1995 Buick Commercial Chassis Cruise Control Isn't Working

Fixing Cruise Control Issues in 1995 Buick Commercial Chassis

Find Repair Location
Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 1995 Buick Commercial Chassis cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty or malfunctioning sensor can lead to incorrect readings, causing issues with engine performance or other systems relying on accurate data.
  • Control Module: A faulty control module can lead to erratic vehicle behavior or failure of various electronic systems due to improper signal processing.
  • Throttle: A faulty throttle body or a defective accelerator pedal position sensor may be causing inconsistent throttle response.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What are the steps to diagnose the cruise control issue in a 1995 Buick Commercial Chassis?

When diagnosing a cruise control issue in a 1995 Buick Commercial Chassis, it's crucial to follow a methodical approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the fuse related to the cruise control system, as a blown fuse is a common and easily fixable problem. Next, examine the cruise control module for any signs of damage or loose connections, which can impede its functionality. Testing the cruise control switch located on the steering wheel is also important, as a malfunctioning switch can prevent the system from activating. Since this model relies on vacuum lines, ensure these are intact and free from leaks or damage, as any issues here can disrupt the cruise control operation. Additionally, using a diagnostic scanner to check for error codes can help identify underlying problems that may not be immediately visible. If these initial steps do not resolve the issue, seeking assistance from a mechanic experienced with Buick vehicles is recommended for a comprehensive diagnosis and repair. By adhering to this structured diagnostic process, you can effectively troubleshoot and resolve cruise control issues in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 1995 Buick Commercial Chassis?

When troubleshooting the cruise control system in a 1995 Buick Commercial Chassis, it's essential to consider several common problems that could be affecting its functionality. A blown fuse is often the first culprit to check, as it can easily disrupt the electrical flow necessary for the system to operate. If the fuse is intact, the next step is to inspect the cruise control switch, which may be faulty and unable to engage or disengage the system properly. Additionally, vacuum leaks can significantly impair the cruise control's performance, as they prevent the system from maintaining the required pressure. Another critical component to examine is the speed sensor; if it malfunctions, the cruise control may struggle to maintain a consistent speed. Furthermore, issues with the brake light switch can also interfere with the system, as it is designed to disengage when the brakes are applied. Lastly, a malfunctioning throttle cable can hinder the cruise control's ability to adjust the vehicle's speed effectively. By systematically checking these components, you can accurately diagnose and restore the cruise control functionality in your vehicle.

How urgent is it to address the non-functioning cruise control in a 1995 Buick Commercial Chassis?

Addressing a non-functioning cruise control in a 1995 Buick Commercial Chassis should be considered a priority for any DIY enthusiast. While it may not present an immediate safety hazard, neglecting this issue can lead to increased driver fatigue during long trips, as the convenience of maintaining a steady speed is lost. Furthermore, a malfunctioning cruise control system can indicate underlying electrical problems that, if left unresolved, may escalate into more significant and costly repairs. By tackling this issue promptly, you not only enhance your driving comfort but also protect your vehicle's electrical system from potential damage. Therefore, taking the time to diagnose and repair the cruise control system can lead to a more enjoyable and safer driving experience, making it a worthwhile endeavor for any car owner.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.

1995 Buick Commercial Chassis Cruise Control Repairs Guide