Speedometer and Tachometer intermittent, work properly or do not work at all. Owned vehicle since special ordered from factory at end of model year, purchased the full OEM Toyota manuals before ordering the vehicle and have considerable engineering troubleshooting and design experience. Took entire instrument cluster module apart once. Did not see any obvious basis for the intermittent behavior during that disassembly but was not prepared at that time to perform relevant electronic troubleshooting. Location of the problem was not found without troubleshooting the electronics, though interestingly the cluster worked flawlessly for several weeks thereafter, even though the speedometer and tachometer had neither been working for several weeks prior to my disassembly; apparently I made enough difference in whatever detail of assembly to temporarily stop the malfunction, even though I did not recognize what that was. While several vendors online promote their repair services for this problem, some quite believable, given cash flow issues and time, I am not willing to send the cluster to someone else to modify/repair.

Both the speedometer and tachometer have a mechanical stop for the needles. The stop is located behind the display board.



The stop and needle contact point tend to develop a sticky residue which mechanically prevents the needle from rising above zero. At the behavior would indicate, the needles independently of one another, tend to stick at zero, yet intermittently, while driving will resume normal reading.



Disassembling the instrument cluster and carefully cleaning the stop and needle contact point with some solvent on a bent cotton swab or pipe cleaner should solve the problem. Just be careful not to break any of the delicate parts.



This problem and solution were first posted by users on the ClubLexus forums, but the brief discussion is difficult to locate.





If able, I will post a photo or short video of the problem and solution. Both the speedometer and tachometer have a mechanical stop for the needles. The stop is located behind the display board.

The stop and needle contact point tend to develop a sticky residue which mechanically prevents the needle from rising above zero. At the behavior would indicate, the needles independently of one another, tend to stick at zero, yet intermittently, while driving will resume normal reading.

Disassembling the instrument cluster and carefully cleaning the stop and needle contact point with some solvent on a bent cotton swab or pipe cleaner should solve the problem. Just be careful not to break any of the delicate parts.

This problem and solution were first posted by users on the ClubLexus forums, but the brief discussion is difficult to locate.


If able, I will post a photo or short video of the problem and solution.

Both the speedometer and tachometer have a mechanical stop for the needles. The stop is located behind the display board.

The stop and needle contact point tend to develop a sticky residue which mechanically prevents the needle from rising above zero. At the behavior would indicate, the needles independently of one another, tend to stick at zero, yet intermittently, while driving will resume normal reading.

Disassembling the instrument cluster and carefully cleaning the stop and needle contact point with some solvent on a bent cotton swab or pipe cleaner should solve the problem. Just be careful not to break any of the delicate parts.

This problem and solution were first posted by users on the ClubLexus forums, but the brief discussion is difficult to locate.

If able, I will post a photo or short video of the problem and solution. Both the speedometer and tachometer have a mechanical stop for the needles. The stop is located behind the display board.
The stop and needle contact point tend to develop a sticky residue which mechanically prevents the needle from rising above zero. At the behavior would indicate, the needles independently of one another, tend to stick at zero, yet intermittently, while driving will resume normal reading.
Disassembling the instrument cluster and carefully cleaning the stop and needle contact point with some solvent on a bent cotton swab or pipe cleaner should solve the problem. Just be careful not to break any of the delicate parts.
This problem and solution were first posted by users on the ClubLexus forums, but the brief discussion is difficult to locate.
If able, I will post a photo or short video of the problem and solution.