my Ram 1500 DT (2019-Present) transmission temperature light is on what should I do

Ram 1500 DT (2019-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

598 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 overheating in Ram 1500 DT (2019-Present). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before opening the transmission or radiator.

Symptoms

•Transmission temperature warning light illuminated on the dashboard
•Slipping or delayed shifting during gear changes
•Unusual noise from the transmission (grinding or whining)
•Burning smell from the transmission area
•Fluid leakage under the vehicle
•Poor acceleration or loss of power

Diagnostic Steps

1
Check the transmission fluid level using the dipstick while ensuring the vehicle is on a level surface.
2
Inspect the transmission fluid condition; it should be bright red and clear, not dark brown or burnt.
3
Scan the vehicle's onboard computer for any diagnostic trouble codes (DTCs) related to the transmission using an OBD-II scanner.
4
Visually inspect the transmission cooler lines for leaks or damage.
5
Check for any obstructions or damage to the transmission cooling system (radiator or external cooler).
6
Monitor the ambient temperature and driving conditions to determine if overheating is due to excessive load or towing.

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
•Funnel
•Clean rag
•Drain pan
•Transmission fluid pump
•Wrench set
•Hose clamps
•Pliers

Parts Required

•Transmission fluid (as specified in owner’s manual)
•Transmission filter (if applicable)
•Transmission pan gasket (if applicable)
•Transmission cooler lines (if damaged)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check the transmission fluid level using the dipstick while ensuring the vehicle is on a level surface.
2
Inspect the transmission fluid condition; it should be bright red and clear, not dark brown or burnt.
3
Scan the vehicle's onboard computer for any diagnostic trouble codes (DTCs) related to the transmission using an OBD-II scanner.
4
Visually inspect the transmission cooler lines for leaks or damage.
5
Check for any obstructions or damage to the transmission cooling system (radiator or external cooler).
6
Monitor the ambient temperature and driving conditions to determine if overheating is due to excessive load or towing.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the battery's negative terminal to ensure safety.

2. Check and Top Off Transmission Fluid

Tools Required: Funnel, clean rag
Remove the transmission dipstick and wipe it clean.
Reinsert the dipstick fully and remove it again to check the fluid level.
If low, use a funnel to add the appropriate type of transmission fluid (check owner’s manual for specifications).
Start the engine and let it idle; recheck the fluid level and add as necessary.

3. Replace Transmission Fluid (if needed)

Tools Required: Socket set, transmission fluid pump, new transmission fluid (per manufacturer specs), drain pan
Place a drain pan under the transmission pan.
Remove the transmission pan bolts and carefully lower the pan, allowing old fluid to drain completely.
Inspect the transmission filter; replace it if it’s clogged or dirty.
Clean the pan and replace the gasket before reinstalling.
Refill the transmission with new fluid through the dipstick tube.

4. Inspect and Repair Cooling System

Tools Required: Wrench set, hose clamps, Pliers
Inspect transmission cooler lines for leaks; replace any damaged lines.
Check the radiator or external cooler for blockages; clean as necessary.

5. Reconnect Battery

Reconnect the battery’s negative terminal securely.