Lexus Ls400 1991

Model Ls400 made in 1991 by Lexus got 27 consumer complains as well as 4 service bulletins. Consumer complaints with reference, among others things, to air bags and electrical system. Technical service bulletines regarding engine and engine cooling and seat belts. The car has one 4.0l engine.

Model 1991

Engine [L]CylindersTransmissionDriveEstimate MPG (city/highway/combined)Unadjusted MPG (city/highway/combined)FuelFuel costClassRelease date
( 4.0L) 8Lockup/automatic, 4 gearsRWD18/23/2020/29/23Premium$ 1088590 824

Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
ENGINE AND ENGINE COOLING - COOLING SYSTEM - RADIATOR ASSEMBLY
EG9500204/01/199541099Radiator reservoir tank sub-assembly and supply parts. *tw11/01/1995
SEAT BELTS
BO0050103/23/2001619119Subject regarding new seat belt tongue plate stopper service parts. *tt05/15/2001
STEERING
ST01010102/16/2001619796Subject regarding steering wheelnut service specification. *tt07/02/2001
SUSPENSION
0120210/11/200210000251Suspension ball joint inspection method. *tt02/20/2003

Consumer Complaints


Fail datemilesoccurencesPurchase date
AIR BAGS
12/12/1996
 Air bag did not fully deploy, filled compartment with smoke instead. *ak
AIR BAGS - FRONTAL
01/29/1999
 Stopped at a toll booth on route 355 and north aveue, and was rear ended by a geo metro traveling 50mph. upon impact, neither airbags deployed. insurance company has refused to pay for repairs. consumer has spent over $5,000. for the necessary repairs. didn't contact the dealer or manufacturer. *ak
 Consumer was in an accident and the driver side air bag didn't deploy . tt
ELECTRICAL SYSTEM
12/01/20081
 Its well known that the power steering/alternator setup on the 1990-1994 lexus ls400s are poorly designed. the power steering pumps are known to spring leaks. they are located directly over the alternator charging system and the leaking fluid shorts out the alternator, leading to failure. i have had two of these and both were leaking and after researching, its hard to find a 1990-94 ls400 on the road that does not have a leaking power steering pump. the pump seals should have been better manufactured, placed in a different configuration, or a alternator guard placed over the alternator to keep the fluid from seeping into the alternator causing the premature failure. i have seen a couple of these with fires in this area and can understand it being a possibility with the power steering oil leaking down into the alternator. so, not only do the pumps leak externally (they also leak internally and suck into the engine), but they also ruin the alternator and cause a potential fire hazard. another problem area with this same car is the hvac controls will turn black after a few years, creating a safety hazard, because you cannot see what your heating/defroster settings are at night. *tr
ENGINE AND ENGINE COOLING - ENGINE - GASOLINE
08/01/1991
 Car was parked in front of my house and caught on fire. totalled
08/31/1998106/20/1995
 While idiling in neutral, driver placed the gear into drive while his foot was on the brake and the vehicle surge forward and the engine accelerated to maximum throttle despite holding the brake pedal down as far as it could go. vehicle struck a parked vehicle.
OTHER
05/07/2000105/01/2000
 Instrument indicator needles fail to iluminate. see this as a common problem of others at this yahoo lexus chat forum --- http://messages.yahoo.com/bbs?.mm=au&action=m&board=8313852&tid=lexusinstrumentlightproblems&sid=8313852&mid=1 8ak
PARKING BRAKE - CONVENTIONAL
12/01/19943
 Emergency brake is faulty. tt
SEAT BELTS
12/18/20081
 1 - seat belts to not fully automatically retract by themselves in cool weather. *tr
SERVICE BRAKES, HYDRAULIC
06/30/2011134625
 Tl - the contact owns a 1991 lexus lx 400. the contact stated that while pulling out of a parking lot the brake pedal went to the floor. the contact mentioned that the brake fluid was pouring out of the vehicle. the vehicle was taken to a local shop who diagnosed that the brake lines broke which cause the fluid to come out. the manufacturer was made aware of the failure who did not offered any assistance other than filed a complaint. the vehicle was repaired. the failure mileage was 134,625 and the current mileage was 134,900. pm
SERVICE BRAKES, HYDRAULIC - ANTILOCK
12/22/1998105/01/1992
 Parked car-put in reverse and vehicle took off full throttle, brakes did not work-totaled car. *ak
02/01/1995
 Consumer was driving pulling into a parking space and anti-lock brake failed caused an accident hit a tree . tt
12/01/19943
 Abs brakes: experienced loss of brake effectiveness. tt
SERVICE BRAKES, HYDRAULIC - FOUNDATION COMPONENTS
12/23/19943
 Brakes failed twice. *ak
STEERING
12/01/20081
 Its well known that the power steering/alternator setup on the 1990-1994 lexus ls400s are poorly designed. the power steering pumps are known to spring leaks. they are located directly over the alternator charging system and the leaking fluid shorts out the alternator, leading to failure. i have had two of these and both were leaking and after researching, its hard to find a 1990-94 ls400 on the road that does not have a leaking power steering pump. the pump seals should have been better manufactured, placed in a different configuration, or a alternator guard placed over the alternator to keep the fluid from seeping into the alternator causing the premature failure. i have seen a couple of these with fires in this area and can understand it being a possibility with the power steering oil leaking down into the alternator. so, not only do the pumps leak externally (they also leak internally and suck into the engine), but they also ruin the alternator and cause a potential fire hazard. another problem area with this same car is the hvac controls will turn black after a few years, creating a safety hazard, because you cannot see what your heating/defroster settings are at night. *tr
STEERING - LINKAGES - TIE ROD ASSEMBLY
06/06/199803/03/1997
 Tie rod failure.
STRUCTURE - BODY - DOOR
12/05/19955
 Water leak on passenger's side from headliner of door/floor. *sd
TIRES
08/14/1996
 Wheels on the vehicle are defective and started to flake off. when the dealer dipped the whole wheel, then the chrome flaked off, and the tires started to lose air. consumer contacted dealer, dealer can't determine what the problem is. *ak
TIRES - TREAD/BELT
07/14/20012
 Tread separated while driving at 70 mph. *ak (tiresize: 205/65-15)
VEHICLE SPEED CONTROL
12/22/1998105/01/1992
 Parked car-put in reverse and vehicle took off full throttle, brakes did not work-totaled car. *ak
10/17/199612/01/1990
 Shiifted gear selector in reverse the vehicle suddenly surged rearward, resulting in an accident. *ak
WHEELS
08/14/1996
 Wheels on the vehicle are defective and started to flake off. when the dealer dipped the whole wheel, then the chrome flaked off, and the tires started to lose air. consumer contacted dealer, dealer can't determine what the problem is. *ak
12/31/1994
 Problem with rear wheel locking up. tt