1999 Buick LeSabre Recalls, Problems & Maintenance

The 1999 Buick LeSabre has no open NHTSA recalls. Owners report 8 recurring issue clusters, led by “Rusted brake line leaks and failures.” Buick uses the GM Oil Life System: an algorithm tracks engine revolutions and temperature, then lights the change-oil message — typically every 7,500 miles in mixed driving, capped at 12 months, using dexos-approved oil. Current Encore GX and Envista run 1.2/1.3L turbo three-cylinders where oil quality matters more than volume drivers expect (the sump is small and turbo-heated). Front-drive models pair to a CVT with a published fluid interval — it is not a lifetime part.

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No open recalls on file. NHTSA lists no unrepaired safety recalls for this year, make and model. A recall can be issued at any time, and a specific car can still have one open — check yours by VIN at nhtsa.gov/recalls.

Known issues & problems for this vehicle

What drivers and federal regulators have officially reported about the 1999 Buick LeSabre.

Reported to NHTSA

Rusted brake line leaks and failures

SERVICE BRAKES, HYDRAULIC

8 NHTSA complaints · 2004-09 → 2017-05

“THE BRAKE LINES RUSTED THROUGH (PICTURES AVAILABLE, THE LINES MAY STILL BE AVAILABLE) CAUSING NEARLY COMPLETE LOSS OF STOPPING POWER. I WAS ABLE TO PULL OVER BUT DID RUN INTO SHRUBBERY RESULTING IN MINOR SCRATCHES TO THE EXTERIOR”
— Owner report, NHTSA ODI #10414639
“THE BRAKE LINES IN MY 1999 BUICK LESABRE HAVE COMPLETELY RUSTED THROUGH. I WAS DRIVING HOME, UNDER NORMAL WEATHER AND ROAD CONDITIONS, WHEN MY BRAKE SYSTEM LIGHT WENT ON. UPON PULLING OVER, I SAW A LARGE LEAK IN THE BRAKE LINES”
— Owner report, NHTSA ODI #10269462
“THE BRAKE LINE ERUPTED WHILE DRIVING 65 MPH. CONSUMER WAS ABLE TO DRIVE THE VEHICLE TO THE DEALER BY USING THE VEHICLE EMERGENCY PARKING BRAKE. DEALER INFORMED CONSUMER THAT THE BRAKE LINE ERUPTED DUE TO RUST/CORROSION”
— Owner report, NHTSA ODI #10090392

Read all complaints on NHTSA →

Intake manifold coolant leak into engine

ENGINE AND ENGINE COOLING

31 NHTSA complaints · 2001-12 → 2014-12

“ENGINE SEIZED AND WOULDN'T START. FOUND THE INTAKE MANIFOLD FULL OF ANTIFREEZE. CAUSED BY A FAULTY INTAKE MANIFOLD. REPLACED MANIFOLD, CHANGED OIL AND ANTIFREEZE AND REPLACED CRACKED STARTER. *TR”
— Owner report, NHTSA ODI #10253595
“AFTER SOME LOCAL DRIVING AND BEING PARKED, CAR PRODUCED CLOUD OF EXHAUST SMOKE AND THEN WOULD NOT START. PROBLEM TRACED TO COOLANT LEAKAGE INTO CYLINDERS FROM FAILURE OF UPPER INTAKE MANIFOLD GASKETS. REPAIR COST: $681.30”
— Owner report, NHTSA ODI #10054656
“THE DEALERSHIP WAS NOTIFIED BUT DID NOT RESOLVE THE PROBLEM. *AK THE VEHICLE STALLED BECAUSE OF A CRACKED PLENUM WHICH ALLOWED WATER TO ENTER THE ENGINE. THE DEALER REPLACED THE PLENUM, SPARK PLUGS, CLEANED LOWER INTAKE AND CLEANED THE COOLANT FROM THE CYLINDERS. *NM”
— Owner report, NHTSA ODI #10075461

Read all complaints on NHTSA →

Engine stalling while driving

ENGINE AND ENGINE COOLING

21 NHTSA complaints · 2000-02 → 2014-09

“WHILE DRIVING DOWN MOUNTAIN & HAD DOWNSHIFTED INTO 2ND GEAR, VEHICLE LOST ALL POWER. ENGINE HAD STALLED OUT. HAD NO CONTROL OF VEHICLE. POWER BRAKES & POWER STEERING WAS NOT WORKING. HAD TO USE EMERGENCY BRAKES TO STOP. TOOK VEHICLE TO DEALER & MECHANIC RAN A DIAGNOSTIC TEST”
— Owner report, NHTSA ODI #872263
“VEHICLE STALLS WITHOUT WARNING WHILE MAKING TURNS AND WHILE ON STRAIGHT AWAYS, CONSUMER WAS ATTEMPTING TO GET THE VEHICLE TO THE DEALER BUT THE VEHICLE DIED HALFWAY INTO A TURN (NO BRAKE, POWER STEERING) AND CRASHED INTO A CHAIN LINKED FENCE. NLM”
— Owner report, NHTSA ODI #559458
“ONGOING PROBLEM WITH ENGINE STALLING INTERMITTENTLY. VEHICLE HAS BEEN INSPECTED/REPAIRS MADE BY DEALER ON EIGHT OCCASIONS, AND PROBLEM IS REOCCURRING”
— Owner report, NHTSA ODI #859118

Read all complaints on NHTSA →

Fuel pressure regulator leak and recall

FUEL SYSTEM, GASOLINE

12 NHTSA complaints · 2002-02 → 2005-06

“THE CONSUMER'S VEHICLE HAD A FUEL LEAK PRIOR TO RECEIVING RECALL NOTIFICATION. *NM THE RECEIVED A DENIAL LETTER WHICH STATED THE PART THAT WAS REPLACED ON THE VEHICLE WAS NOT APART OF THE RECALL. *JB”
— Owner report, NHTSA ODI #10092603
“WHILE ACCELERATING FROM A COMPLETE STOP OR PULLING OUT INTO ONCOMING TRAFFIC, THE VEHICLE DIED. THE DEALERSHIP REPLACED THE FUEL PRESSURE REGULATOR. *AK *SCC *JB”
— Owner report, NHTSA ODI #10046591
“VEHICLE THEN VIBRATED AND LUNGED FORWARD AGAIN. TOOK TO DEALER. CAUSE UNKNOWN. *AK DEALER FOUND FUEL PRESSURE REGULATOR TO BE FAULTY. *SLC”
— Owner report, NHTSA ODI #8004789

Read all complaints on NHTSA →

Power steering pump mounting bolts failure

STEERING

5 NHTSA complaints · 2003-05 → 2007-10

“THE ENGINE THEN SHUT OFF WITHOUT WARNING. THE VEHICLE WAS TOWED TO THE DEALER AND THEY STATED THAT THE POWER STEERING PUMP BOLTS SEPARATED AND FELL INTO THE ENGINE. THE DEALER ONLY REPLACED THE BOLTS. THE CURRENT AND FAILURE MILEAGES WERE 50,700”
— Owner report, NHTSA ODI #10205486
“WHILE BACKING INTO A PARKING SPACE, HEARD A LOUD NOISE AND LOST POWER STEERING. POWER STEERING PUMP DETACHED FROM WHERE IT WAS ANCHORED. THE TWO BOLTS THAT SECURED THE PUMP WERE SEVERED WHICH CAUSED THE SERPENTINE BELT TO COME OFF”
— Owner report, NHTSA ODI #10032680

Read all complaints on NHTSA →

Ignition switch and anti-theft wiring faults

ELECTRICAL SYSTEM

6 NHTSA complaints · 2004-03 → 2015-05

“CONSUMER WRITES IN REGARDS TO DEFECTIVE IGNITION SWITCH- ANTI THEFT WIRING ISSUES. *SMD THE CONSUMER STATED THE IGNITION SWITCH HAD TO BE REPLACED”
— Owner report, NHTSA ODI #10682285
“TL* THE CONTACT OWNS A 1999 BUICK LESABRE. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 40 MPH MAKING A RIGHT TURN, THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE RESTARTED AND WAS TAKEN TO AN INDEPENDENT MECHANIC”
— Owner report, NHTSA ODI #10653847
“IN APPROX 2010 MY BUICK LESABRE HAD ISSUES STARTING AND WOULD OCCASIONALLY STOP OPERATING DURING TRAVEL. ALL IGNITION FUNCTIONS WOULD CEASE TO WORK. TOWED TO BUICK DEALERSHIP TO RESOLVE AND REPLACED IGNITION SWITCH”
— Owner report, NHTSA ODI #10618484

Read all complaints on NHTSA →

Air bag deployment or horn sounding without a crash

AIR BAGS

6 NHTSA complaints · 2002-08 → 2018-02

“I WAS SITTING AT A RED LIGHT WHEN MY AIR BAG FROM THE STEERING COLUMN DEPLOYED IN MY FACE. I DID NOT HIT ANYTHING. IT WAS ON OR ABOUT 1/25/18. ABOUT A WEEK PRIOR TO THIS EVENT MY HORN BEGAN TO STEADILY BLOW INEXPLICABLY”
— Owner report, NHTSA ODI #11074558
“DRIVING NORTH ON AVON RD, PLAINFIELD IN, BOTH AIR BAGS DEPLOYED FOR NO REASON. IT BLEW THE DRIVERS HANDS OFF THE WHEEL GOING 45 MILES PER HOUR. DID NOT CRASH. THE PASSENGER HAS BRUISES ON LEG. IT HAPPENED EARLY EVENING, STILL LIGHT OUTSIDE, GOOD WEATHER. NO WARNING WHAT SO EVER”
— Owner report, NHTSA ODI #10678878
“TL* THE CONTACT OWNS A 1999 BUICK LESABRE. THE CONTACT STATED THAT THE AIR BAGS DEPLOYED INADVERTENTLY ONCE THE ENGINE WAS STARTED. THE CONTACT SUSTAINED INJURIES TO THE HEAD AND NECK AS A RESULT OF THE FAILURE”
— Owner report, NHTSA ODI #10521054

Read all complaints on NHTSA →

Air bags not deploying in a collision

AIR BAGS

4 NHTSA complaints · 2000-02 → 2001-07

“VEHICLE WAS INVOLVED IN A A 40 MPH FRONTAL COLLISION IN WHICH DRIVER AND PASSENGER AIR BAGS DID NOT DEPLOY, CAUSE HAS NOT BEEN DETERMINED. PLEASE GIVE ANY FURTHER DETAILS.*AK”
— Owner report, NHTSA ODI #892374
“MY VEHICLE WAS REAR ENDED BY ANOTHER VEHICLE ( CHEVY ASTRO MINI-VAN) IN EXCESS OF 60 MPH. I WAS TRAVELING AT POSTED 30 MPH. MY CAR WAS SHOVED INTO THE CONCRETE WALL OF THE BRIDGE CAUSING SEVERE FRONT DAMAGE AND THEN RIDING UP THE WALL AND THEN BACK ONTO THE ROADWAY”
— Owner report, NHTSA ODI #727926
“WHEN VEHICLE WAS INVOLVED IN A CRASH. IT WAS HIT ON THE DRIVER'S SIDE BY A SEMI TRAILER TRUCK, THEN CONSUMER'S VEHICLE HIT ANOTHER TRUCK. WHEN THIS HAPPENED, THERE WAS NO DEPLOYMENT OF DRIVER'S SIDE OR PASSENGER'S SIDE AIR BAGS. VEHICLE WAS TOTALLED”
— Owner report, NHTSA ODI #857572

Read all complaints on NHTSA →

Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Sep 20, 2026. Investigation data refreshed Sep 20, 2026.

We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.

Raw data + downloads for this vehicle →

Essential maintenance

Critical for safety and preventing major damage

Engine Oil & Filter (Oil Life System)

Every 7,500 mi

Change when the Oil Life System calls it — typically around 7,500 miles, never beyond 12 months. dexos1 0W-20 on modern engines. Small-displacement turbos (Encore GX, Envista): don't stretch the indicator.

Estimated cost — typical U.S. ranges

Dealer

~$120–$160

Shop

~$85–$115

DIY

~$25–$55

Full synthetic costs more than conventional. 5-quart 0W-20 + filter is the typical bill.

Tire Rotation

Every 7,500 mi

Rotate every 7,500 miles with the oil change — GM pairs the two in its schedule.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Often free at the shop where you bought the tires — worth asking before paying.

Brake Inspection

Every 7,500 mi

Inspect pads, rotors, and lines at every service. Older Centurys: check rear drum adjustment and parking-brake cables, which seize with age.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Most shops do this free as a courtesy with any service. Don't pay separately if you can avoid it.

CVT Fluid (Encore GX / Envista FWD)

Every 45,000 mi

FWD Encore GX and Envista use a CVT: GM schedules fluid replacement around 45,000 miles under severe service — which includes most city commuting. AWD Encore GX uses a 9-speed automatic instead (see transmission fluid).

Estimated cost — typical U.S. ranges

Dealer

~$360–$500

Shop

~$255–$355

DIY

~$80–$180

CVT fluid is manufacturer-specific and pricey — do NOT substitute conventional ATF.

Important maintenance

Keeps your vehicle running smoothly and efficiently

Automatic Transmission Fluid

Every 45,000 mi

Conventional automatics (Century's 4T65-E, Regal's Aisin, AWD Encore GX's 9-speed): GM lists 45,000 miles severe / longer normal. Older Buicks respond well to a simple drain-and-fill — avoid pressure flushes on high-mile units.

Estimated cost — typical U.S. ranges

Dealer

~$330–$500

Shop

~$235–$355

DIY

~$60–$180

Some sealed transmissions have no dipstick — fill is precise and best left to a shop. Many drivers can still DIY drain-and-fill.

Spark Plugs

Every 60,000 mi

Small-turbo three-cylinders (Encore GX, Envista): roughly every 60,000 miles — check the manual. Older 3.1/3.8 V6s: iridium plugs last to 100,000 miles.

Estimated cost — typical U.S. ranges

Dealer

~$285–$390

Shop

~$200–$275

DIY

~$25–$100

Iridium plugs cost more but last 100k+ miles. V6/V8 access varies wildly — some are tough.

Engine Air Filter

Every 45,000 mi

GM schedules replacement around 45,000 miles; inspect at every oil change in dusty regions.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

5-minute job on most cars; the airbox lid usually has clips, no tools needed.

Serpentine Belt

Every 60,000 mi

Inspect from 60,000 miles; replace on cracking or glazing rather than mileage alone.

Estimated cost — typical U.S. ranges

Dealer

~$195–$235

Shop

~$135–$165

DIY

~$20–$50

DIY-friendly if you can reach the tensioner. Inspect for cracks rather than swap on a strict mileage interval.

Recommended maintenance

Extends the life of your vehicle and improves comfort

Cabin Air Filter

Every 22,500 mi

Replace roughly every 22,500 miles per GM's schedule — behind the glovebox on modern Buicks.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

Usually behind the glovebox. Shops charge labor for a 10-minute job — easy DIY win.

Coolant Replacement (Dex-Cool)

Every 150,000 mi

Dex-Cool is rated 5 years / 150,000 miles. On older 3.1/3.8 V6s, intake-gasket seepage was the classic failure — check coolant level and condition at every oil change on a Century.

Estimated cost — typical U.S. ranges

Dealer

~$285–$330

Shop

~$200–$235

DIY

~$25–$60

Use the manufacturer-specified coolant — wrong color/chemistry can damage the cooling system.

Battery Test & Service

Every 25,000 mi

Test annually after year 3. Stop-start-equipped Encore GX/Envista use AGM batteries — replace like-for-like, not with a cheaper flooded battery.

Estimated cost — typical U.S. ranges

Dealer

~$225–$390

Shop

~$160–$280

DIY

~$130–$250

Most auto-parts stores test and install batteries free with purchase. Skip the dealer markup.

Fatal crash history & reported problems

Occupant deaths in fatal crashes (FARS)

284 crashes 1990–2024

How the 284 occupant deaths break down

207

driver deaths

77

passenger deaths

284

occupant deaths

Crash years covered: 1990–2024 This model year first appears in 1998 crashes. Older models have had more years on the road to appear in these crashes, so a higher count here does not by itself mean a vehicle is less safe.

FARS counts every occupant death in a fatal crash, whatever the cause — it does not mean the vehicle was at fault or defective. Counts are not adjusted for how many of each vehicle are on the road. How to read this number

FARS 2024 data is an annual report file. NHTSA revises these records when the final file is published, so this count can change.

Why we show driver deaths too

Every vehicle has exactly one driver seat, so driver deaths line up fairly when you compare one model to another. Occupant deaths include passengers, so a three row SUV can show a higher number than a two seat car simply because it carries more people.

Both figures are plain counts, not rates. A rate would need to know how many of each vehicle are on the road, and that registration data is not public, so we do not publish rates or scores of any kind.

IIHS publishes driver death rates using this same driver only idea, paired with a registered vehicle years denominator we do not have. Their rates and these counts answer different questions, so do not read either number here as a safety rating.

Owner-reported problem signals

Separate from the federal fatality data above: complaints owners filed with NHTSA about this year and model. These are reports of problems, unverified, and are counted here only as signals.

19

complaints mentioning a crash

28

complaints mentioning a fire

Reviewed known issues for this vehicle

Typical U.S. ranges. Actual quotes vary by shop, parts choice, and vehicle condition.

How we estimate: Dealer = OEM parts × 1.4 + labor × $165/hr. Shop = parts + labor × $115/hr. DIY = parts only.

This maintenance schedule for the 1999 Buick LeSabre reflects Buick's published service intervals and the GM Oil Life System system. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.