Is it safe to drive with a P0740 code?

Severity is medium. Address P0740 sooner rather than later — driving with an active check engine light can worsen the problem or void emissions warranties.

How much does it cost to fix P0740?

Repair costs for P0740 typically range from $100 to $1500 in the US, depending on the underlying cause. The most common fix is: Low fluid.

What are the symptoms of P0740?

CEL. Shudder on cruise. Fuel economy drop.

Check Engine Code

P0740

Torque Converter Clutch Circuit Malfunction

Severity: medium DIY difficulty: 3/5 Typical cost: $100–$1500

What P0740 means

Umbrella code for TCC circuit issues; often accompanied by P0741, P0742, or P0743.

Symptoms

CEL
Shudder on cruise
Fuel economy drop

Likely causes (most common first)

Low fluid
Failed TCC solenoid
Wiring issue

Can I keep driving?

Medium — drivable but fix soon

Typical repair cost

DIY fixes can start near $100 (parts only). Shop repairs for P0740 typically run up to $1500 depending on the underlying cause and vehicle. Start with the most common cause — Low fluid — before throwing parts at it.

Related codes

P0741P0742P0743

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