Toyota Highlander Third Generation (2014-2019) won't go into gear after stopping what to do

Toyota Highlander Third Generation (2014-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

542 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix transmission issues in Toyota Highlander (2014-2019) that won't engage after stopping. Step-by-step guide included.

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow the vehicle to cool before handling any components related to the transmission.

Symptoms

•Transmission does not engage when shifting from Park to Drive or Reverse
•Engine revs without acceleration when in gear
•Warning lights illuminated on the dashboard
•Fluid leaks under the vehicle
•Strange noises from the transmission area

Diagnostic Steps

1
Scan the vehicle's onboard computer for any stored error codes using an OBD-II scanner.
2
Check the transmission fluid level and condition, ensuring it is at the correct level and not burnt.
3
Inspect the transmission linkage for any misalignments or damage.
4
Test the brake switch to ensure it is functioning properly, as it affects the transmission's ability to engage.
5
Evaluate the battery voltage and connections, ensuring they are secure and within specifications.
6
Inspect for any visible leaks or physical damage to the transmission casing or components.

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
•Socket set
•Fluid catch pan
•Wrench set
•Multimeter

Parts Required

•Toyota ATF WS transmission fluid
•Brake switch (if replacement is necessary)

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Diagnostic Steps

1
Scan the vehicle's onboard computer for any stored error codes using an OBD-II scanner.
2
Check the transmission fluid level and condition, ensuring it is at the correct level and not burnt.
3
Inspect the transmission linkage for any misalignments or damage.
4
Test the brake switch to ensure it is functioning properly, as it affects the transmission's ability to engage.
5
Evaluate the battery voltage and connections, ensuring they are secure and within specifications.
6
Inspect for any visible leaks or physical damage to the transmission casing or components.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is on a level surface and securely lifted if required.
Disconnect the battery to avoid electrical shorts during repairs.

2. Check and Replace Transmission Fluid

Locate the transmission dipstick or fill plug.
Remove the dipstick and assess fluid level and condition.
If fluid is low or burnt, drain the old fluid from the transmission pan.
- Tools required: Socket set, fluid catch pan.
Replace with the manufacturer-recommended transmission fluid type.
- Fluid type: Toyota ATF WS (or equivalent).
Recheck the fluid level with the dipstick and add more if necessary.

3. Inspect and Adjust Transmission Linkage

Locate the transmission linkage on the side of the transmission.
Visually inspect for any bent or damaged components.
If necessary, adjust the linkage according to the manufacturer's specifications.
- Tools required: Wrench set, screwdriver.
Ensure that all connections are tight and secure.

4. Test and Replace Brake Switch (if necessary)

Locate the brake switch, usually near the brake pedal assembly.
Disconnect the electrical connector and use a multimeter to check for continuity when the pedal is pressed.
Replace the brake switch if it does not function correctly.
- Tools required: Socket set, multimeter, replacement brake switch.

5. Reconnect Battery and Test

Reconnect the battery terminals securely.
Start the vehicle and attempt to shift into gear to verify functionality.