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Electrical systemPart report

1994 Lexus LS400 Electrical system Problems

Complaints
44about this part
Share
65%of 68 total for the year
Median mileage
90,000miles
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.

NHTSA recorded 44 complaints about the electrical system of the 1994 Lexus LS400, 65% of the 68 complaints for this model year. Where a mileage was given, the median is 90,000 miles.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“1994 Lexus ls 400 dash lights do not come on. Where as you cannot tell how fast you are going. Also the gauges do not work. If the engine gets over heated , there's no way to know. As I am 74 years old with the gauges not working I have run out many times. I feel Lexus should take care of this problem. This a safety issue.”

NHTSA complaint #10276429, filed 2009-07, 86,341 miles

“When the vehicle is cold, the instrument panel does not light up. It takes about an hour of driving to warm up the dashboard and will eventually flicker. This happens constantly and seems to be an issue with all Lexus ls400s. I am also having an issue with the power steering leaking. The leakage has caused my alternator to go bad. I have since replaced the alternator, steering pump and steering rack. The issue also seems to be for all Lexus ls400s.”

NHTSA complaint #10478319, filed 2012-10, 120,000 miles

“I am complaining about a common problem with the instrument cluster on the Lexus LS400. It seems to be more than just a random few, as I have read multiple complaints of this happening and being a known problem that Lexus refuses to address. This needs to be recalled and fixed at the expense of Lexus.”

NHTSA complaint #10172058, filed 2006-10, 60,000 miles

“Our 1994 Lexus LS400 has approximately 85,000 miles currently. About 2 years ago the instrument panel lights became erratic, frequently failing to come on during cold weather. This would require that we waited with the engine on until the car heated up before being drivable safely. The length of warm up time has gradually increased to an intolerable level, where I have had to drive the car without instrument lights due to my wife's emergent medical conditions. …”

NHTSA complaint #10290194, filed 2009-10, 70,000 miles

“1994 Lexus LS400 instrument panel lights not working when cold, and now even in the summer it takes longer for the lights to come on. In colder weather my lights don't go on until the car is driven approximately 60 miles. I cannot see how fast I am going, and the safety of road construction workers is a huge issue and I want to maintain a safe the safe legal speed. The odometer doesn't register, I don't know how much gas I have,. This continues to worsen and my fear is that eventually I will have no lights at all. …”

NHTSA complaint #10375389, filed 2011-01, 85,000 miles

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2000325%
1999418%
1998920%
1997215%
1996316%
19951231%
19944465%
19934265%
1992225%
199115%
1990625%

Other parts of the 1994 Lexus LS400

Interior lighting
10 complaints
Seat belts
6 complaints
Air bags
2 complaints
Exterior lighting
2 complaints
Other or unknown
2 complaints
Steering
2 complaints
Tires
2 complaints
Transmission and drivetrain
2 complaints
Wheels
2 complaints
Fuel system
1 complaints
Visibility (wipers, defrost, mirrors)
1 complaints

← All problems reported for the 1994 Lexus LS400

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology