Plan d’maintenance Buick Envision I (facelift 2018)
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📖Buick Envision I facelift: 9-speed automatic upgrade requiring proactive transmission and AWD servicing

Buick Envision I (facelift 2018) (2018-2020)

The 2018 facelift refreshed the Buick Envision with a sculpted winged grille, reprofiled bumpers, optional hands-free tailgate and, most importantly, GM's new 9-speed automatic transmission on 2.0T models. The 9-speed gearbox noticeably improved fuel economy, acceleration and shift smoothness over the previous 6-speed. Sustaining this comfortable crossover requires methodical Buick Envision maintenance, particularly for its advanced transmission and driveline.

Under the bonnet, the 2.0-litre 2.0T LTG turbo produces 252 hp and a boosted 400 Nm of torque, paired with the smooth 9-speed 9T50 automatic and intelligent Twinster AWD. While overall mechanical maturity improved, direct-injection carbon accumulation and driveline fluid maintenance remain key focus areas.

When inspecting a facelifted Envision, check for seamless upshifts across all nine ratios, verify that the active rear differential operates silently, and test the hands-free tailgate mechanism. A well-tended facelift car is a very smooth, capable and whisper-quiet travel companion.

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Owner notes

The reassuring points, known weak spots and deadlines you should not let slip.

Reassuring points

Reliability
  • 9-speed 9T50 automatic gearbox substantially enhances fuel economy and motorway refinement.
  • Class-leading cabin soundproofing with active noise cancellation and thick laminated glass.
  • Punchy 400 Nm of torque delivering instant throttle response and effortless overtaking.

Chronic weak spots

Keep an eye on
  • 9-speed automatic gearbox: verify latest software calibration and check for smooth cold shifting.
  • Twinster AWD clutch fluid: inspect rear axle for fluid degradation to avoid clutch pack shudder.
  • 2.0T direct-injection intake valves: monitor for carbon buildup causing cold idle roughness.
  • Hands-free powered tailgate: test sensor operation beneath rear bumper for intermittent failures.
  • Front suspension drop links: listen for light rattling over uneven road surfaces.

Critical deadlines

Do not miss
  • Engine oil and filter change: renew every 8,000 to 10,000 km or 12 months using dexos1 Gen 3 oil.
  • 9-speed automatic transmission service: replace transmission fluid every 60,000 to 80,000 km.
  • Twinster rear axle fluid: renew rear differential and clutch fluids every 50,000 km.
  • Brake fluid service: flush hydraulic fluid every 24 months regardless of mileage.

Fréquences d'maintenance recommandées

Service markers for petrol/diesel versions. Exact intervals vary by engine and model year.

Oil change

Every 15 000 km

Every 1 year

Service

Every 15 000 km

Every 1 year

Brake pads

Every 30 000 to 40 000 km

Every 2 years

Poids ou puissance élevés : usure des number platettes accélérée sur certaines versions

Timing belt / chain

Every 100 000 km

Every 5 years

Battery (12 V)

Every 50 000 km

Every 4 years

Powertrains and average consumption

Average consumption from manufacturer data for the versions available in this generation.

Petrol and diesel powertrains

Estimated average budget

Mid-range cost

Servicing a Buick Envision I (facelift 2018) sits slightly above the market average (+16%).

Simple oil change~110
Full service~320
Front brake pads~155
Timing-belt kit~650
Tyres (set of 4)~450

* Indicative estimates for parts and labour.

Frequently asked questions about Buick Envision I (facelift 2018)

What are the common problems on the Envision I (facelift 2018)?
Envision I (facelift 2018) owners should especially watch: 9-speed automatic gearbox: verify latest software calibration and check for smooth cold shifting. Twinster AWD clutch fluid: inspect rear axle for fluid degradation to avoid clutch pack shudder. Garajo includes these watch points so you can act early.
When should you change the timing belt on a Envision I (facelift 2018)?
The timing belt is usually replaced every 100,000 km or 5 years on this type of engine.
Where can I find the service book for the Buick Envision I (facelift 2018)?
Garajo offers a free digital service book, always up to date, with reminders and a detailed history for your Buick Envision I (facelift 2018).
How much does it cost to service a Buick Envision I (facelift 2018)?
The service budget for a Buick Envision I (facelift 2018) sits slightly above the market average (+16%). Allow about 320 € for a full service, for example. Garajo estimates your budget by powertrain and tracks what you actually spend, for free.
Which Buick Envision I (facelift 2018) powertrain is best for town use?
This model is only available as petrol/diesel. Fuel mix: 6 petrol versions. In town, prefer the most economical, well-serviced petrol/diesel version.
Which Buick Envision I (facelift 2018) powertrain should you choose if you mostly drive on the motorway?
This model is only available as petrol/diesel. Fuel mix: 6 petrol versions. On the motorway, prefer petrol/diesel versions with the best power-to-consumption compromise.

Compatible engine oil

Which engine oil for Buick Envision I (facelift 2018)?

These links are limited to the engines of this generation when oil data is available.

Unsure between two viscosities?5W-30 vs 5W-400W-20 vs 5W-305W-30 vs 0W-30

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