Will not shift out of first gear

Hi and thanks for using 2CarPros.

If it won't shift from first, it can be many different things. For example, a bad speed sensor or even a plugged cooler. However, other than guessing what it is, you really need to have the computer scanned to identify diagnostic trouble codes. Here is a quick video that shows how it is done:

https://youtu.be/YV3TRZwer8k

Also, check to make sure the fluid is clean and full. Do this first and let me know what you find. Here are the directions for checking it.

1. Start the engine and operate the vehicle for fifteen minutes or until the transmission fluid reaches an operating temperature of 82-93°C (1 80-200°F).
2. Park the vehicle on a level surface. Apply the parking brake and block the wheels.
3. While the engine is idling and with your foot on the brake pedal, move the shift lever through each gear range, ending in Park.
4. Check the fluid level, color and condition (transmission fluid conditions are diagnosed by color). The fluid will be higher on the fluid level indicator when the transmission is cold. Conversely, the fluid level will drop when it is checked at operating temperature.
5. If it is necessary to add fluid, DEXRON-III Automatic Transmission Fluid is preferred. DEXRON-III is an acceptable substitute.

Take care,
Joe