Fault Code Lookup › Powertrain codes › P171D
P171D Powertrain · manufacturer code
P171D fault code: what 3 owners reported
P171D is a manufacturer-specific powertrain code (engine, transmission, fuel and emissions), so its exact definition belongs to the carmaker and is not in the generic OBD-II list. What it meant in practice is below, from 3 complaints owners filed with NHTSA. Updated November 9, 2026.
- 3owner reports
- 3car models
- 0mention a crash
- 0mention a fire
- 2018–2018model years
Which cars get code P171D?
Every model whose owners mentioned P171D in a complaint, most reports first. Each year opens that car's full problem report. Popular models collect more reports because more of them are on the road.
Where does P171D show up?
By brand
- Chevrolet2
- GMC1
Component the owner filed it under
Is there a recall for P171D?
The others concern the component owners file this code under (Power Train) on the same cars; they may or may not relate to the code. Recall repairs are free; check your VIN at nhtsa.gov/recalls.
Power Train: Automatic Transmission General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse and GMC Terrain, 2018 Chevrolet Malibu, 2019-2020 Buick Encore, Buick Enclave, Cadillac XT4, Chevrolet Blazer and GMC Acadia, and 2020 Cadillac XT6 vehicles. The…
2018 Chevrolet Equinox, 2018 Chevrolet Malibu, 2018 GMC Terrain. Full risk and remedy on each car's report.
Power Train: Driveline: Driveshaft General Motors LLC (GM) is recalling certain 2018 Chevrolet Equinox and GMC Terrain vehicles and 2017-2018 GMC Acadia vehicles. The right front intermediate driveshaft may fracture and separate while driving.
2018 Chevrolet Equinox, 2018 GMC Terrain. Full risk and remedy on each car's report.
What happened when owners saw P171D?
3 of the 3 reports, spread across the models above, as the owners wrote them. NHTSA removes names and VINs; long reports are trimmed. CarHooq has not verified individual claims.
The car had a engine code of P171d my safety and others was put at risk because of the vehicle malfunction while not able to drive after the light turn green or keeping maintaining a searching speed. The engine code was confirm at the dealership while getting serviced. The engine light up here, two days before going to the dealership to get it serviced.
…I took the car to Auto Zone where they were able to run the diagnostic that came back with the code, P171D Transmission Surge Accumulator System Performance. This took place twice in one week, with the dealership fixing the issue on Tuesday and it failing again on Saturday (after the car sat idle for 3 days, while I was on vacation).
…Codes P0700, P171D, And P187D all appear on my device. I then looked up recalls and my VIN wasn't confirmed.. but I am certain it is the same issue . You do have a open recall for this very particular issue for my particular model . I love my car and GMC. Please remedy this situation and have me driving safely and free minded again and soon ! Please reach back with any feedback as soon as possible. Thanks !
P171D: questions drivers ask
What does code P171D mean?
P171D is a manufacturer-specific powertrain code (engine, transmission, fuel and emissions), so its exact definition depends on the carmaker and is not in the generic OBD-II list. 3 owners reported it to NHTSA, most often for the Chevrolet Equinox (1), Chevrolet Malibu (1), GMC Terrain (1); their reports describe what happened.
Which cars get code P171D most often?
In NHTSA owner complaints, P171D is mentioned most for the Chevrolet Equinox (1), Chevrolet Malibu (1), GMC Terrain (1), across 3 models and model years 2018 to 2018. Popular models collect more reports because more of them are on the road.
Is there a recall for code P171D?
No NHTSA recall text names P171D directly. 2 recalls on the cars that report this code concern the same component owners name most (Power Train); they may or may not relate to the code. Check your VIN at nhtsa.gov/recalls.
What should I do if my car shows P171D?
Write down when the code appeared and what the car did (warning lights, loss of power, noises, speed, weather). Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer or independent workshop to read the stored freeze-frame data before anyone clears the code, and keep the repair order. If the car loses power in traffic, stop driving it. CarHooq does not diagnose: these are owner reports and official recall notices, not repair advice.
How this page was made
CarHooq read the text of every owner complaint filed with NHTSA for 19 US and European brands (model years 2012 onwards) and picked out the diagnostic trouble codes owners wrote down. This page lists every mention of P171D. Manufacturer codes have no public standard definition, so CarHooq shows only what owners reported. Nothing here is a diagnosis. More answers: the fault code FAQ. Data: NHTSA Office of Defects Investigation (public domain), retrieved November 9, 2026. How CarHooq reports are made.
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