P0700
Medium SeverityTransmission Control System
Transmission System
What Does P0700 Mean?
The TCM (Transmission Control Module) has detected a fault and sent a message to the ECM. This is a general indicator that transmission-specific codes are stored.
Common Fix
Varies — depends on specific transmission codes
Estimated Cost (DIY)
$50 - $1,000
Symptoms
- ⚠️Check engine light
- ⚠️Transmission warning light
- ⚠️Harsh or delayed shifting
- ⚠️Limp mode
Related Symptoms
Common Causes
How to Diagnose P0700
- 1Check transmission fluid level and condition
- 2Scan for transmission-specific codes (P07xx)
- 3Check wiring to transmission
- 4Service transmission if fluid is dark
OEM Diagnostic Flowchart
Scroll to load technician if/then branches.
Read live data and freeze frame for P0700 to pinpoint the cause before buying parts.
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Related Resources
Repair guides, symptom pages, and wiring diagrams related to P0700.
OEM Manual Evidence
Browse →A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL Denali 2WD V8-6.2L Service Manual | Operation CHARM Operation CHARM : Car...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL 2WD V8-6.0L Service Manual | Operation CHARM Operation CHARM : Car repair...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL 2WD V8-5.3L Service Manual | Operation CHARM Operation CHARM : Car repair...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon Denali 2WD V8-6.2L Service Manual | Operation CHARM Operation CHARM : Car rep...
Exact Repair Workflows
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Open the exact repair flow most commonly associated with P0700 on this vehicle.
Open the exact repair flow most commonly associated with P0700 on this vehicle.
Open the exact repair flow most commonly associated with P0700 on this vehicle.
Open the exact repair flow most commonly associated with P0700 on this vehicle.
Open the exact repair flow most commonly associated with P0700 on this vehicle.
Related Symptoms
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Open the exact vehicle hub for a repair workflow commonly associated with P0700.
Open the exact vehicle hub grounded by OEM manual evidence related to P0700.
Open the exact vehicle hub grounded by OEM manual evidence related to P0700.
Open the exact vehicle hub grounded by OEM manual evidence related to P0700.
Related Codes
Frequently Asked Questions
- Is P0700 always a transmission problem?
- P0700 itself just means the TCM flagged an issue. Scan specifically for transmission codes (P07xx) to identify the actual problem.
- Can low fluid cause P0700?
- Yes — low or degraded transmission fluid is one of the most common causes. Check fluid level and condition first.
Related Repair Guides
If your vehicle has triggered P0700, these DIY repair guides may help: