P0700
57 owner reports and 46 manufacturer filings across 51 model years from Buick, Cadillac, Chevrolet, Chrysler and others.
Where P0700 shows up
Source: NHTSA manufacturer communications and complaintsA model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.
What it gets filed under
What owners said
Source: NHTSA complaint databaseOwners’ own words, one per nameplate, scrubbed of anything identifying. These are unverified reports filed with NHTSA — they are what was said, not a finding that it was true.
I contacted OnStar, which reported transmission control module-related diagnostic codes P0747 and P0700 and indicated reduced power/transmission malfunction
The diagnostic machine retrieved DTC: U0073, P0700, P25A2, U0101,U0129,U0146, U18D5, U18D7, U2413, U0073-00, U0100-00, U0140-00, U0151-00, U026A-00, U0420-00 and U0100
The dealer diagnosed transmission trouble codes P0700 and P0752 and determined that an internal valve body solenoid had failed
The dealer found the transmission fluid was burned and diagnosed transmission trouble codes P0797 and P0700, indicating an internal transmission problem
( P0700 TCM, P0747 Pressure Control Solenoid A is stuck in the "ON" position, C116b faulty brake pad wear sensor.) I called GMC of Palmer and GMC OnStar advisor, both informed me that the truck needed to be towed
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names P0700. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.
- A25-0172026-06-23 · Engine
- Service Bulletin - A slight engine vibration and the Malfunction Indicator Lamp (MIL) is ON with DTC P0700 (Transmission Control System MIL Request) set during start-up in below freezing temperatures.
- A25-0442025-07-08 · Engine
- Service Bulletin - The engine runs rough and makes a rattling noise, accompanied by DTC P0134 or P0135 due to a possible fuel injector leak causing a rich air/fuel (A/F) mixture that fouls the spark plug(s) and causing the PCM to misread the A/F sensor heater resistance. Other DTCs may also include: P0700, P0300, P219C, P219D, P219E, P219F, P0172.
- 06-93-252025-02-10 · Power Train
- "This bulletin announces availability of reprograming files for the Engine Control Module (ECM) developed to address the following Diagnostic Trouble Codes (DTC): • P0890: TCM Power Relay Sense Circuit Low • P0700: Transmission Control System (MIL Resquest)"
- A25-0172025-01-27 · Engine
- Service Bulletin - A slight engine vibration and the Malfunction Indicator Lamp (MIL) is ON with DTC P0700 (Transmission Control System MIL Request) set during start-up in below freezing temperatures.
- 23-NA-2102024-09-11 · Power Train
- This bulletin provides a procedure to perform a diagnostic check to verify if DTCs P18AE and/or P0700 Set returns when reset and to clear the codes and validate code does not set again.
- 24-NA-1722024-08-27 · Electrical System
- This technical bulletin provides a procedure to correct the condition of Intermittent No Power or Vehicle will Hesitate DTC P0700, P0EFF, U1611, U0401.
What P0700 means
Source: SAE J2012 / OBD-IIThe transmission control module is asking for the warning light — the real code is stored on its side.
A stored code names the test that failed, never the part that caused it. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.
Common questions about P0700
Source: NHTSA files and the OBD-II standardCan I keep driving with P0700 stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light generally means the fault was logged and the vehicle is in a reduced-risk mode; a flashing light means stop soon, because a misfiring engine can destroy a catalytic converter in minutes. The safe read of this page is the mileage and the components, not permission.
Does a code mean the car is recalled?
No. Recalls are filed by campaign and matched by VIN, and none of them are triggered by a scan tool. If you want to know whether an open recall applies to one specific vehicle, check the VIN at nhtsa.gov/recalls — that is the only source that settles it.
Why do the counts here differ from other sites?
Because these are not estimates. Every number on this page is a count of documents in NHTSA's own files: manufacturer communications that name the code in their filed summary, and owner complaints that name it in the narrative. We do not model, weight or extrapolate them.
Will clearing the code fix it?
Clearing turns the light off and erases the freeze-frame data a technician would have used to work out what happened. If the condition is still there the code returns, usually within a few drive cycles, and the diagnosis now starts from less information than before.