how to fix the cruise control not working in my Toyota Highlander Third Generation (2014-2019)

Toyota Highlander Third Generation (2014-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

568 words

Problem Statement

Learn how to diagnose and fix cruise control issues in Toyota Highlander (2014-2019). Step-by-step guide with symptoms, diagnostics, and repair instructions.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent shock or short circuits.

Symptoms

•Cruise control indicator light not illuminating on the dashboard
•Inability to engage cruise control when the button is pressed
•Cruise control disengaging unexpectedly while driving
•No response from the accelerator pedal when cruise control is activated
•Check engine light illuminated

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any related issues.
2
Inspect the cruise control switch for physical damage or wear.
3
Check the brake switch operation to ensure it is functioning correctly.
4
Verify the status of the vehicle speed sensor output.
5
Examine the fuses related to the cruise control system for continuity.
6
Inspect wiring and connectors in the cruise control system for signs of damage or corrosion.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Phillips screwdriver
•Torx screwdriver
•Fuse puller or needle-nose pliers
•Multimeter

Parts Required

•Brake switch
•Cruise control switch
•Vehicle speed sensor (if necessary)
•Replacement fuses (if applicable)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any related issues.
2
Inspect the cruise control switch for physical damage or wear.
3
Check the brake switch operation to ensure it is functioning correctly.
4
Verify the status of the vehicle speed sensor output.
5
Examine the fuses related to the cruise control system for continuity.
6
Inspect wiring and connectors in the cruise control system for signs of damage or corrosion.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is turned off.
Disconnect the battery to prevent any electrical shorts during the repair.

2. Inspect and Replace the Brake Switch

Tools Required: Phillips screwdriver, replacement brake switch.
Locate the brake switch, typically mounted above the brake pedal.
Remove the mounting screws using a Phillips screwdriver.
Disconnect the electrical connector from the brake switch.
Install the new brake switch by reversing the removal steps and ensuring it is properly aligned.

3. Check and Replace the Cruise Control Switch

Tools Required: Torx screwdriver, replacement cruise control switch.
Remove the steering wheel cover using a Torx screwdriver to access the cruise control switch.
Disconnect the wiring harness from the old cruise control switch.
Install the new cruise control switch by connecting the wiring harness and securing it with screws.
Reassemble the steering wheel cover.

4. Inspect and Replace Fuses

Tools Required: Fuse puller or needle-nose pliers.
Locate the fuse box (refer to the owner's manual for exact location).
Identify and check the cruise control fuse for continuity.
If blown, replace it with a fuse of the same amperage rating.

5. Test the Vehicle Speed Sensor

Tools Required: Multimeter, replacement vehicle speed sensor (if necessary).
Locate the vehicle speed sensor, usually on the transmission.
Disconnect the wiring harness and test voltage output with a multimeter.
If the readings are outside the acceptable range, replace the vehicle speed sensor.