What does code P0700 mean on a Chevrolet and is it safe to drive?
P0700: Transmission Control System Malfunction. Here's what it means on your Chevrolet, what usually causes it, what repairs typically cost, and how safe it is to keep driving.
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What this code means
Generic code indicating the TCM has detected a problem. Specific transmission codes (P07xx) will usually be present.
Common causes for your Chevrolet
- Various transmission electrical or hydraulic faults
- Low or dirty fluid
- Solenoid or sensor failure
Symptoms
- Check Engine Light
- Transmission slipping, harsh shifts
- Limp mode possible
Typical fixes
- Read transmission-specific codes
- Service or replace transmission fluid
- Replace solenoids/sensors as diagnosed
Repair cost range
For a Chevrolet, repairs for P0700 often fall between $100 and $3000, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.
Known issues on Chevrolet
GM P0700 on 6L80 and 6T40 transmissions often pairs with P0756 or P0796 (shift solenoid performance). Fluid condition is essential to check first—GM requires Dexron VI and off-spec fluid causes solenoid sticking.
Most commonly affected models
Silverado 2014–2019Equinox 2010–2017Malibu 2013–2016