P0700 on Saturn: How to Diagnose & Fix
Transmission Control System Malfunction
1 Saturn model · 1 documented issue · 1 critical · $1,200-$4,500 repair
P0700 on Saturn by model: symptoms, diagnosis and fix
Early Saturn Vue (2002-2005) was offered with the GM VT25 (VTi) continuously-variable transmission paired with the 2.2L Ecotec. The CVT was infamously unreliable — failure rates so high that GM extended warranty to 5 years/75,000 miles, and many independents won't touch them. Symptoms: belt slip noise, surge under acceleration, eventual no-drive.
Common Symptoms
- CVT slip noise
- surge under acceleration
- shuddering
- no drive
- limp mode
How to Fix
If still under the extended warranty, get it documented. If out of warranty, the practical options are: (1) used VTi CVT swap (~$1,200-$2,500 with risky reliability), (2) used 5-speed manual conversion ($1,500-$3,000 with parts hunt), or (3) part out / sell the vehicle. Aamco / GM dealers historically offered swap-with-Aisin-5-speed conversions but parts are hard to source.
P0700 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0700 mean on a Saturn?
P0700 stands for "Transmission Control System Malfunction." P0700 is a general code indicating the transmission control module (TCM) has detected a fault somewhere in the transmission control system and has requested the check engine light be turned on. By itself it doesn't pinpoint the problem — it's an 'umbrella' code that tells you to look for additional, more specific transmission codes stored alongside it. The actual fault could be electrical, a sensor, a solenoid, or an internal transmission issue. You may notice harsh or delayed shifts, slipping, or the transmission going into a protective 'limp' mode. On Saturn it is documented across 1 model: Vue.
What are the most common causes of P0700?
The most common causes of P0700 are: Stored companion transmission codes pointing to the real fault, Faulty shift solenoid or pressure control solenoid, Low, dirty, or degraded transmission fluid, Faulty transmission speed or input/output sensor, Wiring, connector, or ground problems at the transmission, Failing transmission control module (TCM), Internal transmission mechanical wear or clutch problems, Valve body fault or sticking valves. The specific cause varies by vehicle.
How much does it cost to fix P0700 on a Saturn?
Published repair estimates on Saturn range from $1,200 to $4,500 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0700 on a different make?
View P0700 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.