2011 Captiva, Equinox and Terrain 2.4L: which GM transmission is fitted?
This distinction matters because the same vehicle name can appear with a different transmission when the year, engine or market specification changes.
If you are identifying a transmission before ordering a seal, filter or gasket, start from the specific vehicle rather than the badge alone. See our guide to identifying a GM 6T transmission from vehicle-specific records.
What does GM PI0724B say?
The evidence for this article is GM bulletin PI0724B. In the application information used for our evidence library, the bulletin identifies these stated 2011 applications:
| Model named in PI0724B | Engine | Transmission stated in the source | RPO stated in the source |
|---|---|---|---|
| Captiva | 2.4L LAF | 6T45 | MHC / MH7 |
| Equinox | 2.4L LAF | 6T45 | MHC / MH7 |
| Terrain | 2.4L LAF | 6T45 | MHC / MH7 |
The useful conclusion is narrow and practical:
For the applications stated above, the source points to 6T45 — not to a generic “GM 6T” assumption.
The year, engine and source scope are part of the answer.
Why does the 2.4L LAF detail matter?
Because “2011 Equinox” or “2011 Captiva” by itself is not the complete identification key.
A transmission application is tied to a particular vehicle configuration. The evidence here contains an engine identifier — LAF — and the claim should stay attached to it.
Removing the engine from the statement would make the conclusion broader than the evidence.
That is exactly the kind of fitment shortcut OEProof tries to avoid.
Why is Captiva especially easy to overgeneralize?
“Captiva” is a model name that has been used across different markets and product configurations. Our evidence note for this source therefore carries an explicit scope warning:
keep the model naming exactly as the source gives it; do not broaden Captiva to every market variant.
So this article does not say:
- every 2011 Captiva uses 6T45;
- every Captiva 2.4 uses 6T45;
- every Captiva sold in Russia, Central Asia or another market is represented by this bulletin line.
It says only what the cited GM document supports for the stated application.
For an actual vehicle, confirm the transmission from that vehicle's own identifiers or records before ordering.
Why a 2019 Equinox gives a useful counterexample
The Equinox name itself is not a transmission code.
A separate Chevrolet 2019 Equinox product guide documents different transmissions by engine within that model year:
- 1.5L turbo: Hydra-Matic 6T40;
- 1.6L turbo-diesel: Hydra-Matic 6T45;
- 2.0L turbo: 9T50.
Those 2019 facts belong to a different source and a different model-year scope. We use them here only to illustrate the identification principle:
same model name does not guarantee the same transmission.
For the full 2019 breakdown, see 2019 Equinox transmission by engine.
Does this mean MHC or MH7 always means 6T45?
No universal decoding rule is being claimed here.
PI0724B associates the stated application with 6T45 and the RPO references MHC / MH7 in that document. That is a source-specific identification point.
An RPO code should be read in the context of the relevant GM documentation and the vehicle being checked, not turned into an unlimited cross-model rule.
Can I use this article to choose a specific seal or filter?
Not by itself.
Knowing that a stated vehicle application uses 6T45 narrows the transmission family, but exact parts can still depend on:
- generation or production change;
- component position;
- left/right side where applicable;
- exact OE reference;
- other transmission-specific revisions.
Transmission identification is one verification layer. Exact part fitment is another.
Practical verification workflow
Before ordering a GM 6T part for a Captiva, Equinox or Terrain:
1. Confirm the model year. 2. Confirm the engine, including the engine code when available. 3. Confirm the vehicle's transmission/RPO information from vehicle-specific records. 4. Verify the exact OE number and component function separately. 5. If the application falls outside the source scope used here, do not extend this article's conclusion by analogy.
That workflow is more reliable than matching only the vehicle model name.
What this article does not prove
This article does not establish:
- a universal Captiva transmission map;
- sales history for every country;
- a universal MHC/MH7 decoding table;
- interchangeability between 6T40 and 6T45 parts;
- fitment of any specific seal, gasket or filter.
It establishes one source-backed vehicle/configuration statement and preserves its limits.
FAQ
- Does a 2011 Captiva 2.4 use a 6T45?
- GM PI0724B lists the stated 2011 Captiva 2.4L LAF application with 6T45, RPO MHC / MH7. Do not broaden that line to every Captiva market variant.
- What transmission does a 2011 Equinox 2.4 LAF use in this source?
- PI0724B lists the stated 2011 Equinox 2.4L LAF application with 6T45.
- What transmission does a 2011 Terrain 2.4 LAF use in this source?
- PI0724B lists the stated 2011 Terrain 2.4L LAF application with 6T45.
- Is every Equinox a 6T45?
- No. A 2019 Chevrolet product guide, for example, lists 6T40, 6T45 and 9T50 depending on engine. See the dedicated 2019 Equinox article for that separate scope.
- Can I identify the exact transmission from the model name alone?
- No. Use year, engine and vehicle-specific transmission/RPO evidence. Our GM 6T identification guide explains that workflow.
- Does confirming 6T45 automatically confirm the exact replacement seal?
- No. Exact part fitment still requires part-number, function, position and generation checks.