NHTSA ID Number: 10119054
Manufacturer Communication Number: PIT5383C
Summary
This Preliminary Information communication provides information to the technician about vehicles with various Heater-Vent-Air Conditioning blower mode or temperature issues. Technician will need to reprogram the Heater-Vent-Air Conditioning control module using Tis2Web and Service Programming System.
14 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
BUICK | ENCORE | 2015 |
| CADILLAC | ATS | 2015 |
| CADILLAC | CTS | 2015 |
| CADILLAC | ESCALADE | 2015 |
| CADILLAC | ESCALADE ESV | 2015 |
| CHEVROLET | COLORADO | 2015 |
| CHEVROLET | CORVETTE | 2015 |
| CHEVROLET | SILVERADO 2500 | 2015 |
| CHEVROLET | SUBURBAN | 2015 |
| GMC | CANYON | 2015 |
| GMC | SIERRA 2500 | 2015 |
| GMC | SIERRA DENALI | 2015 |
| GMC | YUKON | 2015 |
| GMC | YUKON XL | 2015 |
Condition/Concern
Following HVAC issues:
1. Front or rear HVAC controls inoperative or blink (does not light-up or respond as expected)
2. HVAC controls stuck in an incorrect operating state (example: regardless of the temperature setting, it only blows full cold air, air delivery mode may not
follow expectations, blower may not respond, etc)
3. A/C compressor inoperative or does not follow expected commands
4. A/C compressor clutch is engaged but the compressor solenoid valve may be commanded at a low duty cycle (0%) when cooling demands are high
5. Recirculation inoperative or does not follow expected commands.
6. Rear defogger inoperative or does not follow expected commands.
7. Heated or cooled seats inoperative or does not follow expected commands (Cadillac and Corvette Models ONLY)
8. Battery Saver Message on intermittently or flashing on and off.
9. Dead Battery
10. Service Heater Message on DIC.
11. Low Coolant light/message displayed.
12. After a remote vehicle start (RVS), when the ignition is turned on, the HVAC, IPC, turn signals, or any of the issues listed above may not function properly.
13. Any related HVAC DTC’s: B0163 B0183 B1405 B0173 B0178 B0509 B0514 B0519 B3583 B3933 B0193 B0208 B0223 B0228 B0233 B0408 B0413 B0418 B0423 B0428 B0433 B1395 B3531 B374A B3782 B393B B3925 U1501 U1510
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5383C
Date: Oct-2016
NHTSA ID Number: 10127227
Manufacturer Communication Number: PIT5383B
Summary
This Preliminary Information communication provides information to the technician about vehicles that have various Heater-Vent-Air Conditioning issues. Technician should use Tis2Web to reprogram the Heater-Vent-Air Conditioning control module.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5383B
Date: Sep-2015
NHTSA ID Number: 10114501
Manufacturer Communication Number: PIT5383A
Summary
This Preliminary Information communication provides information to the technician about vehicles that have various Heater-Vent-Air Conditioning issues. Technician should use Tis2Web to reprogram the Heater-Vent-Air Conditioning control module.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5383A
Date: Apr-2015
NHTSA ID Number: 10139339
Manufacturer Communication Number: PIT5383
Summary
This Preliminary Information communication provides information to the technician about vehicles with various Heater-Vent-Air Conditioning concerns. Technician will need to reprogram HVAC Control Module with the updated calibration available in TIS2WEB starting on 1/17/2015.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5383
Date: Mar-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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- Advanced VCI Box, Industry-leading J2534 Pass-Thru Technology: This J2534 Pass-Thru Programmer is designed espically for technicians, independent shop owners, and DIY enthusiasts, enables fast, reliable computer-based programming. It supports all J2534 protocols—including the latest DoIP and CAN FD—ensuring full compatibility with both legacy and next-generation vehicles.
- High-Speed OEM-Level Diagnostics & Programming: Unlock true OEM functionality with comprehensive system diagnostics, guided troubleshooting, coding, adaptations, resets, and programming—all designed to slash repair time. This all-in-one tool eliminates the need for multiple OEM devices, boosting efficiency and cutting costs. Equipped with High-Speed USB, it delivers 10x more data per second than competing solutions
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- 6.6 ft USB-C Cable & Portable Storage Case: The RLink J2534 diagnostic tool features a 6.6ft USB 2.0 Cable and a 1.2 ft OBDII Extension Cable, allows to connection your computer easily outside the vehicle. The included handled carry case offers easy portability, storage, and hanging options—keeping your gear clean and ready to go, anywhere.
- J2534 Pass-Thru Programmer: TOPDON RLink J2534 is an advanced diagnostic and reprogramming tool that support all J2534 protocols, as well as D-PDU, CAN-FD and DoIP, ensuring compatibility with a wide range of modern vehicles. It offers extensive versatility with support for over 18 major automotive brands, including Chrysler, Ford, GM, Nissan, Toyota, Honda, Subaru, Land Rover/Jaguar, Volvo, Wuling, Volkswagen/Audi, Mercedes-Benz, and BMW. NOTE: Not compatible with Ford IDS diagnostic software
- All-in-One OEM Diagnostics: This J2534 ECU programming tool elevates your automotive repair capabilities to new heights by delivering complete OEM diagnosis. Boasting comprehensive full-system diagnostics, intuitive repair guides, advanced ECU programming and coding, common reset services, a vast library of repair information and more, this all-in-one solution empowers technicians to effortlessly tackle complex vehicle issues with ease. *Not compatible with 24V vehicles
- Proven Performance You Can Trust: Backed by over 10000 real vehicle tests and benefit from a wealth of practical experience, this OEM reprogramming tool guarantees stable and exceptional performance. Supported by TOPDON's dedicated technical experts with in-depth knowledge of both auto repair and J2534 Pass-Thru programming, the RLink J2534 provides prompt and professional assistance, ensuring a smooth setup and reliable compatibility
- Integrated Excellence, Always Up-to-Date: Featuring the exclusive RLink Platform to provide a streamlined experience with one-click driver installation and management, ensuring flawless integration with your OE software, maintaining the original performance quality. The built-in operation guide makes mastering OE software quick and easy, so you can get started right away. Plus, with lifetime free updates, your diagnostics will stay current with the latest drivers and innovations
- Efficiency Meets Versatility: Engineered to support three CAN channels simultaneously - CAN FD and CAN-CC included, giving you the edge in fast troubleshooting. To perfectly synchronized with the OE software, please diagnose with active subscriptions and make sure your computer system is running a compatible 64-bit Windows version (7, 8, 10 or later) to fully leverage the power of RLink J2534. *We don't provide extra OE software
- Dual WiFi & 10.1" Touchscreen: Provides a stable, high-speed wireless link 3x faster than bluetooth, and a responsive, professional interface. Topdon ONE obd2 scanner diagnostic tool ensures smooth, non-lagging diagnostic scan, boosting mechanic efficiency
- J2534 Pass-Thru Support: The included ONE VCI supports the J2534 standard, allowing it to function as a pass-thru device when paired with OEM diagnostic software.Through TOPDON’s RLink platform, technicians can perform dealer-level coding, expanding in-house capabilities without investing in multiple factory automotive scan tools
- OE Topology Mapping: Visualize the vehicle’s ECU network exactly as it’s built.Zoom, pan, and highlight specific modules to pinpoint component issues with precision.Topology mapping displays real-time communication between modules
- 50 Plus Service Functions: Covers high-demand services like ADAS calibration, DPF regen, TPMS reset, ABS bleed, and throttle adaptation.Expands your service menu, allows you to charge premium rates, and turns away zero jobs due to lack of tooling. Vehicle-specific functionality may vary
- Advaned ECU Coding: 10 of the most serviced brands in North America, including full ECU coding and flash hidden support for BMW, VW, Au-di, Benz, Porsche, Toyota, Ni ssan and more. Enables module replacement, feature customization, and personal settings with automatic backup or restore.Lets your shop safely offer high-margin customization services, attracting more customers and boosting profit
Last update on 2026-06-07 / Affiliate links / Images from Amazon Product Advertising API
SEOCONTENT-START
Bulletin No.: PIT5383C
Date: Oct-2016
Subject: Various HVAC Blower Mode or Temperature Issues / Heated Cooled Seats / Dead Battery / Battery Saver
Issues (Reprogram K33 HVAC Control Module)
Models: 2015 Buick Encore (built before 4/4/15)
2015 Cadillac ATS, CTS (built before 2/26/15)
2015 Cadillac Escalade* (built before 1/30/15)
2015 Cadillac XTS (built before 2/18/15)
2015 Chevrolet Colorado (built before 1/30/15)
2015 Chevrolet Corvette (built before 3/19/15)
2015 Chevrolet Silverado 1500, Silverado 2500/3500* (built before: 1/8/15 if 11th VIN digit = “G”, 1/22/15 if 11th VIN digit = “Z”, 1/12/15 if 11th vin digit = “F”)
2015 Chevrolet Suburban*, Tahoe* (built before 1/30/15)
2015 GMC Canyon (built before 1/30/15)
2015 GMC Sierra 1500, Sierra 2500/3500* (built before: 1/8/15 if 11th VIN digit = “G”, 1/22/15 if 11th VIN digit = “Z”, 1/12/15 if 11th VIN digit = “F”)
2015 GMC Yukon Models* (built before 1/30/15)
* Only Utilities And 2500/3500 Pickup Trucks built with RPO AVF (Mid-Year 2015
This PI was superseded to update the Concern with additional symptoms. Please discard PIT5383B.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern
Some customers may comment of any of the following HVAC issues:
1. Front or rear HVAC controls inoperative or blink (does not light-up or respond as expected)
2. HVAC controls stuck in an incorrect operating state (example: regardless of the temperature setting, it only blows full cold air, air delivery mode may not follow expectations, blower may not respond, etc)
3. A/C compressor inoperative or does not follow expected commands
4. A/C compressor clutch is engaged but the compressor solenoid valve may be commanded at a low duty cycle (0%) when cooling demands are high
5. Recirculation inoperative or does not follow expected commands.
6. Rear defogger inoperative or does not follow expected commands.
7. Heated or cooled seats inoperative or does not follow expected commands (Cadillac and Corvette Models ONLY)
8. Battery Saver Message on intermittently or flashing on and off.
9. Dead Battery
10. Service Heater Message on DIC.
11. Low Coolant light/message displayed.
12. After a remote vehicle start (RVS), when the ignition is turned on, the HVAC, IPC, turn signals, or any of the issues listed above may not function properly.
13. Any related HVAC DTC’s: B0163 B0183 B1405 B0173 B0178 B0509 B0514 B0519 B3583 B3933 B0193 B0208 B0223 B0228 B0233 B0408 B0413 B0418 B0423 B0428 B0433 B1395 B3531 B374A B3782 B393B B3925 U1501 U1510
Recommendation/Instructions
Reprogram the K33 HVAC Control Module with the updated calibration available in TIS2WEB starting on 1/17/2015. If the issue(s) you are trying to address are not corrected after reprogramming the HVAC Control Module, perform normal diagnostics using SI.
Warranty Information
For vehicles repaired under warranty use:
Labor Operation Description Labor Time
2810015 HVAC System Control Module Reprogramming with SPS Use Published Labor Operation Time
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.
SEOCONTENT-END
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