at either of the rear quarter glass assemblies.
Note: In some cases, it has been found that the connection issues at the rear quarter glasses were caused by the
installation of aftermarket window tint, decals, stickers, etc. and these types of failures are NOT covered under
warranty.
If an open circuit is not found and there is a B192A set as either active or in history, please contact TAC for further
instructions.
If the resistance to ground is less than 20 ohms, then the loop resistance is within spec, but if you are dealing with
an intermittent issue then inspect and manipulate the glass breakage loop connections/wiring to see if the resistance
increases. Repair any points of high resistance.
Warranty Information
For vehicles repaired under warranty, please use the appropriate warranty labor operation based on the actual
cause and repair.
Note: In some cases, it has been found that the connection issues at the rear quarter glasses were caused by the
installation of aftermarket window tint, decals, stickers, etc. and these types of failures are NOT covered under
warranty.
Bulletin No.: PIT5993F
January, 2026
Page 3
Additional SI Keywords
B192A draw lo low parasitic
Version
7
Modified
03/23/2023 - Created on.
05/15/2024 - Update to the model year.
04/25/2023 - Update to the Cause, Correction and Warranty sections
12/03/2024 - Update to the model year.
03/07/2025 - Update to the Correction section
10/22/2025 - Update to the Models and Correction sections.
01/15/2026 - Update to the Correction section.
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
- High density negative paste, improves performance and...
- Enhanced life alloy or Silver Calcium stamped alloy...
- Calcium lead positive grid, maximizes conductivity and...
- Robust envelope separator with puncture resistant back...
- Vent cap design that resists acid leakage
- High density negative paste, improves performance and...
- Enhanced life alloy or Silver Calcium stamped alloy...
- Calcium Lead positive grid, maximizes conductivity and...
- Robust Envelope Separator with puncture-resistant back...
- Vent cap design that resists acid leakage
Last update on 2026-05-30 / Affiliate links / Images from Amazon Product Advertising API
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: PIT5993F
Replacement Service Bulletin Number:
MFR Communication Date: 2026-01-15
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: UNKNOWN OR OTHER
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
- Stay Updated with Lifetime Access: This obd2 scanner includes lifetime free software updates for all app service functions. With a single payment, enjoy full access to diagnostics, reset tools, and maintenance features — zero subscription fees. A budget-friendly choice for weekend mechanics, home car owners, and DIYers, supporting vehicles from 1996 onward. Come to us with your VIN to check compatibility.
- Full Bidirectional Control/Active Tests & Stable Wireless Connectivity: This car code reader features full bidirectional control, allowing you to send commands to the vehicle's ECU for active tests on components such as fuel pumps, injectors, A/C clutches, windows, sunroofs, and more. This car scanner diagnostic tool helps DIYers quickly diagnose and test vehicle parts, cutting down troubleshooting and repair time. With BT 4.0 wireless connectivity, you can enjoy cable-free diagnostics up to 33 feet. Stand in your garage and test windows, wipers, or even engine components—all without needing to move around your car.
- Portable Car Scanner with 26 Special Functions: Scheduled vehicle maintenance with the A30M car diagnostic scanner can keep your vehicle in peak condition and save you big on dealership trips. The XTOOL A30M obd2 scanner diagnostic tool features essential reset and relearn functions, such as Oil Reset, EPB Reset (Electronic Parking Brake Release), SAS, ABS Brake Bleeding, Throttle Body Relearn, Injector Coding, Crank Sensor Relearn, Headlight Adjustment, and Tire Size Reset. Note: Service functions may vary by vehicle model – check compatibility beforehand!
- Wide Compatibility CAN FD & FCA
Autoauth: This obd2 scanner diagnostic tool is compatible with over 85+ car brands from the U.S., Europe, and Asia, providing extensive coverage through a BT connection with your smartphone or iPad. Now upgraded to support the latest protocols, it includes FCA AutoAuth access for Chrysler, Jeep, Dodge, and Fiat (2018+), and supports CAN FD for GM (2020+) models, giving you greater access to newer vehicles and systems. Note: The FCA AutoAuth account is not included with the device. Users must register and pay separately through the official FCA AutoAuth website to access diagnostic functions for vehicles that require it. - Up to 8 Live Data Streams Graphing – Real-Time Graphing for Deeper Insight: This car scanner supports up to 8 live data streams simultaneously with intuitive, real-time graphing. Gain comprehensive insights into your vehicle’s performance, making it easier to spot issues, detect trends, and make informed diagnostic decisions with confidence.
- Comprehensive OBD2 Scanner with 16 Resets: The XTOOL D5S car code reader and vehicle reset tool provides an advanced diagnostic solution with 16 commonly needed reset functions, including Electronic Parking Brake Reset (EPB Reset), SAS, BMS Reset (Battery Test), Throttle Body Relearn, TPMS Reset, ABS Bleeding, Injector Coding, Gearbox Match, Suspension Adjustment, Headlight, Window Initialization, Crank Sensor Relearn and more. Equipped with CAN FD Protocol and FAC AutoAuth, the D5S obd2 scanner diagnostic tool ensures compatibility with a broad range of modern vehicles, allowing users to address common maintenance needs quickly. NOTE: Please Check the Compatibility before ordering.
- 4 Main System Car Scanner & Full OBD2 Diagnostics: The XTOOL D5S car code reader is ideal for home mechanics, DIYers, and professionals, providing access to Transmission/Engine/ABS/SRS systems to read DTCs, Live data can be displayed in text or up to 4 PID data graphs, along with full OBD2 diagnostics to check the engine light on, other obd2 issues and routine maintenance. This car diagnostic scanner ensures you can keep your vehicles in top condition, avoiding costly repairs or unexpected breakdowns. NOTE: Some vehicles display three systems after connection because the transmission and engine of some vehicles are integrated into one.
- Check Engine Code Reader & Real-Time Engine Monitoring: Whether you're a car owner, a DIYer, or run a repair shop, the XTOOL D5S obd2 scanner diagnostic tool makes engine diagnostics fast and frustration-free, reading and explaining trouble codes in seconds—no confusion. Check live data like fuel trim, 02 sensor voltage, RPM, and coolant temp to pinpoint mis~fires, rough idle, or sensor issues. After repairs, simply use the D5S check engine code reader and reset tool to turn off the check engine light and confirm the problem’s fixed—saving time, money, and unnecessary shop visits. - Note: If the check engine light comes back on, it indicates the original problem still exists.
- Portable Car Scanner for ABS and SRS: XTOOL D5S gives you peace of mind when ABS or airbag warning lights come on. It reads and clears ABS codes to help you fix brake sensor, traction control, or wheel speed issues, and supports ABS bleeding after repairs like caliper or master cylinder replacement. For airbag systems, it scans and clears SRS codes related to airbags, seatbelt tensioners, and crash sensors. Whether you're doing repairs at home or running a small shop, the D5S is a cost-effective solution for safety diagnostics. Note: If a fault code returns after clearing, it usually means the issue hasn’t been fully resolved. Please check the compatibility before ordering.
- Transmission Warning Light ON? Here’s the Transmission Diagnostic and Reset Tool You Need: The XTOOL D5S is more than just a basic car scanner—it’s an easy-to-use transmission diagnostic tool. From rough shifts to slipping gears, the D5S lets you read and clear transmission trouble codes, monitor real-time TCM data, and perform transmission resets after fluid changes or repairs. Whether you’re a hands-on car owner or a pro running a busy shop, this OBD2 scanner with transmission functions helps you catch problems early—saving you time, money, and future headaches.. Note: Clearing fault codes is equivalent to a reset on some vehicles, but not all. For help, contact XTOOL Tech Support.
- Top Reasons to Choose the D7S OBD2 Scanner: XTOOL D7S car scan tool, an upgrade of XTOOL D7, offers comprehensive features for automotive technicians, workshops, and DIY enthusiasts 1. Upgraded Hardware: 2+64GB memory, rear camera, intuitive interface, foldable bracket 2. Complete Diagnostics: FCA Autoauth, OE-level all system scan, 39+ maintenance services, 4K+ bidirectional, CANFD/DoIP protocol 3. Advanced Capabilities: ECU c0ding, PMI functions 4. Wide Compatibility: Support 10,000+ models, covering 99% vehicle brands 5. Multi-language: Available in 22+ languages, No IP Restrictions 6. 3-Year Updates: Save 300 bucks on software updates for the latest features and optimizations
- 2026 Upgraded D7S Car Scanner Features: The newly 2026 D7S V2.0 scanner for car brings exciting features for advanced vehicle diagnostics and enhanced user experience 1. FCA AutoAuth: Now supports FCA SGW module for Chrysler, for Jeep, for Dodge (2018+), for Fiat (2017+), enabling faster vehicle communication without gateway restrictions 2. PMI (Offline ECU Pr0gramming): Allows for Ford, for Lincoln, and for Mazda ECU pr0gramming for new modules 3. Optimized Diagnostic Report 2.0: Personalized reports with logos and customer info for auto shops. Note: Compatibility varies by cars, please check before order
- 39+ Services/Resets/Adaptations/Relearns/Calibrations: XTOOL D7S full system car scanner diagnostic tool tackles 99% of common car issues through its 36+ special functions, including Oil Reset, EPB, SAS, BMS, Throttle Reset, Injector C0ding, ABS Bleed, TPMS Reset, Power Balance, etc and also covers specific-vehicle functions like Crank Sensor Relearn, ABS Initialization, Cylinder Power Balance, Fuel Trim Reset, Idle Relearn etc. This car diagnostic scanner enhances efficiency, making repairs and maintenance hassle-free. Tip: DO NOT for All vehicles, please check compatibility first
- Cost-effective ECU C0ding Scan Tool for Specific Brands: Enhance your vehicle's performance with XTOOL D7S! This obd2 scanner all systems bidirectional offers advanced capabilities at an affordable price, supports online for BMW, for Benz and offline for BENZ, for MIT, along with PMI functions for Ford, for Mazda, and for Lincoln. Ideal for technicians and DIY enthusiasts, this automotive scanner diagnostic tool optimizes vehicle performance and enhances the driving experience. Note: Not for all cars and modules, please send car VIN to check the compatibility before purchase
- OE All System Diagnostic & 8 Pids Graphing: XTOOL D7S is a comprehensive all system bi directional obd2 scanner that delivers dealer-level diagnostics, completely controlling over your vehicle’s performance and health. This automotive scan tool can read and clear DTCs, view live data and ECU information, retrieve freeze frames, and perform active tests and full obd2 functions. This bi-directional scan tool can can identify your vehicle's make, model, and year information with just one click and show up to 8 PIDs live data with options for CSV viewing, playback, and recording for in-depth analysis. It is easy-to-use for both professionals and beginners, helping pinpoint issues efficiently
Last update on 2026-06-12 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.