Adding Cruise Control (RPO K34) – 2007-2019 Chevrolet Silverado & Express, GMC Sierra & Savana

Bulletin No.: PIT4844H
Published date: 08/22/2018

Preliminary Information

PIT4844H Adding Cruise Control (RPO K34)


Brand: Model: Model Years: VIN: Engine: Transmissions:
from to
Chevrolet Silverado 1500 2007 – 2013 All All All All
GMC Sierra 1500 2007 – 2013 All All All All
Chevrolet Silverado 2500/3500 2007 – 2014 All All All All
GMC Sierra 2500/3500 2007 – 2014 All All All All
Chevrolet Express 2007 – 2019 All All All All
GMC Savana 2007 – 2019 All All All All


Supersession Statement

This PI was superseded to add model years. Please discard PIT4844G.

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.


Condition / Concern

Some customers may request the installation of Cruise Control on a vehicle which did not come equipped with the option.

General Motors requests that dealers locate a vehicle equipped with the customers requested options, which would include cruise control.


Recommendations / Instructions

Please contact the Techline Customer Support Center (TCSC) at 1-800-828-6860 English or 1-800-503- 3222 French to determine if a calibration is available for the vehicle. If a calibration or VCI is available, follow the instructions below:

Obtain and install the following parts that are intended for a vehicle equipped with RPO K34.

  1. Steering Wheel with Cruise Control Buttons
  2. Steering Wheel SIR Coil Note: *(If required, some Vans may have the uplevel Steering Wheel SIR Coil installed from the factory. The dealer will just need to document that the correct SIR Coil is already installed in the vehicle on the Repair Order when sending to Techline.)
  3. Steering Column Wiring Harness Note: *(If required, some Vans may have the uplevel Steering Column Wiring Harness installed from the factory. The dealer will just need to document that the correct harness is already installed in the vehicle on the Repair Order when sending to Techline.)
  4. Calibration or VCI number from Techline Customer Support

Note: The Dealer will need to Fax a copy of the Repair Order that includes the Part Numbers of the Steering Wheel with buttons, SIR Coil, and Steering Column Harness that were installed to Techline before calling to obtain the VCI Number.  (Some Vans may have the uplevel Steering Wheel SIR Coil and Steering Column Wiring Harness installed from the factory. The dealer will need to document that the correct P/N Steering Wheel SIR Coil and Steering Column Wiring Harness is already installed in the vehicle on the Repair Order when sending to Techline.)

NOTE: As this is a customer pay request, there will be a $50.00 charge to the dealer.

Note: It is up to the dealer to identify the appropriate part numbers needed to complete this add on option using the Electronic Parts Catalog (EPC). Be sure to turn off all filters when searching EPC and identify the following items above that include RPO K34.

Note: DO NOT call Partech for parts assistance for this request.


Warranty Information

This installation procedure is to be performed at the customer’s request and at their expense.

It is not a warranty repair and a claim should not be submitted for reimbursement.

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.

Bulletin No.: PIT4844H
Published date: 08/22/2018

GDE Error: Error retrieving file - if necessary turn off error checking (404:Not Found)


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 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 following are the supported interface tools:

OEM GM Tech 2 Dealer Package
Bosch GM MDI 2 (2nd Gen) MDI2 interface

Bosch EL-52100-AM GM Multiple Diagnostic Interface 2 (MDI 2) Kit

CarDAQ-Plus 2 Diagnostic Code Reader and J2534 Programming Tool

Drew Technologies (DRWCDPLUSKIT) CarDAQ-Plus J2534 Flash Reprogramming Kit
Drew Tech CarDaq-M 2 SAE J2534-1/2 Reflash Reprogramming Tool OEM Diagnostics

Drew Technologies (DRWMONGGM) Mongoose GM Vehicle Interface (VPW/CAN) J2534

VSI J2534 ECU Reprogrammer & Diagnostic Adapter
Autel (AULMF2534) MaxiFlash Pro
Dearborn d-Bridge Adapter J2534 OBDII Engineering 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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Last update on 2019-03-18 / Affiliate links / Images from Amazon Product Advertising API

Last update on 2019-03-18 / Affiliate links / Images from Amazon Product Advertising API

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