Cadillac 60 Special Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Cadillac 60 Special and How to Fix Them

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Reviewed by
Andrew Hajjar
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 Cadillac 60 Special 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.

How much does it cost to fix a Cadillac 60 Special cruise control isn't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

When the throttle position sensor fails, the engine's computer tends to overcompensate with fuel, leading black exhaust coming from the tailpipe. There is a strong possibility of engine misfires, and the check engine light will come on.

Throttle position sensors can also develop "dead spots," or certain places along the throttle curve where it doesn't get a reading. When this happens, the above symptoms can occur but then stop when you further press or let off the gas pedal.

When the vehicle speed sensor fails or the wiring harness prevents signal transmission, the speedometer is the first thing that will stop functioning properly. This can be an intermittent issue where the speedometer only works occasionally, the speedometer may cease all function, or the speedometer may read erratically or incorrectly. Also, the traction control and anti lock brake warning lights specific to each vehicle may be illuminated, depending on the design of those systems. You may notice the vehicle hesitate to accelerate, cruise control will not function properly, and the vehicle may not shift properly through all of the gears.

In the event that a wheel speed sensor fails, the ABS, traction control system (TCS) and manufacturer specific stability control system lights will illuminate, informing the driver that the systems are disabled. The vehicle will be more prone to tire slip, and normal driving patterns may need to be adjusted to correct for the loss of computer control. On older vehicle's, the speedometer can be affected, causing illumination of the check engine light as well.

Troubleshooting Cruise Control Issues in a Cadillac 60 Special

When troubleshooting cruise control issues in your Cadillac 60 Special, it's essential to adopt a systematic diagnostic approach. Begin by checking the brake pedal switch, as a mis-adjusted switch can frequently disengage the cruise control. If this seems fine, inspect the fuse; a blown fuse is a common culprit and can be easily replaced. Next, examine the brake light switch, located at the top of the brake pedal arm, as a defective switch can disrupt cruise control functionality. If these components are in working order, turn your attention to the throttle control system, as any issues here can also affect cruise control operation. Additionally, ensure that the ABS system is functioning correctly, as problems in this area can impact cruise control as well. For older models, don't overlook the vacuum line; a broken line can lead to cruise control failure, so inspect and replace any damaged sections. If you're dealing with the Super Cruise feature, check for the Super Cruise symbol and follow the prompts if it turns off unexpectedly. By methodically addressing these potential issues, you can effectively diagnose and resolve cruise control problems in your Cadillac 60 Special.

What Are the Common Problems with Cruise Control in a Cadillac 60 Special?

When dealing with cruise control issues in a Cadillac 60 Special, it's essential to understand the common problems that can arise. One frequent culprit is a mis-adjusted brake pedal switch, which can disrupt the cruise control's functionality by cutting it off unexpectedly. If you notice that the cruise control disengages every time you attempt to activate it, checking the switch's adjustment should be your first step. Additionally, sudden failures of the cruise control system can lead to rapid deceleration, posing safety risks. This can happen without warning, so it's crucial to remain attentive while driving. If the cruise control becomes entirely unresponsive, despite your efforts to reset it, this may indicate a deeper issue, such as a faulty switch or a malfunctioning module. Regular maintenance and prompt troubleshooting are vital to ensure that your cruise control system operates smoothly, allowing for a safer and more enjoyable driving experience. By being proactive and addressing these common problems, you can maintain the functionality of your Cadillac 60 Special's cruise control system.

Why is the Cruise Control Not Working in a Cadillac 60 Special?

When the cruise control in your Cadillac 60 Special is not functioning, it is crucial to address the issue promptly, as neglecting it can lead to safety risks and further vehicle damage. A blown fuse is often the first culprit to check, as it can completely disable the cruise control system. Additionally, a defective brake pedal switch can prevent the cruise control from engaging, as this switch is integral to the system's operation. Problems with the throttle control system, including the throttle sensor, can also disrupt cruise control functionality, making it essential to inspect these components. Furthermore, issues with the Anti-lock Braking System (ABS) can interfere with cruise control, highlighting the interconnected nature of vehicle systems. In older models, a broken vacuum line may be the source of the problem, as vacuum leaks can significantly impact performance. By diagnosing these common issues early, you can ensure your vehicle remains safe and reliable on the road, preventing more extensive repairs down the line.

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