1998 Toyota Sienna — Known Issues & Recalls

Your warning lights on the dashboard stop working when the engine gets hot, except for the check engine light which continues to function. This means you might not see important alerts like low oil pressure, low battery, or overheating until it's too late. The repair will likely involve checking the instrument cluster wiring, connectors, and possibly replacing faulty gauge sending units or the instrument cluster itself.

Your dashboard lights turn on when you press the brake pedal, suggesting an electrical wiring problem where circuits are connected in unusual ways. This abnormal electrical routing raises concerns about whether brake pedal operation could affect engine acceleration. A mechanic should inspect the brake switch and electrical wiring to identify and correct the incorrect connections.

Your car's horn has stopped working completely after first working on and off intermittently. This is a safety concern since you won't be able to alert other drivers to hazards. The repair will likely involve checking the horn relay, fuse, wiring connections, or replacing the horn itself.

Your gear shifter mount unit on the steering column broke apart, leaving your vehicle stranded in the middle of the road. This prevented you from being able to shift gears or move the vehicle. The repair will likely involve replacing the broken steering column shifter assembly.

Your Sienna makes clunking noises when you turn the steering wheel. A mechanic confirmed the steering rack mount is broken and says it needs to be replaced to drive safely. This repair involves removing and replacing the steering rack assembly.

Your van accelerates unexpectedly and aggressively when you lightly press the gas pedal, especially going uphill, making it difficult to control. You've had to shift into neutral to slow down, and you nearly crashed due to this sudden acceleration. This issue has made you hesitant to drive the van safely. The problem likely involves the fuel delivery system, throttle control, or transmission response and will need diagnostic testing to identify the root cause.

When you shift from Park to Drive, your car accelerates on its own without you pressing the gas pedal. Your brakes don't stop the car—the only way to stop it is by shifting into Park or Neutral. This is a dangerous unintended acceleration problem that requires immediate attention to your transmission and throttle control systems.

Your sliding side door's push-button release mechanism isn't working properly. When the door is unlocked, the button fails to release, preventing the door from closing. When the door is locked, the button won't release either, trapping the door in a locked state so it can't be opened. The fix will likely involve replacing or repairing the internal door latch mechanism and push-button assembly.

The push-button release mechanism on your sliding side doors isn't working properly. When the door is unlocked, the button fails to release, preventing the door from closing. When the door is locked, the button won't release either, keeping you from unlocking and opening the door. You can temporarily work around this by sliding a flat blade under the button to release it. The fix will likely require replacing or repairing the door latch assembly and push-button mechanism.

Your steering component may break, which could cause you to lose control of your vehicle. This is a serious safety issue that requires immediate inspection and repair of the affected steering parts.

During a front-end collision at an estimated 30-40 mph, your car's airbags failed to deploy even though the impact was significant enough to require emergency braking. The crash occurred on a wet interstate when another vehicle lost control and stopped in your lane. Your seatbelts protected you and your passengers, but the airbags should have supplemented that protection. This will likely require a diagnostic scan of the airbag system and possibly replacement of the airbag control module or sensors.

While driving on the highway, you heard clunking and rattling noises from the front left side of your vehicle, and your brake light came on. You discovered brake fluid leaking around the front driver's side tire. Your mechanic found that the front strut mounting had failed and punctured the brake fluid reservoir, causing the fluid to drain almost completely. This is a serious safety issue that requires replacement of the failed strut assembly and the damaged brake fluid reservoir.

Your engine continued running even after you turned off the ignition switch, and turning the key on and off repeatedly didn't shut it down. When you opened the hood, you discovered the starter motor was stuck in the engaged position and wouldn't disengage from the engine, causing it to overheat and produce heavy smoke. You had to disconnect the battery to stop the starter from cranking. The starter motor likely needs to be replaced or the electrical connection that controls it needs to be repaired.

Your van was hit on the right front side in a serious collision. The right front passenger seat belt initially held but released during the crash, causing the passenger to slide across the cabin. Neither the driver nor passenger airbag deployed during the impact. The issue involves both the seat belt system failing to keep the passenger restrained and the airbags not activating when needed.

While parking at a daycare at 5 mph with your foot on the brake, your Sienna suddenly accelerated on its own and wouldn't stop despite hard braking. The van crossed the parking lot and sidewalk, hit a brick wall, and was totaled. You were injured and had to have surgery, though your grandchildren were unharmed.

Your tire has been vibrating noticeably between 60-65 mph for months, though it smooths out at higher speeds. Recently you've noticed the vehicle rocking when cold and at low speeds, and you've spotted an outward bulge in the rear tire tread. This bulge suggests the tire structure is failing and could lead to tread separation. You should have the tire replaced as soon as possible to prevent a blowout.

Your airbag warning light is on, and your horn and cruise control have stopped working. These symptoms suggest an electrical problem that may be affecting multiple systems in your vehicle. You should have a mechanic diagnose and repair the underlying electrical fault, which could involve replacing a faulty clock spring, fuse, or wiring harness.

You had your tire carrier cable repaired at a Toyota dealership under recall A9E and submitted all required documentation for reimbursement, including repair orders and proof of payment using the correct part number. Toyota customer service asked for additional information about the repair, and when you followed up multiple times with the dealership manager for written documentation, you received no response. Despite providing everything Toyota asked for, your reimbursement claim was denied.

You received a recall notice for your 1998 Toyota Sienna related to a structural issue, but the dealer delayed the repair because parts weren't available. You haven't experienced an actual failure yet, but the recall work still needs to be completed.

Your rear sliding doors won't lock or unlock when you use the electronic lock/unlock buttons on the front doors. The rear doors can't be controlled from the front, even though they should be able to be.