Pulling away from a stop in your 2020 Forester should be smooth. When the Lineartronic CVT hesitates, delays, or jerks during initial acceleration, accompanied by P0700, the transmission control system has detected a problem worth investigating.
What P0700 Means
The P0700 code is a generic transmission fault indicator. It tells you the Transmission Control Module logged an issue but doesn't specify what. Additional manufacturer-specific codes stored in the TCM reveal the actual problem.
Hesitation from Stop
The Lineartronic CVT uses a torque converter for initial engagement, then a chain-and-pulley system. Hesitation during the transition from torque converter to CVT operation is a common complaint point.
Symptoms
- Delay when pressing accelerator from stop
- RPM rises before vehicle moves
- Jerk or surge when it finally engages
- Check engine light with P0700
- May be worse when cold
Common Causes
- Low CVT fluid - Inadequate for proper engagement
- Degraded fluid - Lost friction modifier properties
- Valve body issues - Hydraulic control problems
- Software calibration - May need updating
- Torque converter issue - Initial engagement problem
Diagnostic Steps
- Pull all transmission codes with Subaru-capable scanner
- Check CVT fluid level and condition
- Verify software is current version
- Check for Technical Service Bulletins
- Monitor transmission data during hesitation
What Often Helps
- CVT fluid service - Fresh fluid often improves engagement
- Software update - TCM recalibration
- Valve body service - If codes point to specific solenoids
Repair Costs
- CVT fluid service: $200-$400
- TCM software update: $100-$200
- Valve body service: $800-$1,500
- CVT replacement: $5,000-$8,000
Subaru extended CVT warranty to 10 years/100,000 miles on some models.