Roadside Assistance - Towing & Jump Starting
Roadside AssistanceLexus GS450h roadside assistance may be handled like conventional Lexus vehicles except as noted as follows.
Lexus Roadside Assistance is available during the basic warranty period by contacting:
United States: (800) 255-3987
Canada: (800) 265-3987
Shift Lever
Similar to most Lexus vehicles, the GS450h uses a gated shift lever as shown in the illustration. However, the GS450h shift lever includes an S position for 6 levels of engine braking.
Towing
The GS450h is a rear drive vehicle and it must be towed with the rear wheels off the ground. Failure to do so may cause serious damage to the Hybrid Synergy Drive components.
- A flat bed trailer is the preferred method of towing.
- When towing the vehicle with the front wheels on the ground, be sure to release the steering lock by turning the ignition-on.
- The vehicle may be shifted out of Park into Neutral by turning the ignition-on, depressing the brake, then moving the gated shift lever to N.
- If the shift lever cannot be moved out of Park, a shift lock release button is provided near the shift lever as shown in the illustration.
- If a tow truck is not available, in an emergency the vehicle may be temporarily towed using a cable or chain secured to the emergency towing eye let. This should only be attempted on hard, paved roads for short distances at low speeds.
Electric Trunk Opener
The GS450h is equipped with an electric trunk opener. In the event of 12-Volt power loss, the trunk can be opened with the metal cut key hidden in the smart key.
Electric Fuel Door Opener
The GS450h is equipped with an electric fuel door opener. In the event of 12-Volt power loss, the fuel door can only be opened using the manual release located inside the trunk.
Spare Tire
The jack, tools, and spare tire are provided in the trunk as illustrated.
NOTE:
If the vehicle is equipped with the optional active stabilizer suspension system, the vehicle will not be equipped with a spare tire
Jump Starting
The 12-Volt auxiliary battery may be jump started if the vehicle does not start and the instrument cluster gauges are dim or off after depressing the brake pedal and pushing the power button.
The 12-Volt auxiliary battery is located in the trunk. The trunk opener will not operate if the auxiliary battery is discharged. Instead use the metal cut key hidden in the smart key to open the trunk.
- Open the trunk, and remove the 12-Volt auxiliary battery cover on the driver side.
- Connect the positive jumper cable to the positive battery post.
- Connect the negative jumper cable to the negative battery post.
- Place the smart key in proximity to the vehicle, depress the brake pedal, and push the power button.
NOTES:
- If the vehicle does not recognize the smart key after connecting the booster battery to the vehicle, open and close the driver door when the vehicle is shut off.
- If the smart key internal battery is dead, hold the smart key next to the power button during the start sequence.
- The high voltage HV battery pack cannot be jump started.
Immobilizer & Anti-Theft Alarm
The GS450h is equipped with an immobilizer system and an anti-theft alarm as standard equipment.
- The vehicle can be started only with a registered smart key.
- To disarm the anti-theft alarm, unlock the door by using the smart key button, hidden metal cut key, or using the door handle touch sensor. Engaging the ignition-on mode or starting the vehicle will also disarm the anti-theft alarm.