Lexus RX (RX 350L, RX450h) 2016-2022 Repair Manual: Confirm Vehicle Headunit Functionality

PROCEDURE

1.

CHECK CUSTOMER'S CELLULAR PHONE COMPATIBILITY

(a) Check if the cellular phone is compatible (Refer to http://www.lexus.com/MobileLink/).

Result

Proceed to

Cellular phone is compatible.

A

Cellular phone is not compatible.

B

HINT:

It is important to check the cellular phone compatibility charts carefully:

  • Some apps may only work on cellular phones.
  • Some apps may only work when paired to a vehicle.
  • Some cellular phones do not support all features.
B

RECOMMEND COMPATIBLE CELLULAR PHONE

A

2.

CONFIRM CELLULAR PHONE SIGNAL

(a) A 3G or higher connection is required for proper LEXUS App Suite functionality. If a 3G or higher connection is not available, some applications may not function properly. ("Wi-Fi" is not an approved connection for Enform services.)

NEXT

3.

CONFIRM IF THE CUSTOMER'S CELLULAR PHONE CAN BE PAIRED TO THE VEHICLE

(a) Pair the customer's cellular phone to the vehicle.

Result

Proceed to

Cellular phone is not successfully paired.

A

Cellular phone is successfully paired.

B

B

GO TO STEP 5

A

4.

CONFIRM THAT A KNOWN GOOD CELLULAR PHONE CAN BE PAIRED TO THE VEHICLE

(a) Check that a known good cellular phone can be paired to the customer's vehicle.

Result

Proceed to

Cellular phone is successfully paired.

A

Cellular phone is not successfully paired.

B

HINT:

For instructions on how to reset the cellular phone, refer to the appropriate manufacturer's website.

A

RESET CUSTOMER'S CELLULAR PHONE (REMOVE BATTERY) AND TRY AGAIN

B

GO TO STEP 12

5.

CHECK APPS FUNCTION WHEN PAIRED

(a) Proceed to the appropriate step based on the customer concern in the table below.

Result

Proceed to

Head unit data apps (e.g. internet search) do not function properly.

A

Head unit internet radio apps do not function properly.

B

HINT:

This is a head unit functionality check. Ensure that a cellular phone is paired to the vehicle.

B

GO TO STEP 9

A

6.

CHECK DATA APPS FUNCTION ON THE HEAD UNIT

(a) Make sure that the customer's cellular phone is paired with the vehicle.

(b) Start an internet search app on the head unit.

(c) Check if a search can be made.

Result

Proceed to

Head unit data apps do not function properly.

A

Head unit data apps function properly.

B

B

END (NO PROBLEM WAS FOUND)

A

7.

RECORD ERROR MESSAGES IF PRESENT

NEXT

8.

CHECK ENFORM SEARCH FUNCTION ON THE HEAD UNIT USING A KNOWN GOOD CELLULAR PHONE

(a) Make sure that a known good cellular phone is paired with the vehicle.

(b) Start an internet search app on the head unit.

(c) Check if a search can be made.

Result

Proceed to

Head unit data apps function properly.

A

Head unit data apps do not function properly.

B

HINT:

For instructions on how to reset the cellular phone, refer to the appropriate manufacturer's website.

A

RESET CUSTOMER'S CELLULAR PHONE (REMOVE BATTERY) AND TRY AGAIN

B

GO TO STEP 12

9.

CHECK INTERNET RADIO FUNCTION ON THE HEAD UNIT USING THE CUSTOMER'S CELLULAR PHONE

(a) Make sure that the customer's cellular phone is paired with the vehicle.

(b) Start an internet radio app on the head unit.

(c) Check that the audio can be heard through the vehicle's speakers.

Result

Proceed to

Head unit internet radio apps do not function properly.

A

Head unit internet radio apps function properly.

B

B

END (NO PROBLEM WAS FOUND)

A

10.

RECORD ERROR MESSAGES IF PRESENT

NEXT

11.

CHECK INTERNET RADIO FUNCTION ON THE HEAD UNIT USING A KNOWN GOOD CELLULAR PHONE

(a) Make sure that a known good cellular phone is paired with the vehicle.

(b) Start an internet radio app on the head unit.

(c) Check that the audio can be heard through the speakers.

Result

Proceed to

Head unit internet radio apps do not function properly using a known good cellular phone.

A

Head unit internet radio apps function properly using known good cellular phone.

B

HINT:

For instructions on how to reset the cellular phone, refer to the appropriate manufacturer's website.

B

RESET CUSTOMER'S CELLULAR PHONE (REMOVE BATTERY) AND TRY AGAIN

A

12.

PERFORM LEXUS APP SUITE RESET PROCEDURE

(a) Perform the LEXUS App Suite reset procedure.

Click here

Result

Proceed to

The problem symptom has been repaired.

A

The problem symptom has not been repaired.

B

A

END

B

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

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