SLEDOG Posted April 7, 2022 Share Posted April 7, 2022 The “R” light on electronic display has decided to flash when turn signals are flashing. Any ideas on cause and what does “R” indicate? Quote Link to comment https://www.bigmacktrucks.com/topic/69497-%E2%80%9Cr%E2%80%9D-lite-on-dash-of-07-granite-flashing/ Share on other sites More sharing options...
tjc transport Posted April 7, 2022 Share Posted April 7, 2022 on my 05 the "R" light in the dash came on when the trans was in reverse. 1 Quote when you are up to your armpits in alligators, it is hard to remember you only came in to drain the swamp.. Link to comment https://www.bigmacktrucks.com/topic/69497-%E2%80%9Cr%E2%80%9D-lite-on-dash-of-07-granite-flashing/#findComment-494684 Share on other sites More sharing options...
SLEDOG Posted April 8, 2022 Author Share Posted April 8, 2022 Thanks tjc I ended up hooking a separate ground to tail lights and got it working ok. bad ground I guess. Quote Link to comment https://www.bigmacktrucks.com/topic/69497-%E2%80%9Cr%E2%80%9D-lite-on-dash-of-07-granite-flashing/#findComment-494797 Share on other sites More sharing options...
tjc transport Posted April 8, 2022 Share Posted April 8, 2022 granites were known for bad instrument cluster ground in harness plug. i solved the issue by running my own ground wire after the dealer "fixed it" three times. Quote when you are up to your armpits in alligators, it is hard to remember you only came in to drain the swamp.. Link to comment https://www.bigmacktrucks.com/topic/69497-%E2%80%9Cr%E2%80%9D-lite-on-dash-of-07-granite-flashing/#findComment-494800 Share on other sites More sharing options...
SLEDOG Posted April 8, 2022 Author Share Posted April 8, 2022 Ok thanks Quote Link to comment https://www.bigmacktrucks.com/topic/69497-%E2%80%9Cr%E2%80%9D-lite-on-dash-of-07-granite-flashing/#findComment-494821 Share on other sites More sharing options...
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