P0700 on Chevrolet
Transmission Control System Malfunction
P0700 on Chevrolet vehicles indicates transmission control system malfunction. Au7o has documented this code across 12 Chevrolet models — most commonly on Blazer, C/K 1500, Camaro. 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. Typical repair costs on Chevrolet range from $200 to $4,500, depending on the specific model and root cause.
Common Causes of P0700
- •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
P0700 on Chevrolet by Model
Chevrolet Blazer(1 issue)
- 9-Speed Automatic Transmission Shudder2019-2024
The 2019+ Blazer with the 9-speed automatic transmission (9T50/9T65) develops a shudder during acceleration from a stop, particularly between 1st and 2nd gear. GM bulletin PIP5608J addresses TCC shudder/surge issues. The root cause involves excess lubrication on internal parts contaminating the transmission fluid. Some owners require torque converter or full transmission replacement.
Chevrolet C/K 1500(1 issue)
- 4L60E Automatic Transmission Failure1993-1998
The 4L60E transmission is known for 3-4 clutch pack burnup, sun shell failure, and worn input drum. These trucks were often used for towing which accelerated wear. The transmission develops slipping in 3rd and 4th gears.
Chevrolet Camaro(1 issue)
- 10-Speed Transmission Wheel Lock-Up (10L80)2020-2022
Vehicles equipped with the 10-speed automatic transmission may experience momentary wheel lock-up when shifting from 8th to 5th gear. A transmission control valve is susceptible to premature wear, leading to pressure loss and potential wheel lock-up.
Chevrolet Lumina(1 issue)
- 4T60E Automatic Transmission Failure1995-2001
The 4T60E transmission in the Lumina develops shifting problems, particularly the second clutch reaction plates that were improperly stamped in some production runs. The transmission can lose 1st or 4th gear, develop harsh shifts, or strip planetary gears causing complete loss of drive. GM issued a campaign for certain 1995 models with defective clutch plates.
Chevrolet Malibu(1 issue)
- 9-Speed Automatic Transmission Shudder and Harsh Shifting2016-2024
The 2016+ Malibu with the 1.5T engine uses a GM/Ford co-developed 9-speed automatic (9T50) that can exhibit shudder, harsh shifts, and delayed engagement. The 9-speed is sensitive to fluid condition and requires proper DEXRON HP fluid. GM has released multiple TCM calibration updates. The 2.0T Malibu uses a different 9-speed (9T65) with similar but less frequent issues.
Chevrolet Silverado 2500HD(1 issue)
- Allison 1000 Transmission Torque Converter Shudder2001-2020
Allison 1000 automatic develops torque converter shudder during light throttle lockup. More common when towing or after transmission fluid degrades.
Chevrolet Silverado 3500HD(1 issue)
- Allison 1000 Transmission TCM Internal Failure2006-2019
The Transmission Control Module (TCM) mounted internally on the Allison 1000 transmission fails due to heat exposure and vibration. The internal TCM is bathed in transmission fluid and subjected to extreme temperatures. When it fails, the transmission goes into limp mode or refuses to shift from 3rd gear.
Chevrolet Sonic(1 issue)
- 6-Speed Automatic Transmission Turbine Shaft Fracture2012-2015
Chevrolet recalled 21,567 Sonics from 2012-2014 for a tendency of the turbine shaft to fracture inside the 6-speed automatic transmission. The turbine shaft transfers energy from the engine to the wheels, and when it fractures, the transmission fails completely. The problem typically appears past 70,000 miles and usually requires complete transmission replacement. The 2012-2015 models are most commonly affected.
Chevrolet Spark(1 issue)
- CVT Transmission Shudder and Failure2016-2022
The Spark's CVT (continuously variable transmission) develops shuddering during acceleration, particularly between 20-40 mph. The transmission can eventually fail completely, leaving the vehicle unable to move. The issue is linked to belt wear and pulley degradation.
Chevrolet Tahoe(1 issue)
- 10L80 10-Speed Transmission Harsh Shifting2021-2025
The 2021+ Tahoe uses the GM 10L80 10-speed with reports of harsh shifting, delayed engagement, and shift hunting between gears. GM has released multiple TCM calibration updates. The transmission requires DEXRON ULV fluid (NOT DEXRON HP). Most shift quality issues are resolved with the latest software calibration.
Chevrolet Trailblazer(1 issue)
- CVT Transmission Shudder and Hesitation2021-2026
The Trailblazer with the 1.2L turbo and CVT automatic develops shudder during light acceleration and hesitation from stops. Some owners report a rubber-band feel typical of CVT calibration issues.
Chevrolet Trax(1 issue)
- 6-Speed Automatic Rough Shifting and Delayed Engagement2015-2022
The 6T40 automatic transmission exhibits rough or harsh shifts, delayed engagement from Park or Reverse, and occasional lurching. The valve body is the primary culprit, with wear on the pressure regulator bore causing erratic shift quality. Cold weather operation tends to make the issue more pronounced.
Looking for P0700 on a different make?
View P0700 across all makes →Frequently Asked Questions
What does P0700 mean on Chevrolet?▼
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 Chevrolet specifically, this code is documented across 12 models.
What causes P0700 on Chevrolet vehicles?▼
Common causes on Chevrolet: 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. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0700 on a Chevrolet?▼
Repair costs on Chevrolet range from $200 to $4,500, depending on the specific model and root cause.
Which Chevrolet models have P0700 documented?▼
Au7o has documented P0700 on 12 Chevrolet models: Blazer, C/K 1500, Camaro, Lumina, Malibu, Silverado 2500HD, Silverado 3500HD, Sonic, Spark, Tahoe, Trailblazer, Trax.