# Warning lights on 2018 Toyota Tundra 4WD Truck **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** tundra-4wd-truck, toyota\ **Created:** [July 6, 2022, 8:23pm UTC](https://community.cartalk.com/t/warning-lights-on-2018-toyota-tundra-4wd-truck/185094 "2022-07-06T20:23:18Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![JoeChance](https://avatars.discourse-cdn.com/v4/letter/j/7993a0/32.png) [@JoeChance](https://community.cartalk.com/u/JoeChance)\ **Post date:** [July 6, 2022, 8:23pm UTC](https://community.cartalk.com/t/warning-lights-on-2018-toyota-tundra-4wd-truck/185094/1 "2022-07-06T20:23:18Z")
Driving down the road the following lights came on the dash some of them flashing and loud beeping sound, also displayed the following errors on the center LCD. Lights: ABS, BRAKE, 4LO, 4HI, HAZARD TRIANGLE, BSM, TRACTION CONTOL, RCTA. WARNING MESSAGES: Drive start control malfunction, Visit your dealer. Blind spot monitor malfunction, Visit your dealer. Trailer brake error, If toeing come to a safe stop with manual controls, Contact Dealer. Rear cross traffic alert malfunction, Visit your dealer. When this happened I pulled over to a stop, placed the truck in park and turned it off. Waited 10 sec and turned it back on, same messages and lights were on. ---
**Author:** ![weekend-warrior](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/weekend-warrior/32/26122_2.png) [@weekend-warrior](https://community.cartalk.com/u/weekend-warrior)\ **Post date:** [July 6, 2022, 10:20pm UTC](https://community.cartalk.com/t/warning-lights-on-2018-toyota-tundra-4wd-truck/185094/2 "2022-07-06T22:20:08Z")
[RCLRPT-18V122-8417.PDF (nhtsa.gov)](https://static.nhtsa.gov/odi/rcl/2018/RCLRPT-18V122-8417.PDF) ---
**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\ **Post date:** [July 6, 2022, 10:32pm UTC](https://community.cartalk.com/t/warning-lights-on-2018-toyota-tundra-4wd-truck/185094/3 "2022-07-06T22:32:14Z")
Three “Visit your dealer” messages and one “contact dealer” message. The messages seem clear to me. ---
**Author:** ![Renegade](https://avatars.discourse-cdn.com/v4/letter/r/b4bc9f/32.png) [@Renegade](https://community.cartalk.com/u/Renegade)\ **Post date:** [July 6, 2022, 11:03pm UTC](https://community.cartalk.com/t/warning-lights-on-2018-toyota-tundra-4wd-truck/185094/4 "2022-07-06T23:03:52Z")
> [@Purebred](#): > > Three “Vist your dealer A not quite 4 year old truck should still be under warranty. ---
**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\ **Post date:** [July 7, 2022, 5:58am UTC](https://community.cartalk.com/t/warning-lights-on-2018-toyota-tundra-4wd-truck/185094/5 "2022-07-07T05:58:00Z")
Basic vehicle warranty is 3 years/36,000 miles, if this truck was purchased before July 6, 2019, the warranty has expired. All of those warning messages will appear when a powertrain fault is detected, need to read the PCM fault codes. ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [July 7, 2022, 11:51pm UTC](https://community.cartalk.com/t/warning-lights-on-2018-toyota-tundra-4wd-truck/185094/6 "2022-07-07T23:51:15Z")
There’s probably fewer problems than the warning messages seem to be indicating. Good advice above, first step is to check for PCM fault codes. ---
**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\ **Post date:** [July 10, 2022, 4:17pm UTC](https://community.cartalk.com/t/warning-lights-on-2018-toyota-tundra-4wd-truck/185094/7 "2022-07-10T16:17:43Z")
> [@JoeChance](#): > > Waited 10 sec and turned it back on, same messages and lights were on. > [@JoeChance](#): > > Drive start control malfunction, **Visit your dealer.** What about this command don’t you understand? Tow it to the dealer. ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [July 10, 2022, 4:20pm UTC](https://community.cartalk.com/t/warning-lights-on-2018-toyota-tundra-4wd-truck/185094/8 "2022-07-10T16:20:00Z")
> [@Mustangman](#): > > What about this command don’t you understand? Tow it to the dealer. +1 It is about as UN-ambiguous as can be, IMHO. ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [July 10, 2022, 4:55pm UTC](https://community.cartalk.com/t/warning-lights-on-2018-toyota-tundra-4wd-truck/185094/9 "2022-07-10T16:55:32Z")
> **[5 Common Symptoms of a Failing Body Control Module (BCM) - Module Experts](https://moduleexperts.com/5-common-symptoms-failing-body-control-module-bcm/)** > > If your BCM malfunctions, you will notice a negative effect on the operation of your vehicle. Watch out for these symptoms. Tester