NHTSA ID Number: 10143418
Manufacturer Communication Number: 18169
Summary
18169 – Service Update.- Certain vehicles equipped with a 10-speed automatic transmission (RPO MF6), and a 6.2L engine (RPO L86) may experience a 2 to 3 second delayed engagement when shifting between park, reverse, or drive (performing garage shifts). Customers may also experience a hard shift, with a possible bang or clunk. If the vehicle is on an incline the customer may experience a short roll back due to the hesitation. Dealers are to reprogram the transmission control module (TCM) with an updated calibration.
6 Affected Products
Vehicles
CADILLAC | ESCALADE | 2018 |
| CHEVROLET | TAHOE | 2018 |
| GMC | YUKON | 2018 |
| GMC | YUKON DENALI | 2018 |
| GMC | YUKON DENALI XL | 2018 |
| GMC | YUKON XL | 2018 |
SEOCONTENT-START
Service Update
18169 10 Speed Transmission Delayed Shifting
| Reference Number: | N182162210 | Release Date: | May 2018 |
| Revision: | 00 |
| Attention: | This service update includes vehicles in dealer inventory and customer vehicles that return to the dealership for any reason. This bulletin will expire at the end of the involved vehicle’s New Vehicle Limited Warranty period. |
| Make | Model | Model Year | RPO | Description | |
|---|---|---|---|---|---|
| From | To | ||||
| Cadillac |
Escalade | 2018 | 2018 | MF6 L86 | Transmission, 10-Spd Automatic 6.2L V8 Ecotec3 Engine |
| Chevrolet |
Tahoe | ||||
| GMC | Yukon / Yukon XL / Yukon Denali / Yukon Denali XL | ||||
Involved vehicles are marked “open” on the Investigate Vehicle History screen in GM Global Warranty Management system. This site should always be checked to confirm vehicle involvement prior to beginning any required inspections and/or repairs.
| Condition | Certain 2018 model year Cadillac Escalade, Chevrolet Tahoe, and GMC Yukon / Yukon XL / Yukon Denali / Yukon Denali XL vehicles equipped with a 10-speed automatic transmission (RPO MF6), and a 6.2L engine (RPO L86) may experience a 2 to 3 second delayed engagement when shifting between park, reverse, or drive (performing garage shifts). Customers may also experience a hard shift, with a possible bang or clunk. If the vehicle is on an incline the customer may experience a short roll back due to the hesitation. |
| Correction | Dealers are to reprogram the transmission control module (TCM) with an updated calibration. |
Parts
No parts are required for this repair.
Warranty Information
| Labor Operation | Description | Labor Time | Trans. Type | Net Item |
| 9103696* | TCM Reprogramming with Service Programming System (SPS) | 0.7 | ZFAT | N/A |
| 9103866** | Module Programming Not Required | 0.2 | ZFAT | N/A |
* To avoid warranty transaction rejections, the SPS Warranty Claim Code(s) must be entered when submitting this transaction.
** SPS Warranty Claim Code is NOT required when submitting this transaction.
Service Procedure
Note: Carefully read and follow the instructions below.
- Ensure the programming tool is equipped with the latest software and is securely connected to the data link connector. If there is an interruption during programming, programming failure or control module damage may occur.
- Stable battery voltage is critical during programming. Any fluctuation, spiking, over voltage or loss of voltage will interrupt programming. When required install the PSC-550 or EL49642 SPS Programming Support Tool to maintain system voltage. If not available, connect a fully charged 12 V jumper or booster pack disconnected from the AC voltage supply. DO NOT connect a battery charger.
- Turn OFF or disable systems that may put a load on the vehicles battery such as; interior lights, exterior lights (including daytime running lights), HVAC, radio, etc.
- Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M) system status indicators to NO.
- If the Same Calibration/Software Warning is noted on the SPS Controller screen, do NOT attempt to program the module. No further action is required. Refer to the Warranty section of the bulletin and use labor operation code 9103866, Module Programming Not Required.
- Reprogram transmission control module. Refer to K71 Transmission Control Module: Programming and Setup in SI.
- Complete the Service Fast Learn Procedure through the TIS2Web Setup Procedure or through GDS Special Functions after programming on these vehicles.
- Record SPS Warranty Claim Code on job card for warranty transaction submission.
Dealer Responsibility
Whenever a vehicle subject to this service update enters your vehicle inventory, or is in your facility for service in the future, and the vehicle is still covered under the New Vehicle Limited Warranty, you must take the steps necessary to be sure the service update correction has been made before selling or releasing the vehicle.
All new, used, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc. in dealers’ possession and subject to this bulletin must be held and inspected/repaired per the service procedure of this bulletin before customers take possession of these vehicles. Involved vehicles must be held and not delivered to customers, dealer-traded, released to auction, used for demonstration, or any other purpose.
All GM Certified Used vehicles currently in the dealers’ inventory within the Certified Pre-Owned Inventory System (CPOIS) will be de-certified and must be held and remedied per the service procedure in this bulletin. Upon submitting an accepted/paid warranty transaction in the Global Warranty Management (GWM) system, the vehicle can be re-certified for sale within the CPOIS system, or once again be used in the CTP program.
18169
Release Date: May 2018
Revision: 00
To View or Download this Document Click Here
To View or Download this Document Click Here
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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