Thinking about buying a used Toyota Sienta (2003–2023) in New Zealand? We've documented 16 known faults for this model spanning suspension, transmission, engine, and electrical. Each researched and verified before it's published. The most serious issues here are rated critical. Two are set out in full below — the rest, with the symptoms, repair costs and checks for each, are free with an account.
16
Documented faults
Critical
Most serious
$300–$1,200
Typical repair
6
Systems covered
Known Toyota Sienta faults
Every fault below is documented specifically for this model — researched and verified before it’s published.
01Front lower control arm ball joint crack recall (shared with Yaris/Aqua)
CriticalRareSuspension $400–$1,200 to fix
In June 2023 Toyota Japan recalled Yaris, Aqua and XP210 Sienta models because front suspension lower arms were manufactured incorrectly at the ball joint mount and can crack. Repeated driving on rough roads grows the crack until, in the worst case, the arm breaks and the ball joint separates, causing loss of control. Affected cars get replacement lower arms free in Japan, but a fresh import may have left Japan before the work was done, so completion must be checked against the chassis number.
Symptoms to notice
Clunk or knock from the front suspension over bumps
Vague or wandering steering
Uneven front tyre wear
Visible crack at the lower arm ball joint mount (on a hoist)
What to check
Ask the dealer/importer for proof the June 2023 lower-arm recall was completed in Japan, or have a Toyota dealer check the chassis number. During a pre-purchase inspection ask the mechanic to specifically examine both front lower control arms around the ball joint attachment for cracks. Listen for front-end knocks on a rough-road test drive.
Where to look: Front suspension lower control arms, one each side, visible from under the front of the car
Ask the seller
“Has the front lower arm recall (Toyota Japan, June 2023) been carried out on this car?”
“Can you provide the Japanese recall completion record with the export paperwork?”
02Power sliding door failure - release motor, cable and control unit
MinorCommonElectrical $300–$1,500 to fix
Both the XP80 and XP170 Sienta use twin electric sliding rear doors, and the door lock release motor, drive cables and control attachment are known wear items on high-km examples. Japanese workshops document doors that stop mid-travel, re-close on their own, or need repeated handle pulls, traced to a dead release motor or worn cable requiring replacement of the slide door control attachment. Repairs are fiddly and parts are dealer-only or used-import, so a fully dead door is not a cheap fix. A door that works manually but not electrically is the classic half-failed state.
Symptoms to notice
Sliding door stops partway then closes again
Grinding or 'gagging' noise as the door moves
Door works with a firm manual pull but not on the button
One door noticeably slower than the other
Door won't latch fully on the first attempt
What to check
Cycle BOTH sliding doors several times each from the dash button, the key fob and the door handle. Watch that each door opens fully, closes fully and latches without hesitation. Listen for grinding or clicking. Look at the exposed cable in the lower door track for fraying or slack. Test with the car on a slight slope too, as weak motors show up first under load.
Where to look: Both rear sliding doors - motor and cable mechanism inside the door and along the lower door track
Ask the seller
“Do both power doors open and close from the remote every time?”
“Has either sliding door motor or cable ever been replaced?”
“Does the door ever bounce back when closing?”
TransmissionMajor
TransmissionMajor
EngineMajor
ElectricalMajor
Body & RustMajor
EngineMajor
EngineMajor
Body & RustMajor
SuspensionMajor
BrakesMajor
EngineMinor
ElectricalMinor
ElectricalMinor
EngineMinor
14 more documented faults on the Toyota Sienta
Symptoms, what to check, where to look and what to ask the seller — for every fault above. Free with an account, no card needed. One account covers one vehicle, so make it the car you’re actually looking at.
This page covers the model. Enter the plate of the actual car you’re looking at and see its year, engine, safety rating and register flags — free, no account needed.
Like any used car, it depends on the specific example and its service history. Across the 16 documented faults for the Toyota Sienta, the recurring problem areas are suspension, transmission, and engine. A Toyota Sienta with a full service history and no signs of the issues listed on this page can be a sound buy but each one needs to be checked individually before you commit.
What are the most common problems with a used Toyota Sienta?
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We've catalogued 16 known faults for the Toyota Sienta, covering suspension, transmission, and engine. Two are written out in full on this page. The rest — with the symptoms to notice, what to inspect, and typical repair costs for each — are free once you create an account.
How much do repairs cost on a Toyota Sienta?
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Most single repairs on the Toyota Sienta fall between $300–$1,200 at NZ independent-workshop rates. Some of the 16 documented faults cost less and a few cost considerably more, and no one car needs them all. Knowing which ones to look for before you view is what lets you negotiate the price down or walk away.
Should I get a pre-purchase inspection on a Toyota Sienta?
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Yes. A Toyota Sienta inspection focused on its known weak points is the single best way to avoid an expensive mistake. KickTyres gives you a guided, model-specific inspection plus a market valuation and negotiation figure for $17.90 far less than the cost of missing one of the faults on this page.