Diagnostic Guide

Transmission Won't Shift

Your transmission is stuck in one gear or won't shift properly.

Quick Assessment

Stop driving and seek immediate service. Continued driving may cause severe damage.

Estimated repair cost:

$200 - $4,000

Immediate

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Diagnostic Breakdown

Symptoms & Causes

Symptoms to Watch For

  • 1
    Vehicle stuck in one gear
  • 2
    Won't shift into reverse
  • 3
    Won't shift into drive
  • 4
    Skips gears when shifting
  • 5
    Delayed response when shifting
  • 6
    Transmission warning light on
  • 7
    Manual shift mode not working

Common Causes

  • Low or contaminated transmission fluid
  • Failed shift solenoids
  • Damaged shift linkage
  • Valve body problems
  • Transmission control module failure
  • Worn clutches or bands
  • Failed sensors

Understanding Transmission Won't Shift

When your transmission won't shift, it may be stuck in one gear (sometimes called "limp mode"), refuse to go into a specific gear, or have difficulty shifting between gears. This can make your vehicle undrivable or severely limit its capability. The cause could be as simple as low fluid or as complex as a failed valve body or electronic control issue.

Repair Options

Depending on the cause and severity, here are the typical repair approaches for transmission won't shift:

  • Shift linkage adjustment or repair
  • Solenoid replacement
  • Valve body repair or replacement
  • TCM reprogramming or replacement
  • Sensor replacement
  • Transmission rebuild

Cost Factors

The repair cost for transmission won't shift ($200 - $4,000) depends on several factors:

The root cause of the problem
Your vehicle's make and model
Repair, rebuild, or replacement needed
Parts required (OEM vs aftermarket)
Labor rates in your area

What Happens If You Ignore It?

Transmission Won't Shift is a serious issue that can worsen rapidly. Ignoring it may lead to complete transmission failure, leaving you stranded and facing much higher repair costs.

FAQ

Transmission Won't Shift FAQ

This is often "limp mode" - a safety feature that protects your transmission from further damage when a problem is detected. It typically requires professional diagnosis to identify and fix the underlying issue.

Yes, a weak battery or alternator can cause erratic transmission behavior in modern vehicles since the transmission control module needs consistent voltage to function properly.

If your vehicle is in limp mode (stuck in one gear), you may be able to drive slowly to a repair shop. However, if the transmission is completely non-functional, have the vehicle towed to avoid further damage.

Next Steps for Transmission Won't Shift

Ready to get your transmission fixed? Here's what to do next.

1

Get a Free Quote

Fill out our quick form to receive a no-obligation quote from certified specialists.

2

Schedule Diagnosis

Book a free or low-cost diagnostic appointment at a convenient location near you.

3

Get It Fixed

Our experts will diagnose the issue and provide repair options that fit your budget.

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Disclaimer: The information provided on this page is for educational purposes only and should not be considered a professional diagnosis. Symptoms, causes, and repair costs are general guidelines based on industry data and may vary based on your specific vehicle and situation. Always consult with a certified transmission specialist for an accurate diagnosis and repair recommendation.