Bobcat T190 Instrument Panel Issues

[MikePhua]

The Bobcat T190 is a compact track loader favored for its powerful 61-horsepower engine, versatile performance, and advanced operator controls designed to enhance productivity and safety on the job site. A notable feature on some T190 models is the optional deluxe instrument panel, which introduces a variety of digital displays and security functions to the loader's operating system.
Deluxe Instrument Panel Features
The deluxe instrument panel offers operators enhanced diagnostic and control capabilities, including:

• Multi-language display options to cater to diverse operators.
  
• Digital time and job clocks to track operation duration and maintenance intervals.
  
• A keyless start security system enabling PIN code protection, designed to prevent unauthorized use of the machine.
  
• Feature lockouts that provide customizable operating restrictions.
  
• A “help” menu for troubleshooting and guidance.
  

These features aim to improve machine security, operational awareness, and ease of management.
Issue with D-Grade Screen and PIN Code Loss
Some users have encountered a puzzling problem. While scrolling through the instrument panel displays, a function labeled “D-grade” might appear. Interacting with this setting—specifically pressing the “enter” button while on this screen—has been known to cause the engine to shut down unexpectedly. After this shutdown, when operators attempt to start the machine again and enter their previously set PIN code, the panel might reject the code as invalid.
Although the engine starts and operates normally, the loss of PIN code functionality disables the keyless start security lockout feature. This means the machine can be started by anyone without authentication, raising security concerns, especially when the machine is left unattended overnight.
Understanding the Problem
This incident likely stems from a software glitch or an unintended reset process triggered by accessing the D-grade screen improperly. The cause may be related to how the panel stores and manages security credentials and operating modes internally. Once the PIN code is lost or corrupted in the system memory, it cannot be recognized until reprogrammed or reset by a certified dealer or technician.
Suggested Solutions

• Contact an authorized Bobcat dealer or service center for reprogramming of the PIN code and instrument panel reset.
  
• Avoid interacting with unknown or undocumented panel screens such as the “D-grade” to prevent accidental shutdowns or system resets.
  
• Regularly backup or record important security codes and settings externally.
  
• Stay updated on firmware or software updates for the instrument panel from Bobcat that may address such glitches.
  
• For enhanced security, consider integrating physical locking mechanisms as a backup to electronic PIN controls.
  

Terminology Explained

• Deluxe Instrument Panel: An advanced digital display console providing additional machine control, diagnostics, and security features.
  
• PIN Code: A personal identification number used as a security key to enable machine operation.
  
• Keyless Start Security System: An electronic system allowing engine start through authentication without a physical key.
  
• D-grade Screen: An undocumented or user-misunderstood display or mode on the instrument panel that can affect system operation.
  

Related Small Story
An operator in Saskatchewan purchased a slightly used Bobcat T190 equipped with the deluxe panel. Curious about the features, he accidentally entered the D-grade screen and pressed the enter button, which caused the engine to shut down unexpectedly. When restarting, his PIN was not accepted, forcing a call to the dealer. The technician explained the screen was part of a diagnostic mode not intended for regular users and reprogrammed the system. The event highlighted the importance of thorough operator training and caution when using advanced digital control systems in heavy machinery.
Summary List

• Bobcat T190 deluxe panel includes keyless start, multi-language, and diagnostics.
  
• “D-grade” screen interaction can cause engine shutdown and PIN loss.
  
• PIN code loss disables electronic security lockout.
  
• Dealer service required for PIN reprogramming.
  
• Avoid using undocumented panel functions.
  
• Keep security codes documented and updated.
  
• Software updates may resolve glitches.
  

Understanding these features and cautioning users can prevent downtime and preserve the security benefits provided by modern instrument panels on Bobcat loaders and similar equipment.