2021 Buick Encore GX Preferred
KL4MMBS29MB167655
Vehicle history report for the 2021 Buick Encore GX Preferred (VIN KL4MMBS29MB167655). Ebony twilight metallic, sport utility vehicle (suv)/multi-purpose vehicle (mpv), 1.2L 3-cyl, gasoline. Registered in Mi. 2 NHTSA recall campaigns for this model year. Unlock full title, salvage, lien & accident h
At a glance
Vehicle identity & specifications
🧾 Window sticker / build sheet → All 2021 Buick Encore GX data →
Safety & driver-assistance equipment
Equipment the manufacturer reported to NHTSA for this VIN.
"Optional" means the feature was offered on this model but the VIN alone can't confirm it was fitted. Source: NHTSA vPIC.
What's a 2021 Buick Encore GX worth?
What comparable 2021 Buick Encore GX vehicles are listed for — a quick gut-check before you negotiate.
Is the seller's price fair? Get this exact VIN's current market value — retail, trade-in & loan value — in the full report.
See this car's exact value →MPG & running costs
U.S. EPA fuel-economy estimates for the 2021 Buick Encore GX with this engine.
Source: U.S. EPA / DOE fueleconomy.gov. Actual mileage varies with trim and driving conditions.
Estimated 5-year cost to own
A rough guide to what running a 2021 Buick Encore GX costs over five years and 75,000 miles.
How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.
Full vehicle history report
What a full report checks for VIN KL4MMBS29MB167655
A full report searches national title databases (NMVTIS) and licensed history providers for this VIN and shows whatever records are on file — not every vehicle has every record type. The decode, safety recalls and owner complaints above are always free.
Safety recall campaigns 2
SERVICE BRAKES
General Motors LLC (GM) is recalling certain 2020 Chevrolet Corvette and Cadillac CT4, CT5 and XT4, 2021 Chevrolet Trailblazer, and 2020-2021 Buick Encore GX vehicles. Sensor connection contamination in the electronic brake boost system may cause an interruption of communication between the sensor and the brake boost system.
Remedy: GM will notify owners, and dealers will replace the electronic brake boost module, free of charge. The recall began December 9, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's nu
NHTSA Campaign #20V588000 · 24/09/2020EQUIPMENT:MECHANICAL:ACCESSORY SCISSOR/SCREW/BOTTLE JACK/LIFT:STAND
General Motors, LLC. (GM) is recalling certain 2020-2022 Buick Encore GX and 2021-2022 Chevrolet Trailblazer vehicles. The emergency jack, if not positioned as directed in the vehicle owner's manual, can fracture while in use.
Remedy: Dealers will replace the jack, free of charge. Interim owner notification letters informing owner of the safety risk are expected to be mailed July 26, 2021. A second notice will be mailed once remedy parts become available. Owners may contact Buick customer service at 1-800-521-7300 or Chevrolet
NHTSA Campaign #21V440000 · 10/06/2021These are NHTSA recall campaigns for this model year. They don't show whether this particular car has had the repair done — check this VIN on NHTSA.gov or ask a franchised dealer. Recall repairs are free.
We'll email you the moment a new safety recall is issued — no spam, unsubscribe any time.
Common problems & what to inspect
Owners have filed 48 complaints with NHTSA about the 2021 Buick Encore GX. The breakdown below is from a sample of the 15 most recent, so the counts are not totals.
🔍 Listen for knocks or ticking, check for leaks and blue/white exhaust smoke, and make sure it doesn't overheat. No check-engine light should be on.
🔍 Drive through every gear: watch for slipping, hard or delayed shifts, and shudder. Check for transmission/driveline leaks and noises.
🔍 Test cruise control and throttle response, and watch for any hesitation or unintended acceleration.
🔍 Check for fuel or battery warnings, hard starts and stalling. On a hybrid/EV, confirm charging and range behave normally.
🔍 Test every electrical feature: windows, locks, infotainment, charging and all lights. Watch for flickering, dead accessories or warning lights.
🔍 Brakes should feel firm and quiet — no grinding, pulsing or pulling. Check for an ABS light and uneven pad/rotor wear.
Pre-purchase checklist
- Match the VIN on the dash, door jamb and title — they must be identical.
- Cold-start the engine; listen for knocks and check for blue or white exhaust smoke.
- Test-drive through all gears at low and highway speed — no slipping, shudder or pulling.
- Confirm every warning light clears at startup (none should stay on).
- Check fluids — oil, coolant, transmission — for level, color and leaks.
- Look underneath for rust, fresh undercoating or signs of collision repair.
- Always get an independent pre-purchase inspection from a trusted mechanic.
Owner complaints 48
Complaints filed with NHTSA by owners of the 2021 Buick Encore GX.
VEHICLE SPEED CONTROL
Due to defective LIN BUS 2 failure to read mass air flow sensor, vehicle suddenly goes into limp mode. This speed control issue is documented in GM Technical Service Bulletins (TSBs) #22-NA-008 and PIP5934, 2022.
NHTSA ODI #11742772POWER TRAIN
A 2021 Buick Encore GX with 66,828 miles experienced sudden transmission failure while driving. The vehicle lost forward gear engagement and began slipping, creating an immediate safety risk to the driver and other motorists due to unexpected loss of vehicle propulsion and control. The vehicle was diagnosed by an authorized GM dealership. Diagnostic codes P…
NHTSA ODI #11735946ENGINE
The 1.3L turbo caused metal fragments to get into my engine which in return caused the transmission to fail. My 2021 Buick encore gx has been in the shop since early February 2026 at Garber Buick in Fort Pierce Florida. The first diagnosis was solenoids needed to be replaced, after the solenoids were replaced they told me the engine needed to be replaced, on…
NHTSA ODI #11735353POWER TRAIN,VEHICLE SPEED CONTROL,ENGINE
Turbocharger is defective. Reduced engine power. Engine Power reduced shows up on my dashboard. I bought the car brand new at Lindsey Buick in Ohio. This car is too young for this problem. Lindsey Buick and GM need to stand up to accountability and transparency when it comes to delivering top quality products. My vehicle almost caused a horrific accide…
NHTSA ODI #11733173ENGINE,FUEL/PROPULSION SYSTEM
My vehicle suddenly stalled and completely shut off while I was driving. No warning lamps, messages or other symptoms to alert me there was any engine issues. I was definitely put in danger as I was driving at rush hour in a 6 lane busy US 1 Federal Highway. The vehicle was stalled, without any power, in the middle lane with cars and trucks swerving around…
NHTSA ODI #11732027UNKNOWN OR OTHER
Shifter to park message showing on dash and Vehicle will not stop beeping and drains the battery and you can not lock the car. This is a know problem with Buick Encore 2023 and Buick has not recalled it and did not cover the cost of the repair, which cost me $659.68 plus tax.
NHTSA ODI #11727335POWER TRAIN
The contact owns a 2021 Buick Encore GX. The contact stated that while attempting to park the vehicle, the message to “Shift to Park” was displayed while the vehicle was already shifted in park(P). The contact stated that several attempts to shift to park were needed to clear the message. On several occasions, the contact drove the vehicle and then shifted b…
NHTSA ODI #11723351POWER TRAIN,ELECTRICAL SYSTEM
The contact owns a 2021 Buick Encore GX. The contact stated that during a routine oil change at the local dealer, the contact informed the dealer that while in the park or shifting to park, the engine was shutting off unexpectedly. The message to “Shift to Park” was displayed and the vehicle was difficult to turn off. The contact wiggled the ignition to shut…
NHTSA ODI #11713934+ 40 more complaints on record.
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Frequently asked questions
Can I find out who owns this vehicle from the VIN?
No — and no legitimate service can. Linking a VIN or plate to a named owner is restricted by the U.S. Driver's Privacy Protection Act, the EU GDPR and equivalent laws. CarLogs shows the vehicle only — specs, recalls, problems and value — never the person.
Is the VIN KL4MMBS29MB167655 valid?
KL4MMBS29MB167655 is a structurally valid 17-character VIN with a correct ISO 3779 check digit, assigned to a manufacturer in South Korea. It decodes to the 2021 Buick Encore GX.
Are there safety recalls on the 2021 Buick Encore GX?
NHTSA lists 2 recall campaigns for the 2021 Buick Encore GX model year. That covers the model year, not this individual car: to see whether a specific vehicle still needs a recall repair, check its VIN on NHTSA.gov or ask a franchised dealer. Recall repairs are free.
What is a fair price for a 2021 Buick Encore GX?
Comparable 2021 Buick Encore GX listings run roughly $22,914–$29,999, typically around $25,612 (from 6 comparable vehicles). The full report shows this exact VIN's valuation.
What fuel economy does the 2021 Buick Encore GX get?
The 2021 Buick Encore GX has a U.S. EPA estimate of 29 mpg combined (28 city / 31 highway).
Sources: NHTSA (recalls & complaints), U.S. EPA (fuel economy), NHTSA vPIC (specifications). Vehicle data only — CarLogs never shows owner information.